Noteworthy changes in version 2.5.18 (2026-02-24)
-------------------------------------------------

  * gpg: Support deleting a composite secret key in gpg-agent.  [T7875]

  * gpg: Fix armor parsing when no CRC is found.  [T7071]

  * gpgsm: New option --assert-validsig.  [rG9500b2c776]

  * agent: Fix the recent regression in pkdecrypt with TPM RSA.
    [T8045]

  * scdaemon: Add support for D-Trust Card 6.1/6.4.  [rG987c6a398a]

  * dirmngr: Let KS_SEARCH print all uid records for a key.
    Fixes regression since 2015.  [rG2dde9ddf56]

  * gpg-authcode-sign.sh: Keep the log file even on success.
    [rGc0f9ca47f0]

  Release-info: https://dev.gnupg.org/T7999


Noteworthy changes in version 2.5.17 (2026-01-27)
-------------------------------------------------

  * agent: Fix stack buffer overflow when using gpgsm and KEM.  This
    was introduced with 2.5.13; see the advisory.  [T8044]

  * tpm: Fix possible buffer overflow in PKDECRYPT.  [T8045]

  * gpg: Fix possible NULL-deref with overlong signature packets.
    [T8049]

  * gpg: New export-option "keep-expired-subkeys".  [T7990]

  * gpgsm: Make multiple search patterns work with keyboxd.  [T8026]

  * agent: Add accelerator keys for "Wrong" and "Correct".  [T8055]

  * dirmngr: Help detection of bad keyserver configurations.  [T7730]

  Release-info: https://dev.gnupg.org/T7996


Noteworthy changes in version 2.5.16 (2025-12-30)
-------------------------------------------------

  * gpg: Fix a regression in 2.5.15 which created new keys with just
    the fallback preferences.  [T7909]

  Release-info: https://dev.gnupg.org/T7995


Noteworthy changes in version 2.5.15 (2025-12-29)
-------------------------------------------------

  * gpg: Fix a validation bug when using keyboxd.  [T7983]

  * gpg: Deprecate the option --not-dash-escaped and ignore the
    NotDashEscaped armor header.  [T7901]

  * keyboxd: Fix migration to new schema.  [T7892,rG81bb949755]

  * dirmngr: New compatibility flag "ocsp-sha256-certid" to support
    forthcoming libksba versions.  [rG674aa54242]

  * Use a synchronous spawning method for the daemon processes under
    Windows.  [T7716]

  * Avoid the function name thread_init to fix building on AIX.
    [T7958]

  * New translation to Georgian.

  Release-info: https://dev.gnupg.org/T7940


Noteworthy changes in version 2.5.14 (2025-11-19)
-------------------------------------------------

  * gpg: Fix possible memory corruption in the armor parser.  [T7906]

  * gpgsm: Fix output of card serial number in colon listing.  [T7914]

  * agent:ssh: Fix RSA signature handling for newer spec.  [T7882]

  * gpg: Improve/relax the checking of preference options.
    [rG6570700fdd]

  * gpg: Fix the check for the END armor line.  [rG62b8bf2f39]

  * gpg: Do not present a default when asking for another output
    filename.  [T7908]

  * gpg: Include ADSK keys in key listings specified by fingerprints.
    [T7892]

  * agent: Fix a decryption failures if the pinentry dialog for the
    first tried recipient is canceled.  Regression since 2.5.7.
    [T7893, T7649]

  * keyboxd: Fix schema of the fingerprint table.  [T7892]

  * dirmngr: Fix OCSP next-update check.  [rG9ef87bcdb0]

  * gpg: New "pfc" record in colons key listings.  [T7897]

  * gpg: Allow import and export of Kyber secret keys.  [T7315]

  * gpg: Escape characters with the high bit set in NOTATION status
    lines.  [T7896]

  * gpg: New import option "force-update".  [T7892,rGf6237ccd31]

  * agent: Accept a trustlist with a missing LF at the end.
    [rG1b4ac98de7]

  * agent: Support protection for Kyber keys.  [T6638,rGaea62817f3]

  * scd:nks: Make newer TCOS signature cards work.  [rG17596e830f]

  Release-info: https://dev.gnupg.org/T7869


Noteworthy changes in version 2.5.13 (2025-10-22)
-------------------------------------------------

  * gpg: Fix de-vs compliance with OCB and additional password.
    [T7804]

  * gpg: Detect duplicate keys with --add-recipients.  [T1825]

  * gpg: Take care about the prefix for cv25519 encryption.  [T7649]

  * gpg: Avoid potential downgrade to SHA1 in 3rd party key
    signatures.  [T7904,rGdb9705ef59]

  * gpg: Error out on unverified output for non-detached signatures.
    [T7903,rG8abc320f2a]

  * gpgsm: Use KEM interface for en- and decryption.  [T7811,T7845]

  * gpgsm: Fix delete and store certificate locking glitches.  [T7855]

  * gpg,gpgsm: Run keybox compression only when there are no other
    users.  [T7855]

  * gpg,gpgsm: Improve keybox closing and locking order on read and
    write.  [T7855]

  * gpg,gpgsm: Always use share mode read-write for the keybox file
    access.  [T7829]

  * scd:openpgp: Fix an oddity in changing the PIN.  [T7840]

  * dirmngr: New LDAP keyserver flag "upload".  [T7866]

  * agent: Retry private key deletion in case of sharing violations
    for up to 400ms.  [T7863]

  * Take care of a possible race on daemon startup under Windows.
    [T7829]

  * Improve file renaming on Windows in case of a sharing violation
    error.  [T7829]

  Release-info: https://dev.gnupg.org/T7801


Noteworthy changes in version 2.5.12 (2025-09-02)
-------------------------------------------------

  * gpg: New options --[no-]auto-key-upload.  [T7333]

  * gpg: Keys send to an LDAP server are now first updated from that
    server.  New keyserver option "no-update-before-send" to disable
    this feature.  [T7730]

  * gpg: Disable default compression for 7z compressed input.
    [rG53252628de]

  * gpg: Fix a regression with composite PQC and ECC algos.  [T7649]

  * gpg: Fix the list of possible algos for --edit-key:addkey.
    [T7788]

  * gpg: Allow to select the Kyber variants with --edit-key:addkey.
    [T7792]

  * gpg: Avoid a second Pinentry pop-up for a configured ADSK during
    key generation.  [T7491]

  * gpg: Change the ADSK key binding time to use the current time.
    [T6882]

  * gpgsm: Add option --no-qes-note and new trustlist flag
    "noconsent".  [T7713]

  * agent: Enable "relax" in the trustlist by default and add flag
    "norelax".  [rG7b133027ae]

  * agent: Fix a crash on Windows in the Putty support.  [T7799]

  * dirmgr: Support LDAP servers using a schema like the Windows LDS
    servers.  [T7742]

  * scd:openpgp: Support Yubikey attestation generation.
    [rG5ddfedf24a]

  * gpgtar: Fix regression in end-of-archive detection.  [T7757]

  Release-info: https://dev.gnupg.org/T7756


Noteworthy changes in version 2.5.11 (2025-07-30)
-------------------------------------------------

  * gpg: Fix a segv in key signing with notations introduced in
    2.5.10.  [T7754]

  * agent: Fix for smartcard decryption with Brainpool keys.  [T7709]

  Release-info: https://dev.gnupg.org/T7743


Noteworthy changes in version 2.5.10 (2025-07-25)
-------------------------------------------------

  * gpg: Add a notation with version information to signatures.  See
    doc/DETAILS for, well, details.  [rG11d3a83b04]

  * gpgv: New option --print-notation.  [rGe3cc410003]

  * gpgsm: Fix caching of the trustlist's flags.  [T7738]

  * agent: Fix for smartcard decryption returning x-coordinate only.
    [T7709]

  * agent: Another fix for a regression with unknown curves and ssh.
    See also 2.5.4.  [rG55db12472f]

  * dirmngr: Implement command KS_DEL for ldap servers.  [T5447]

  Release-info: https://dev.gnupg.org/T7719


Noteworthy changes in version 2.5.9 (2025-07-10)
------------------------------------------------

  * gpg: Add the revocation reason to the sigclass of a "rev" line.
    Regression in 2.5.7.  [T7073]

  * gpg: Do not show the non-standard secp256k1 curve in the menu to
    select the curve.  It can however be specified using its name.
    [rG49a9171f63]

  * gpg: Fix regression in using the secp256k1 curve.  [T7698]

  * dirmngr: New option --user-agent and send a default User-Agent of
    "GnuPG/2.6" for all HTTP requests.  [T7715]


  Release-info: https://dev.gnupg.org/T7695


Noteworthy changes in version 2.5.8 (2025-06-20)
------------------------------------------------

  * gpg: Show revocation reason with a standard -k listing.  [T7083]

  * gpg: Emit a revocation reason as comment in a "pub" record.
    [T7083]

  * agent: Fix regression in 2.5.7 decrypting with a card based
    cv25519 key.  [T7676]

  * scd:openpgp: Fix a regression in exporting card based ed25519 ssh
    keys.  [T7589]

  * dirmngr: Do not require a keyserver for "gpg --fetch-key".
    [T7693]


  See-also: gnupg-announce/2025q2/000494.html
  Release-info: https://dev.gnupg.org/T7672


Noteworthy changes in version 2.5.7 (2025-06-02)
------------------------------------------------

  * gpg: Allow updating a SHA-1 key certification w/o using
    the --force-sign-key option.  [T7663]

  * gpg: The group key flag has now been fully implemented.
    [rG8833a34bf0]

  * gpg: Make combination of show-only-fpr-mbox and show-unusable-uid
    work.  [rGd5a4a2dc89]

  * gpg: Do not allow compressed key packets on import.  [T7014]

  * gpgsm: Allow an empty subject DN also during import.  [T7171]

  * agent: Recover the old behavior with max-cache-ttl=0.  [T6681]

  * agent: Fix ECC key on smartcard for composite KEM with PQC.
    [T7648]

  * scd: Fix a harmless read buffer over-read in a function used by
    PKCS#15 cards.  [T7662]

  * gpg-mail-tube,wks: Support templates for mail content.  [T7381]

  * Use the KEM interface of Libgcrypt for encryption/decryption.
    [T7649]

  * Fix a glitch in socket handling in Windows in case of a nonce
    mismatch.  [rG645cf7d8fc]


  See-also: gnupg-announce/2025q2/000493.html
  Release-info: https://dev.gnupg.org/T7671


Noteworthy changes in version 2.5.6 (2025-05-08)
------------------------------------------------

  * gpg: Add a flag to the filter expressions for left anchored
    substring match.  [rGc12b7d047e]

  * gpg: New list option "show-trustsig" to avoid resorting to colon
    mode for this info.  [rG41d6ae8f41]

  * gpg: New command --quick-tsign-key to create a trust signature.
    [rGd90b290f97]

  * gpg: New keygen parameter "User-Id".  [rGcfd597c603]

  * gpg: New list options "show-trustsig".  [rGrG41d6ae8f41]

  * gpg: Fix double free of internal data in no-sig-cache mode [T7547]

  * gpg: Signatures from revoked or expired keys do not anymore show
    up as missing keys.  Fixes regression in 2.5.5.  [T7583]

  * gpgsm: Extend --learn-card by an optional s/n argument.  [T7379]

  * gpgsm: Skip expired certificates when selection a certificate by
    subject.  [rG4cf83273e8]

  * card: New command "ll" as alias for "list --cards".  [rGd6ee7adebe]

  * scd: Fix posssible lockup on Windows due to a lost select
    result.  [rGa7ec3792c5]

  * scd:p15: Accept P15 cards with a zero-length label.  [rGdb25aa9887]

  * keyboxd: Use case-insensitive search for mail addresses.  [T7576]

  * dirmngr: Fix a problem in libdns related to an address change from
    127.0.0.1.  [T4021]

  * gpgconf: Fix reload and kill of keyboxd.  [T7569]

  * Fix logic for certain recsel conditions.  [rG8968e84903]

  * Add Solaris support to get_signal_name.  [T7638]

  * Fix build error of the test shell on AIX.  [T7632]

  See-also: gnupg-announce/2025q2/000492.html
  Release-info: https://dev.gnupg.org/T7586


Noteworthy changes in version 2.5.5 (2025-03-07)
------------------------------------------------

  * gpg: Fix a verification DoS due to a malicious subkey in the
    keyring.  [T7527]

  * dirmngr: Fix possible hangs due to blocking connection requests.
    [T6606, T7434]

  * w32: On socket nonce mismatch close the socket.  [T7434]

  * w32: Print more detailed diagnostics for IPC errors.

  * GPGME is not any more distributed with the Windows installer.
    Please install gpg4win to get gpgme version.

  See-also: gnupg-announce/2025q1/000491.html
  Release-info: https://dev.gnupg.org/T7530


Noteworthy changes in version 2.5.4 (2025-02-12)
------------------------------------------------

  * gpg: New option --disable-pqc-encryption.  [rG00c31f8b04]

  * gpg: Fix --quick-add-key for Weierstrass ECC with usage given.
    [T7506]

  * gpg: Fix handling with no CRC armor.  [T7071]

  * gpg: New private Kyber keys are now cross-referenced using a new
    Link attribute.  [T6638]

  * gpg: Fix an import problem with keys having another primary key as
    a subkey.  [T7527]

  * gpgsm: Allow unattended PKCS#12 export without passphrase.
    [rG159e801043]

  * gpgsm: Allow CSR generation with an unprotected key.
    [rG89055f24f4]

  * agent: New option --change-std-env-name.  [T7522]

  * agent: Fix ssh-agent's request_identities for skipped Brainpool
    keys.  [rG2469dc5aae]

  * Do not package zlib and bzip2 object files in a speedo release
    build.  [T7442]

  See-also: gnupg-announce/2025q1/000490.html
  Release-info: https://dev.gnupg.org/T7480


Noteworthy changes in version 2.5.3 (2025-01-09)
------------------------------------------------

  * gpg: Allow for signature subpackets of up to 30000 octets.
    [rG36dbca3e69]

  * gpg: Silence expired trusted-key diagnostics in quiet mode.  [T7351]

  * gpg: Allow smaller session keys with Kyber and enforce the use of
    AES-256 if useful.  [T7472]

  * gpg: Fix regression in key generation from existing card key.
    [T7309,T7457]

  * gpg: Print a warning if the card backup key could not be written.
    [T2169]

  * The --supervised options of gpg-agent and dirmngr have been
    renamed to --deprecated-supervised as preparation for their
    removal.  [rGa019a0fcd8]


  See-also: gnupg-announce/2025q1/000489.html
  Release-info: https://dev.gnupg.org/T7442


Noteworthy changes in version 2.5.2 (2024-12-05)
------------------------------------------------

  * gpg: Add option 16 to --full-gen-key to create ECC+Kyber.  [T6638]

  * gpg: For composite algos add the algo string to the colons
    listings.  [T6638]

  * gpg: Validate the trustdb after the import of a trusted key.
    [T7200]

  * gpg: Exclude expired trusted keys from the key validation process.
    [T7200]

  * gpg: Fix a wrong decryption failed status for signed and OCB
    encrypted messages without a signature verification key.  [T7042]

  * gpg: Retain binary representation for import->export with Ed25519
    key signatures.  [T7426]

  * gpg: Fix comparing ed448 to ed25519 with --assert-pubkey-algo.
    [T7425]

  * gpg: Avoid a failure exit code for expired ultimately trusted
    keys.  [T7351]

  * gpg: Emit status error for an invalid ADSK.  [T7322]

  * gpg: Allow the use of an ADSK subkey as ADSK subkey.  [T6882]

  * gpg: Fix --quick-set-expire for V5 subkey fingerprints.  [T7298]

  * gpg: Robust error handling for SCD READKEY.  [T7309]

  * gpg: Fix cv25519 v5 export regression.  [T7316]

  * gpgsm: Nearly fourfold speedup of validated certificate listings.
    [T7308]

  * gpgsm: Improvement for some rare P12 files.  [rGf50dde6269]

  * gpgsm: Terminate key listing on output write error.  [T6185]

  * agent: Add option --status to the LISTRUSTED command.
    [rG4275d5fa7a]

  * agent: Fix detection of the yet unused trustflag de-vs.  [T5079]

  * agent: Allow ssh to sign data larger than the Assuan line length.
    [T7436]

  * keyboxd: Fix a race condition on the database handle.  [T7294]

  * dirmngr: A list of used URLs for loaded CRLs is printed first in
    the output of the LISTCRL command.  [T7337]

  * scd: More mitigations against lock ups with multiple cards or
    apps.  [T7323, T7402]

  * gpgtar: Use log-file from common.conf only in --batch mode.
    [rGb389e04ef5]

  * gpgtar: Fix directory creation during extraction.  [T7380]

  * gpg-mail-tube: Minor fixes.

  * gpgconf: Add list flag to trusted-key et al.  [T7313]

  * Implement GNUPG_ASSUME_COMPLIANCE envvar and registry key for
    testing de-vs compliance mode.  [rGb287fb5775,rG7b0be541a9]

  * Enable additional runtime protections in speedo builds for
    Windows.  [rG39aa206dc5]

  * Fix a race condition in creating the socket directory.  [T7332]

  * Fix a build problem on macOS (missing unistd.h).  [T7193]


  See-also: gnupg-announce/2024q4/000488.html
  Release-info: https://dev.gnupg.org/T7289


Noteworthy changes in version 2.5.1 (2024-09-12)
------------------------------------------------

  * gpg: The support for composite Kyber+ECC public key algorithms
    does now use the final FIPS-203 and LibrePGP specifications.  The
    experimental keys from 2.5.0 are no longer supported.  [T6815]

  * gpg: New commands --add-recipients and --change-recipients.
    [T1825]

  * gpg: New option --proc-all-sigs.  [T7261]

  * gpg: Fix a regression in 2.5.0 in gpgme's tests.  [T7195]

  * gpg: Make --no-literal work again for -c and --store.  [T5852]

  * gpg: Improve detection of input data read errors.  [T6528]

  * gpg: Fix getting key by IPGP record (rfc-4398).  [T7288]

  * gpgsm: New option --assert-signer.  [T7286]

  * gpgsm: More improvements to PKCS#12 parsing to cope with latest
    IVBB changes.  [T7213]

  * agent: Fix KEYTOCARD command when used with a loopback pinentry.
    [T7283]

  * gpg-mail-tube: Make sure GNUPGHOME is set in vsd mode.  New option
    --as-attach.  [rG4511997e9e1b]

  * Now uses the process spawn API from libgpg-error.  [T7192,T7194]

  * Removed the --enable-gpg-is-gpg2 configure time option.
    [rG2125f228d36c]

  * Die Windows version will now be build for 64-Bit Windows and with
    the corresponding changes to the installation directory and
    Registry keys.


  See-also: gnupg-announce/2024q3/000485.html
  Release-info: https://dev.gnupg.org/T7191


Noteworthy changes in version 2.5.0 (2024-07-05)
------------------------------------------------

  * gpg: Support composite Kyber+ECC public key algorithms.  This is
    experimental due to the yet outstanding FIPS-203 specification.
    [T6815]

  * gpg: Allow algo string "pqc" for --quick-gen-key.  [rG12ac129a70]

  * gpg: New option --show-only-session-key.  [rG1695cf267e]

  * gpg: Print designated revokers also in non-colon listing mode.
    [rG9d618d1273]

  * gpg: Make --with-sig-check work with --show-key in non-colon
    listing mode.  [rG0c34edc443]

  * tpm: Rework error handling and fix key import [T7129, T7186]

  * Varous fixes to improve robustness on 64 bit Windows.  [T7139]


  Changes also found in 2.4.6:

  * gpg: New command --quick-set-ownertrust.  [rG967678d972]

  * gpg: Indicate disabled keys in key listings and add list option
    "show-ownertrust".  [rG2a0a706eb2]

  * gpg: Make sure a DECRYPTION_OKAY is never issued for a bad OCB
    tag.  [T7042]

  * gpg: Do not allow to accidently set the RENC usage.  [T7072]

  * gpg: Accept armored files without CRC24 checksum.  [T7071]

  * gpg: New --import-option "only-pubkeys".  [T7146]

  * gpg: Repurpose the AKL mechanism "ldap" to work like the keyserver
    mechnism but only for LDAP keyservers.  [rG068ebb6f1e]

  * gpg: ADSKs are now configurable for new keys.  [T6882]

  * gpgsm: Emit user IDs with an empty Subject also in colon mode.
    [T7171]

  * agent: Consider an empty pattern file as valid.  [rGc27534de95]

  * agent: Fix error handling of READKEY.  [T6012]

  * agent: Avoid random errors when storing key in ephemeral mode.
    [T7129, rGfdc5003956]

  * agent: Make "SCD DEVINFO --watch" more robust.  [T7151]

  * scd: Improve KDF data object handling for OpenPGP cards.  [T7058]

  * scd: Avoid buffer overrun with more than 16 PC/SC readers.
    [T7129, rG4c1b007035]

  * scd: Fix how the scdaemon on its pipe connection finishes.
    [T7160]

  * gpgconf: Check readability of some files with -X and change its
    output format.  [rG98e287ba6d]

  * gpg-mail-tube: New tool to apply PGP/MIME encryption to a mail.
    [rG28a080bc9f]

  * Fix some uninitialized variables and double frees in error code
    paths.  [T7129]


  Changes also found in 2.4.5:

  * gpg,gpgv: New option --assert-pubkey-algo.  [T6946]

  * gpg: Emit status lines for errors in the compression layer.
    [T6977]

  * gpg: Fix invocation with --trusted-keys and --no-options.  [T7025]

  * gpgsm: Allow for a longer salt in PKCS#12 files.  [T6757]

  * gpgtar: Make --status-fd=2 work on Windows.  [T6961]

  * scd: Support for the ACR-122U NFC reader.  [rG1682ca9f01]

  * scd: Suport D-TRUST ECC cards.  [T7000,T7001]

  * scd: Allow auto detaching of kernel drivers; can be disabled with
    the new compatibility-flag ccid-no-auto-detach.  [rGa1ea3b13e0]

  * scd: Allow setting a PIN length of 6 also with a reset code for
    openpgp cards.  [T6843]

  * agent: Allow GET_PASSPHRASE in restricted mode.  [rGadf4db6e20]

  * dirmngr: Trust system's root CAs for checking CRL issuers.
    [T6963]

  * dirmngr: Fix regression in 2.4.4 in fetching keys via hkps.
    [T6997]

  * gpg-wks-client: Make option --mirror work properly w/o specifying
    domains.  [rG37cc255e49]

  * g13,gpg-wks-client: Allow command style options as in "g13 mount
    foo".  [rGa09157ccb2]

  * Allow tilde expansion for the foo-program options.  [T7017]

  * Make the getswdb.sh tool usable outside the GnuPG tree.


  Changes also found in 2.4.4:

  * gpg: Do not keep an unprotected smartcard backup key on disk.  See
    https://gnupg.org/blog/20240125-smartcard-backup-key.html for a
    security advisory.  [T6944]

  * gpg: Allow to specify seconds since Epoch beyond 2038 on 32-bit
    platforms.  [T6736]

  * gpg: Fix expiration time when Creation-Date is specified.  [T5252]

  * gpg: Add support for Subkey-Expire-Date.  [rG96b69c1866]

  * gpg: Add option --with-v5-fingerprint.  [T6705]

  * gpg: Add sub-option ignore-attributes to --import-options.
    [rGd4976e35d2]

  * gpg: Add --list-filter properties sig_expires/sig_expires_d.
    [rGbf662d0f93af]

  * gpg: Fix validity of re-imported keys.  [T6399]

  * gpg: Report BEGIN_ status before examining the input.  [T6481]

  * gpg: Don't try to compress a read-only keybox.  [T6811]

  * gpg: Choose key from inserted card over a non-inserted
    card. [T6831]

  * gpg: Allow to create revocations even with non-compliant algos.
    [T6929]

  * gpg: Fix regression in the Revoker keyword of the parameter file.
    [T6923]

  * gpg: Improve error message for expired default keys.  [T4704]

  * gpgsm: Add --always-trust feature.  [T6559]

  * gpgsm: Support ECC certificates in de-vs mode.  [T6802]

  * gpgsm: Major rewrite of the PKCS#12 parser.  [T6536]

  * gpgsm: No not show the pkcs#12 passphrase in debug output.  [T6654]

  * keyboxd: Timeout on failure to get the database lock.  [T6838]

  * agent: Update the key stubs only if really modified.  [T6829]

  * scd: Add support for certain Starcos 3.2 cards.  [rG5304c9b080]

  * scd: Add support for CardOS 5.4 cards.  [rG812f988059]

  * scd: Add support for D-Trust 4.1/4.4 cards.  [rG0b85a9ac09]

  * scd: Add support for Smartcafe Expert 7.0 cards.  [T6919]

  * scd: Add a length check for a new PIN.  [T6843]

  * tpm: Fix keytotpm handling in the agent.  [rG9909f622f6]

  * tpm: Fixes for the TPM test suite.  [T6052]

  * dirmngr: Avoid starting a second instance on Windows via GPGME
    based launching.  [T6833]

  * dirmngr: New option --ignore-crl-extensions.  [T6545]

  * dirmngr: Support config value "none" to disable the default
    keyserver.  [T6708]

  * dirmngr: Implement automatic proxy detection on Windows.  [T5768]

  * dirmngr: Fix handling of the HTTP Content-Length.  [rGa5e33618f4]

  * dirmngr: Add code to support proxy authentication using the
    Negotiation method on Windows.  [T6719]

  * gpgconf: Add commands --lock and --unlock.  [rG93b5ba38dc]

  * gpgconf: Add keyword socketdir to gpgconf.ctl.  [rG239c1fdc28]

  * gpgconf: Adjust the -X command for the new VERSION file format.
    [T6918]

  * wkd: Use export-clean for gpg-wks-client's --mirror and --create
    commands.  [rG2c7f7a5a278c]

  * wkd: Make --add-revocs the default in gpg-wks-client.  New option
    --no-add-revocs.  [rG10c937ee68]

  * Remove duplicated backslashes when setting the homedir.  [T6833]

  * Ignore attempts to remove the /dev/null device.  [T6556]

  * Improve advisory file lock retry strategy.  [T3380]

  * Improve the speedo build system for Unix.  [T6710]


  Changes also found in 2.4.3:

  * gpg: Set default expiration date to 3 years.  [T2701]

  * gpg: Add --list-filter properties "key_expires" and
     "key_expires_d".  [T6529]

  * gpg: Emit status line and proper diagnostics for write errors.
    [T6528]

  * gpg: Make progress work for large files on Windows.  [T6534]

  * gpg: New option --no-compress as alias for -z0.

  * gpg: Show better error messages for blocked PINs.  [T6425]

  * gpgsm: Print PROGRESS status lines.  Add new --input-size-hint.
    [T6534]

  * gpgsm: Support SENDCERT_SKI for --call-dirmngr.  [rG701a8b30f0]

  * gpgsm: Major rewrite of the PKCS#12 parser.  [T6536]

  * gpgtar: New option --no-compress.

  * dirmngr: Extend the AD_QUERY command.  [rG207c99567c]

  * dirmngr: Disable the HTTP redirect rewriting.  [T6477]

  * dirmngr: New option --compatibility-flags.  [rGbf04b07327]

  * dirmngr: New option --ignore-crl-extensions.  [T6545]

  * dirmngr: Support config value "none" to disable the default
    keyserver.  [T6708]

  * wkd: Use export-clean for gpg-wks-client's --mirror and --create
    commands.  [rG2c7f7a5a27]

  * wkd: Make --add-revocs the default in gpg-wks-client.  New option
    --no-add-revocs.  [rG10c937ee68]

  * scd: Make signing work for Nexus cards.  [rGb83d86b988]

  * scd: Fix authentication with Administration Key for PIV.
    [rG25b59cf6ce]

  * Fix garbled time output in non-English Windows.  [T6741]


  Changes also found in 2.4.2:

  * gpg: Print a warning if no more encryption subkeys are left over
    after changing the expiration date.  [rGef2c3d50fa]

  * gpg: Fix searching for the ADSK key when adding an ADSK.  [T6504]

  * gpgsm: Speed up key listings on Windows.  [rG08ff55bd44]

  * gpgsm: Reduce the number of "failed to open policy file"
    diagnostics.  [rG68613a6a9d]

  * agent: Make updating of private key files more robust and track
    display S/N.  [T6135]

  * keyboxd: Avoid longish delays on Windows when listing keys.
    [rG6944aefa3c]

  * gpgtar: Emit extra status lines to help GPGME.  [T6497]

  * w32: Avoid using the VirtualStore.  [T6403]


  Release-info: https://dev.gnupg.org/T7189


Release dates of 2.4 versions
-----------------------------

Version 2.4.6 (unreleased) https://dev.gnupg.org/T7030
Version 2.4.5 (2024-03-07) https://dev.gnupg.org/T6960
Version 2.4.4 (2024-01-25) https://dev.gnupg.org/T6578
Version 2.4.3 (2023-07-04) https://dev.gnupg.org/T6509
Version 2.4.2 (2023-05-30) https://dev.gnupg.org/T6506
Version 2.4.1 (2023-04-28) https://dev.gnupg.org/T6454
Version 2.4.0 (2022-12-16) https://dev.gnupg.org/T6302


Noteworthy changes in version 2.4.1 (2023-04-28)
------------------------------------------------

  * If the ~/.gnupg directory does not exist, the keyboxd is now
    automagically enabled.  [rGd9e7488b17]

  * gpg: New option --add-desig-revoker.  [rG3d094e2bcf]

  * gpg: New option --assert-signer.  [rGc9e95b8dee]

  * gpg: New command --quick-add-adsk and other ADSK features.
    [T6395, https://gnupg.org/blog/20230321-adsk.html]

  * gpg: New list-option "show-unusable-sigs".  Also show
    "[self-signature]" instead of the user-id in key signature
    listings.  [rG103acfe9ca]

  * gpg: For symmetric encryption the default S2K hash is now SHA256.
    [T6367]

  * gpg: Detect already compressed data also when using a pipe.  Also
    detect JPEG and PNG file formats.  [T6332]

  * gpg: New subcommand "openpgp" for --card-edit.  [T6462]

  * gpgsm: Verification of detached signatures does now strip trailing
    zeroes from the input if --assume-binary is used.  [rG2a13f7f9dc]

  * gpgsm: Non-armored detached signature are now created without
    using indefinite form length octets.  This improves compatibility
    with some PDF signature verification software.  [rG8996b0b655]

  * gpgtar: Emit progress status lines in create mode.  [T6363]

  * dirmngr: The LDAP modifyTimestamp is now returned by some
    keyserver commands.  [rG56d309133f]

  * ssh: Allow specification of the order keys are presented to ssh.
    See the man page entry for --enable-ssh-support.  [T5996, T6212]

  * gpg: Make list-options "show-sig-subpackets" work again.
    Fixes regression in 2.4.0.  [rG5a223303d7]

  * gpg: Fix the keytocard command for Yubikeys.  [T6378]

  * gpg: Do not continue an export after a cancel for the primary key.
    [T6093]

  * gpg: Replace the --override-compliance-check hack by a real fix.
    [T5655]

  * gpgtar: Fix decryption with input taken from stdin.  [T6355]

  See-also: gnupg-announce/2023q2/000478.html
  Release-info: https://dev.gnupg.org/T6454


Noteworthy changes in version 2.4.0 (2022-12-16)
------------------------------------------------

  * gpg: New command --quick-update-pref.  [rGd40d23b233]

  * gpg: New list-options show-pref and show-pref-verbose.
    [rG811cfa34cb]

  * gpg: New option --list-filter to restrict key listings like
      gpg -k --list-filter 'select=revoked-f && sub/algostr=ed25519'
    [rG1324dc3490]

  * gpg: New --export-filter export-revocs.  [rGc985b52e71]

  * gpg: Also import stray revocation certificates.  [rG7aaedfb107]

  * gpg: Add a notation to encryption subkeys in de-vs mode.  [T6279]

  * gpg: Improve signature verification speed by a factor of more than
    four.  Double detached signing speed.  [T5826]

  * gpg: Allow only OCB for AEAD encryption.  [rG5a2cef801d]

  * gpg: Fix trusted introducer for mbox only user-ids.  [T6238]

  * gpg: Report an error via status-fd for receiving a key from the
    agent.  [T5151]

  * gpg: Make --require-compliance work without the --status-fd
    option.  [rG2aacd843ad]

  * gpg: Fix verification of cleartext signatures with overlong lines.
    [T6272]

  * agent: Fix import of protected OpenPGP v5 keys.  [T6294]

  * gpgsm: Change the default cipher algorithm from AES128 to AES256.
    Also announce support for this in signatures.  [rG2d8ac55d26]

  * gpgsm: Always use the chain validation model if the root-CA
    requests this.  [rG7fa1d3cc82]

  * gpgsm: Print OCSP revocation date and reason in cert listings.
    [rGb6abaed2b5]

  * agent: Support Win32-OpenSSH emulation by gpg-agent.  [T3883]

  * scd: Support the Telesec Signature Card v2.0.  [T6252]

  * scd: Redact --debug cardio output of a VERIFY APDU.  [T5085]

  * scd: Skip deleted pkcs#15 records in CARDOS 5.  [rG061efac03f]

  * dirmngr: Fix build with no LDAP support.  [T6239]

  * dirmngr: Fix verification of ECDSA signed CRLs.  [rG868dabb402]

  * wkd: New option --add-revocs for gpg-wks-client.  [rGc3f9f2d497]

  * wkd: Ignore expired user-ids in gpg-wks-client.  [T6292]

  * card: New commands "gpg" and "gpgsm".  [rG9c4691c73e]

  See-also: gnupg-announce/2022q4/000477.html
  Release-info: https://dev.gnupg.org/T6303


Noteworthy changes in version 2.3.8 (2022-10-13)
------------------------------------------------

  * gpg: Do not consider unknown public keys as non-compliant while
    decrypting.  [T6205]

  * gpg: Avoid to emit a compliance mode line if Libgcrypt is
    non-compliant.  [T6221]

  * gpg: Improve --edit-key setpref command to ease c+p.  [rG1908fa8b83]

  * gpg: Emit an ERROR status if --quick-set-primary-uid fails and
    allow to pass the user ID by hash.  [T6126]

  * gpg: Actually show symmetric+pubkey encrypted data as de-vs
    compliant.  Add extra compliance checks for symkey_enc packets.
    [T6119]

  * gpg: In de-vs mode use SHA-256 instead of SHA-1 as implicit
    preference.  [T6043]

  * gpgsm: Fix reporting of bad passphrase error during PKCS#11
    import.  [T5713,T6037]

  * agent: Fix a regression in "READKEY --format=ssh".  [T6012]

  * agent: New option --need-attr for KEYINFO.  [rG989eae648c]

  * agent: New attribute "Remote-list" for use by KEYINFO.
    [r1383aa4750]

  * scd: Fix problem with Yubikey 5.4 firmware.  [T6070]

  * dirmngr: Fix CRL Distribution Point fallback to other schemes.
    [rG0c8299e2b5]

  * dirmngr: New LDAP server flag "areconly" (A-record-only).
    [rGd65a0335e5]

  * dirmngr: Fix upload of multiple keys for an LDAP server specified
    using the colon format.  [rG536b5cd663]

  * dirmngr: Use LDAP schema v2 when a Base DN is specified.  [T6047]

  * dirmngr: Avoid caching expired certificates.  [T6142]

  * wkd: Fix path traversal attack in gpg-wks-server.  Add the mail
    address to the pending request data.  [rG8a63a8c825,T6098]

  * wkd: New command --mirror for gpg-wks-client.  [T6224]

  * gpg-auth: New tool for authentication.  [T5862]

  * New common.conf option no-autostart.  [rG203dcc19eb]

  * Silence warnings from AllowSetForegroundWindow unless
    GNUPG_EXEC_DEBUG_FLAGS is used.  [rG4ef8516a79]

  Release-info: https://dev.gnupg.org/T6106
  See-also: gnupg-announce/2022q4/000476.html


Noteworthy changes in version 2.3.7 (2022-07-11)
------------------------------------------------

  * gpg: Fix possibly garbled status messages in NOTATION_DATA.  This
    bug could trick GPGME and other parsers to accept faked status
    lines.  [T6027, CVE-2022-34903]

  * gpg: Look up user ID to revoke by UID hash.  [T5936]

  * gpg: Setup the 'usage' filter property for export.  [rG7aabd94b81]

  * gpg,w32: Allow Unicode filenames for iobuf_cancel.  [rG4ee2009083]

  * gpg: Fix reading AEAD preference.  [T6019]

  * gpgsm: New option --compatibility-flags.  [rGf0b373cec9]

  * gpgsm: Rework the PKCS#12 parser to support DFN issued keys.
    [T6037]

  * agent: New option --no-user-trustlist and --sys-trustlist-name.
    [T5990]

  * agent: Pop up dialog window for confirmation, when specified so.
    [T5099]

  * agent: Show "Label:" field of private key when prompt the
    insertion.  [T5986]

  * agent: Handle USAGE information in KEYINFO.  [rG295a6a7591]

  * agent,ssh: Make not-inserted OpenPGP.3 keys available for SSH.
    [T5996]

  * agent,ssh: Support "Use-for-ssh" flag in private key.  [T5985]

  * agent: New field "Prompt" to prevent asking card key insertion.
    [T5987]

  * agent: Support --format=ssh option for READKEY.  [T6012]

  * agent: Add KEYATTR command.  [T5988]

  * agent: Flush before calling ftruncate.  [T6035]

  * agent: Do not consider --min-passphrase-len for the magic wand.
    [rGae2f1f0785]

  * kbx: Fix a race condition which results no status report.  [T5948]

  * scd:openpgp: Fix a segv for cards supporting unknown curves.
    [T5963]

  * scd:p15: Fix reading certificates without length info.

  * scd:p15: Improve the displayed S/N for Technology Nexus cards.

  * scd:openpgp: Add workaround for ECC attribute on Yubikey.  [T5963]

  * scd,piv: Fix status report of KEYPAIRINFO.  [rG64c8786105]

  * scd:nks: Support the Telesec ESIGN application.  [T5219, T4938]

  * scd: Fix use of SCardListReaders for PC/SC.  [T5979]

  * scd: Support automatic card selection for READCERT with keygrip.
    [T6003]

  * scd: Support specifying keygrip for learn command.  [T6002]

  * dirmngr: Fix for Windows when build against GNUTLS.  [T5899]

  * gpg-connect-agent: Add --unbuffered option.

  * gpg-connect-agent: Add a way to cancel an INQUIRE.  [T6010]

  * gpgconf: New short options -V and -X

  Release-info: https://dev.gnupg.org/T5947
  See-also: gnupg-announce/2022q3/000474.html


Noteworthy changes in version 2.3.6 (2022-04-25)
------------------------------------------------

  * gpg: Fix regression in 2.3.5 importing longer keys.  [T5941]

  * gpg: Emit an ERROR status as hint for a bad passphrase.  [T5943]

  * gpg: Avoid NULL-ptr access due to corrupted packets.  [T5940]

  * gpgsm: Improve the "Certificate not found" error message.  [T5821]

  * agent: Pass pattern directly to gpg-check-pattern.  [rGe529c54fe3]

  * scd: Fix hard-coded constant for RSA authentication key OpenPGP.3.
    [rG2848fe4c84]

  Release-info: https://dev.gnupg.org/T5937
  See-also: gnupg-announce/2022q2/000473.html


Noteworthy changes in version 2.3.5 (2022-04-21)
------------------------------------------------

  * gpg: Up to five times faster verification of detached signatures.
    Doubled detached signing speed.  [T5826,rG4e27b9defc,rGf8943ce098]

  * gpg: Threefold decryption speedup for large files.
    [T5820,rGab177eed51]

  * gpg: Nearly double the AES256.OCB encryption speed.  [rG99e2c178c7]

  * gpg: Removed EAX from the preference list.  [rG253fcb9777]

  * gpg: Allow --dearmor to decode all kinds of armor files.
    [rG34ea19aff9]

  * gpg: Remove restrictions for the name part of a user-id.
    [rG8945f1aedf]

  * gpg: Allow decryption of symmetric encrypted data even for
    non-compliant cipher.  [rG8631d4cfe2]

  * gpg,gpgsm: New option --require-compliance.  [rGee013c5350]

  * gpgsm: New option --ignore-cert-with-oid.  [rGe23dc755fa]

  * gpgtar: Create and handle extended headers to support long file
    names.  [T5754]

  * gpgtar: Support file names longer than MAX_PATH on Windows.
    [rG70b738f93f]

  * gpgtar: Use a pipe for decryption and thus avoid memory
    exhaustion.  [rGe5ef5e3b91]

  * gpgtar: New option --with-log.  [rGed53d41b4c]

  * agent: New flag "qual" for the trustlist.txt.  [rG7c8c606061]

  * scdaemon: Add support for GeNUA cards.  [rG0dcc249852]

  * scdaemon: Add --challenge-response option to PK_AUTH for OpenPGP
    cards.  [T5862]

  * dirmngr: Support the use of ECDSA for CRLs and OCSP.
    [rGde87c8e1ea,rG890e9849b5]

  * dirmngr: Map all gnupg.net addresses to the Ubuntu keyserver.
    [T5751]

  * ssh: Return a faked response for the new session-bind extension.
    [T5931]

  * gpgconf: Add command aliases -L -K -R.  [rGec4a1cffb8]

  * gpg: Request keygrip of key to add via command interface.  [T5771]

  * gpg: Print Yubikey version correctly.  [T5787]

  * gpg: Always use version >= 4 to generate key signature.  [T5809]

  * gpg: Fix generating AEAD packet.  [T5853]

  * gpg: Fix version on symmetric encrypted AEAD files if the force
    option is used.  [T5856]

  * gpg: Fix adding the list of ultimate trusted keys.  [T5742]

  * gpgsm: Fix parsing of certain PKCS#12 files.  [T5793]

  * gpgsm: Print diagnostic about CRL problems due to Tor mode.
    [rG137e59a6a5]

  * agent: Use "Created:" field for creation time.  [T5538]

  * scdaemon Fix error handling for a PC/SC reader selected with
    reader-port.  [T5758]

  * scdaemon: Fix DEVINFO with no --watch.  [rGc6dd9ff929]

  * scdaemon: Fix socket resource leak on Windwos.  [T5029]

  * scdaemon: Use extended mode for pkcs#15 already for rsa2048.
    [rG597253ca17]

  * scdaemon: Enhance PASSWD command to accept KEYGRIP optionally.
    [T5862]

  * scdaemon: Fix memory leak in ccid-driver.  [rG8ac92f0e80]

  * tpm: Always use hexgrip when storing a key password.
    [rGaf2fbd9b01]

  * dirmngr: Make WKD lookups work for resolvers not handling SRV
    records.  [T4729]

  * dirmngr: Avoid initial delay on the first keyserver access in
    presence of --no-use-tor.  [rG57d546674d]

  * dirmngr: Workaround for a certain broken LDAP URL.  [rG90caa7ad59]

  * dirmngr: Escape more characters in WKD requests.  [T5902]

  * dirmngr: Suppress error message on trial reading as PEM format.
    [T5531]

  * gpgconf: Fix component table when not building without TPM
    support.  [T5701]

  * gpgconf: Silence warnings from parsing the option files.  [T5874]

  * gpgconf: Do not list ignored options and mark forced options as
    read-only.  [rG42785d7c8a]

  * gpgconf: Tweak the use of the ldapserver option.  [T5801]

  * ssh: Fix adding an ed25519 key with a zero length comment.  [T5794]

  * kbx: Fix searching for FPR20 in version 2 blob.  [T5888]

  * Fix early homedir creation.  [T5895]

  * Improve removing of stale lockfiles under Unix.  [T5884]

  Release-info: https://dev.gnupg.org/T5743
  See-also: gnupg-announce/2022q2/000472.html


Noteworthy changes in version 2.3.4 (2021-12-20)
------------------------------------------------

  * gpg: New option --min-rsa-length.  [rG5f39db70c0]

  * gpg: New option --forbid-gen-key.  [rGc397ba3ac0]

  * gpg: New option --override-compliance-check.  [T5655]

  * gpgconf: New command --show-configs.  [rGa0fb78ee0f]

  * agent,dirmngr,keyboxd: New option --steal-socket.
    [rGb0079ab39d,rGdd708f60d5]

  * gpg: Fix printing of binary notations.  [T5667]

  * gpg: Remove stale ultimately trusted keys from the trustdb.
    [T5685,T5742]

  * gpg: Fix indentation of --print-mds and --print-md sha512.  [T5679]

  * gpg: Emit gpg 2.2 compatible Ed25519 signature.  [T5331]

  * gpgsm: Detect circular chains in --list-chain.  [rG74c5b35062]

  * dirmngr: Make reading resolv.conf more robust.  [T5657]

  * dirmngr: Ask keyservers to provide the key fingerprints.  [T5741]

  * gpgconf: Allow changing gpg's deprecated keyserver option.  [T5462]

  * gpg-wks-server: Fix created file permissions.  [rG60be00b033]

  * scd: Support longer data for ssh-agent authentication with openpgp
    cards.  [T5682]

  * scd: Modify DEVINFO behavior to support looping forever.  [T5359]

  * Support gpgconf.ctl for NetBSD and Solaris.  [T5656,T5671]

  * Silence "Garbled console data" warning under Windows in most
    cases.  [rGe293da3b21]

  * Silence warning about the rootdir under Unices w/o a mounted /proc
    file system.  [T5656]

  * Fix possible build problems about missing include files.  [T5592]

  Release-info: https://dev.gnupg.org/T5654
  See-also: gnupg-announce/2021q4/000468.html


Noteworthy changes in version 2.3.3 (2021-10-12)
------------------------------------------------

  * agent: Fix segv in GET_PASSPHRASE (regression).  [#5577]

  * dirmngr: Fix Let's Encrypt certificate chain validation.  [#5639]

  * gpg: Change default and maximum AEAD chunk size to 4 MiB.
    [ad3dabc9fb]

  * gpg: Print a warning when importing a bad cv25519 secret key.
    [#5464]

  * gpg: Fix --list-packets for undecryptable AEAD packets.  [#5584]

  * gpg: Verify backsigs for v5 keys correctly.  [#5628]

  * keyboxd: Fix checksum computation for no UBID entry on disk.
    [#5573]

  * keyboxd: Fix "invalid object" error with cv448 keys.  [#5609]

  * dirmngr: New option --ignore-cert.  [4b3e9a44b5]

  * agent: Fix calibrate_get_time use of clock_gettime.  [#5623]

  * Silence process spawning diagnostics on Windows. [f2b01025c3]

  * Support a gpgconf.ctl file under Unix and use this for the
    regression tests.  [#5999]

  Release-info: https://dev.gnupg.org/T5565
  See-also: gnupg-announce/2021q4/000466.html


Noteworthy changes in version 2.3.2 (2021-08-24)
------------------------------------------------

  * gpg: Allow fingerprint based lookup with --locate-external-key.
    [ec36eca08c]

  * gpg: Allow decryption w/o public key but with correct card
    inserted.  [50293ec2eb]

  * gpg: Auto import keys specified with --trusted-keys.  [100037ac0f]

  * gpg: Do not use import-clean for LDAP keyserver imports.  [#5387]

  * gpg: Fix mailbox based search via AKL keyserver method.  [4fcfac6feb]

  * gpg: Fix memory corruption with --clearsign introduced with 2.3.1.
    [#5430]

  * gpg: Use a more descriptive prompt for symmetric decryption.
    [6dfae2f402]

  * gpg: Improve speed of secret key listing.  [40da61b89b]

  * gpg: Support keygrip search with traditional keyring.  [#5469]

  * gpg: Let --fetch-key return an exit code on failure.  [#5376]

  * gpg: Emit the NO_SECKEY status again for decryption.  [#5562]

  * gpgsm: Support decryption of password based encryption (pwri).
    [eeb65d3bbd]

  * gpgsm: Support AES-GCM decryption.  [4980fb3c6d]

  * gpgsm: Let --dump-cert --show-cert also print an OpenPGP
    fingerprint.  [52bbdc731f]

  * gpgsm: Fix finding of issuer in use-keyboxd mode.  [6b76693ff5]

  * gpgsm: New option --ldapserver as an alias for --keyserver.
    [89df86157e]

  * agent: Use SHA-256 for SSH fingerprint by default.  [#5434]

  * agent: Fix calling handle_pincache_put.  [#5436]

  * agent: Fix importing protected secret key.  [#5122]

  * agent: Fix a regression in agent_get_shadow_info_type.  [#5393]

  * agent: Add translatable text for Caps Lock hint.  [#4950]

  * agent: New option --pinentry-formatted-passphrase.  [#5517]

  * agent: Add checkpin inquiry for pinentry.  [#5517,#5532]

  * agent: New option --check-sym-passphrase-pattern.  [#5517]

  * agent: Use the sysconfdir for a pattern file.

  * agent: Make QT_QPA_PLATFORMTHEME=qt5ct work for the pinentry.
    [1305baf099]

  * dirmngr: LDAP search by a mailbox now ignores revoked keys.
    [1406f551f1]

  * dirmngr: For KS_SEARCH return the fingerprint also with LDAP.
    [#5441]

  * dirmngr: Allow for non-URL specified ldap keyservers.  [#5405,#5452]

  * dirmngr: New option --ldapserver.  [52cf32ce2f]

  * dirmngr: Fix regression in KS_GET for mail address pattern.
    [#5497]

  * card: New option --shadow for the list command.  [2fce99d73a]

  * tests: Make sure the built keyboxd is used.  [#5406]

  * scd: Fix computing shared secrets for 512 bit curves.
    [9e24f2a45c]

  * scd: Fix unblock PIN by a Reset Code with KDF.  [#5413]

  * scd: Fix PC/SC removed card problem.  [8d81fd7c01]

  * scd: Recover the partial match for PORTSTR for PC/SC.
   [53bdc6288f]

  * scd: Make sure to release the PC/SC context.  [#5416]

  * scd: Fix zero-byte handling in ECC.  [#5163]

  * scd: Fix serial number detection for Yubikey 5.  [#5442]

  * scd: Add basic support for AET JCOP cards.  [544ec7872a]

  * scd: Detect external interference when --pcsc-shared is in use.
    [#5484]

  * scd: Fix access to the list of cards.  [#5524]

  * gpgconf: Do not list a disabled tpm2d.  [#5408]

  * gpgconf: Make runtime changes with different homedir work.
    [31c0aa2ff3]

  * keyboxd: Fix searching for exact mail adddress.  [f79e9540ca]

  * keyboxd: Fix searching with multiple patterns.  [101ba4f18a]

  * gpgtar: Fix file size computation under Windows.  [14e36bdbe1]

  * tools: Extend gpg-check-pattern.  [73c03e0232]

  * wkd: Fix client issue with leading or trailing spaces in
    user-ids.  [b4345f7521]

  * Under Windows add a fallback in case the console can't cope with
    Unicode.  [#5491]

  * Under Windows use LOCAL_APPDATA for the socket directory.  [#5537]

  * Pass XDG_SESSION_TYPE and QT_QPA_PLATFORM envvars to Pinentry.
    [#3659]

  * Change the default keyserver to keyserver.ubuntu.com.  This is a
    temporary change due to the shutdown of the SKS keyserver pools.
    [55b5928099]

  Release-info: https://dev.gnupg.org/T5405
  See-also: gnupg-announce/2021q3/000462.html


Noteworthy changes in version 2.3.1 (2021-04-20)
------------------------------------------------

  * The new configuration file common.conf is now used to enable the
    use of the key database daemon with "use-keyboxd".  Using this
    option in gpg.conf and gpgsm.conf is supported for a transitional
    period.  See doc/example/common.conf for more.

  * gpg: Force version 5 key creation for ed448 and cv448 algorithms.

  * gpg: By default do not use the self-sigs-only option when
    importing from an LDAP keyserver.  [#5387]

  * gpg: Lookup a missing public key of the active card via LDAP.
    [d7e707170f]

  * gpgsm: New command --show-certs.  [51419d6341]

  * scd: Fix CCID driver for SCM SPR332/SPR532.  [#5297]

  * scd: Further improvements for PKCS#15 cards.

  * Fix build problems on Fedora.  [#5389]

  * Fix build problems on macOS.  [#5400]

  * New configure option --with-tss to allow the selection of the TSS
    library.  [93c88d0af3]

  Release-info: https://dev.gnupg.org/T5386
  See-also: gnupg-announce/2021q2/000459.html


Noteworthy changes in version 2.3.0 (2021-04-07)
------------------------------------------------

  * A new experimental key database daemon is provided.  To enable it
    put "use-keyboxd" into gpg.conf and gpgsm.conf.  Keys are stored
    in a SQLite database and make key lookup much faster.

  * New tool gpg-card as a flexible frontend for all types of
    supported smartcards.

  * New option --chuid for gpg, gpgsm, gpgconf, gpg-card, and
    gpg-connect-agent.

  * The gpg-wks-client tool is now installed under bin; a wrapper for
    its old location at libexec is also installed.

  * tpm2d: New daemon to physically bind keys to the local machine.

  * gpg: Switch to ed25519/cv25519 as default public key algorithms.

  * gpg: Verification results now depend on the --sender option and
    the signer's UID subpacket.  [T4735]

  * gpg: Do not use any 64-bit block size cipher algorithm for
    encryption.  Use AES as last resort cipher preference instead of
    3DES.  This can be reverted using --allow-old-cipher-algos.

  * gpg: Support AEAD encryption mode using OCB or EAX.

  * gpg: Support v5 keys and signatures.

  * gpg: Support curve X448 (ed448, cv448).

  * gpg: Allow use of group names in key listings.  [e825aea2ba]

  * gpg: New option --full-timestrings to print date and time.

  * gpg: New option --force-sign-key.  [#4584]

  * gpg: New option --no-auto-trust-new-key.

  * gpg: The legacy key discovery method PKA is no longer supported.
    The command --print-pka-records and the PKA related import and
    export options have been removed.

  * gpg: Support export of Ed448 Secure Shell keys.

  * gpgsm: Add basic ECC support.

  * gpgsm: Support creation of EdDSA certificates.  [#4888]

  * agent: Allow the use of "Label:" in a key file to customize the
    pinentry prompt.  [5388537806]

  * agent: Support ssh-agent extensions for environment variables.
    With a patched version of OpenSSH this avoids the need for the
    "updatestartuptty" kludge.  [224e26cf7b]

  * scd: Improve support for multiple card readers and tokens.

  * scd: Support PIV cards.

  * scd: Support for Rohde&Schwarz Cybersecurity cards.

  * scd: Support Telesec Signature Cards v2.0

  * scd: Support multiple application on certain smartcard.

  * scd: New option --application-priority.

  * scd: New option --pcsc-shared; see man page for important notes.

  * dirmngr: Support a gpgNtds parameter in LDAP keyserver URLs.

  * The symcryptrun tool, a wrapper for the now obsolete external
    Chiasmus tool, has been removed.

  * Full Unicode support for the command line.  [#4398]

  Changes also found in 2.2.27:

  * gpg: Fix regression in 2.2.24 for gnupg_remove function under
    Windows.  [#5230]

  * gpgconf: Fix case with neither local nor global gpg.conf.  [9f37d3e6f3]

  * gpgconf: Fix description of two new options.  [#5221]

  * Build Windows installer without timestamps.  Note that the
    Authenticode signatures still carry a timestamp.

  Changes also found in 2.2.26:

  * gpg: New AKL method "ntds".  [559efd23e9]

  * gpg: Fix --trusted-key with fingerprint arg.  [8a2e5025eb]

  * scd: Fix writing of ECC keys to an OpenPGP card.  [#5163]

  * scd: Make an USB error fix specific to SPR532 readers.  [#5167]

  * dirmngr: With new LDAP keyservers store the new attributes.  Never
    store the useless pgpSignerID.  Fix a long standing bug storing
    some keys on an ldap server.  [0e88c73bc9,e47de85382]

  * dirmngr: Support the new Active Direcory LDAP schema for
    keyservers.  [ac8ece9266]

  * dirmngr: Allow LDAP OpenPGP searches via fingerprint.
    [c75fd75532]

  * dirmngr: Do not block other threads during keyserver LDAP calls.
    [15bfd189c0]

  * Support global configuration files.  [#4788,a028f24136]

  * Fix the iconv fallback handling to UTF-8.  [#5038]

  Changes also found in 2.2.25:

  * scd: Fix regression in 2.2.24 requiring gpg --card-status before
    signing or decrypting.  [#5065]

  * gpgsm: Using Libksba 1.5.0 signatures with a rarely used
    combination of attributes can now be verified.  [#5146]

  Changes also found in 2.2.24:

  * Allow Unicode file names on Windows almost everywhere.  Note that
    it is still not possible to use Unicode strings on the command
    line.  This change also fixes a regression in 2.2.22 related to
    non-ascii file names.  [#5098]

  * Fix localized time printing on Windows.  [#5073]

  * gpg: New command --quick-revoke-sig.  [#5093]

  * gpg: Do not use weak digest algos if selected by recipient
    preference during sign+encrypt.  [4c181d51a6]

  * gpg: Switch to AES256 for symmetric encryption in de-vs mode.
    [166e779634]

  * gpg: Silence weak digest warnings with --quiet.  [#4893]

  * gpg: Print new status line CANCELED_BY_USER for a cancel during
    symmetric encryption.  [f05d1772c4]

  * gpg: Fix the encrypt+sign hash algo preference selection for
    ECDSA.  This is in particular needed for keys created from
    existing smartcard based keys.  [aeed0b93ff]

  * agent: Keep some permissions of private-keys-v1.d.  [#2312]

  * dirmngr: Align sks-keyservers.netCA.pem use between ntbtls and
    gnutls builds.  [e4f3b74c91]

  * dirmngr: Fix the pool keyserver case for a single host in the
    pool.  [72e04b03b1a7]

  * scd: Fix the use case of verify_chv2 by CHECKPIN.  [61aea64b3c]

  * scd: Various improvements to the ccid-driver.  [#4616,#5065]

  * scd: Minor fixes for Yubikey [25bec16d0b]

  * gpgconf: New option --show-versions.

  * w32: Install gpg-check-pattern and example profiles.  Install
    Windows subsystem variant of gpgconf (gpgconf-w32).

  Changes also found in 2.2.23:

  * gpg: Fix a possible segv in the key cleaning code.

  * gpgsm: Fix a minor RFC2253 parser bug.  [#5037]

  * scdaemon: Fix a PIN verify failure on certain OpenPGP card
    implementations.  Regression in 2.2.22.  [#5039]

  Changes also found in 2.2.22:

  * gpg: Change the default key algorithm to rsa3072.

  * gpg: Add regular expression support for Trust Signatures on all
    platforms.  [#4843]

  * gpg: Fix regression in 2.2.21 with non-default --passphrase-repeat
    option.  [#4991]

  * gpg: Ignore --personal-digest-prefs for ECDSA keys.  [#5021]

  * gpgsm: Make rsaPSS a de-vs compliant scheme.

  * gpgsm: Show also the SHA256 fingerprint in key listings.

  * gpgsm: Do not require a default keyring for --gpgconf-list.  [#4867]

  * gpg-agent: Default to extended key format and record the creation
    time of keys.  Add new option --disable-extended-key-format.

  * gpg-agent: Support the WAYLAND_DISPLAY envvar.  [#5016]

  * gpg-agent: Allow using --gpgconf-list even if HOME does not
    exist.  [#4866]

  * gpg-agent: Make the Pinentry work even if the envvar TERM is set
    to the empty string.  [#4137]

  * scdaemon: Add a workaround for Gnuk tokens <= 2.15 which wrongly
    incremented the error counter when using the "verify" command of
    "gpg --edit-key" with only the signature key being present.

  * dirmngr: Better handle systems with disabled IPv6.  [#4977]

  * gpgpslit: Install tool.  It was not installed in the past to avoid
    conflicts with the version installed by GnuPG 1.4.  [#5023]

  * gpgtar: Handle Unicode file names on Windows correctly. [#4083]

  * gpgtar: Make --files-from and --null work as documented.  [#5027]

  * Build the Windows installer with the new Ntbtls 0.2.0 so that TLS
    connections succeed for servers demanding GCM.

  Changes also found in 2.2.21:

  * gpg: Add option --no-include-key-block. [#4856]

  * gpg: Allow for extra padding in ECDH.  [#4908]

  * gpg: Only a single pinentry is shown for symmetric encryption if
    the pinentry supports this.  [#4971]

  * gpg: Print a note if no keys are given to --delete-key.  [#4959]

  * gpg,gpgsm: The ridiculous passphrase quality bar is not anymore
    shown.  [#2103]

  * gpgsm: Certificates without a CRL distribution point are now
    considered valid without looking up a CRL.  The new option
    --enable-issuer-based-crl-check can be used to revert to the
    former behaviour.

  * gpgsm: Support rsaPSS signature verification.  [#4538]

  * gpgsm: Unless CRL checking is disabled lookup a missing issuer
    certificate using the certificate's authorityInfoAccess.  [#4898]

  * gpgsm: Print the certificate's serial number also in decimal
    notation.

  * gpgsm: Fix possible NULL-deref in messages of --gen-key.  [#4895]

  * scd: Support the CardOS 5 based D-Trust Card 3.1.

  * dirmngr: Allow http URLs with "LOOKUP --url".

  * wkd: Take name of sendmail from configure.  Fixes an OpenBSD
    specific bug.  [#4886]

  * Support a command history file in gpg-card and gpg-connect-agent.

  Changes also found in 2.2.20:

  * In constrast to 2.2 no explicit protection against overflow of the
    error counter is needed because libgpg-error takes care of this.

  * gpg: Make really sure that --verify-files always returns an error.

  * gpg: Fix key listing --with-secret if a pattern is given.  [#4061]

  * gpg: Fix detection of certain keys used as default-key.  [#4810]

  * gpg: Fix default-key selection when a card is available.  [#4850]

  * gpg: Fix key expiration and key usage for keys created with a
    creation date of zero.  [4670]

  * gpgsm: Fix import of some CR,LF terminated certificates.  [#4847]

  * gpg: New options --include-key-block and --auto-key-import to
    allow encrypted replies after an initial signed message.  [#4856]

  * gpg: Allow the use of a fingerprint with --trusted-key. [#4855]

  * gpg: New property "fpr" for use by --export-filter.

  * scdaemon: Disable the pinpad if a KDF DO is used.  [#4832]

  * dirmngr: Improve finding OCSP certificates.  [#4536]

  * Avoid build problems with LTO or gcc-10. [#4831]

  Changes also found in 2.2.19:

  * gpg: Only in 2.2.19; not requird in master: Fix double free when
    decrypting for hidden recipients.  Regression in 2.2.18.  [#4762].

  * gpg: Use auto-key-locate for encryption even for mail addresses
    given with angle brackets.  [#4726]

  * gpgsm: Add special case for certain expired intermediate
    certificates.  [#4696]

  Changes also found in 2.2.18:

  * gpg: Changed the way keys are detected on a smartcards; this
    allows the use of non-OpenPGP cards.  In the case of a not very
    likely regression the new option --use-only-openpgp-card is
    available.  [#4681]

  * gpg: The commands --full-gen-key and --quick-gen-key now allow
    direct key generation from supported cards.  [#4681]

  * gpg: Prepare against chosen-prefix SHA-1 collisions in key
    signatures.  This change removes all SHA-1 based key signature
    from the web-of-trust.  Note that this includes all key signature
    created with dsa1024 keys.  (Version 2.2.18 limits this to key
    signatures newer than 2019-01-19.)  The new option
    --allow-weak-key-signatues can be used to override the new and
    safer behaviour.  [#4755,CVE-2019-14855]

  * gpg: Improve performance for import of large keyblocks.  [#4592]

  * gpg: Implement a keybox compression run.  [#4644]

  * gpg: Show warnings from dirmngr about redirect and certificate
    problems (details require --verbose as usual).

  * gpg: Allow to pass the empty string for the passphrase if the
    '--passphase=' syntax is used.  [#4633]

  * gpg: Fix printing of the KDF object attributes.

  * gpg: Avoid surprises with --locate-external-key and certain
    --auto-key-locate settings.  [#4662]

  * gpg: Improve selection of best matching key.  [#4713]

  * gpg: Delete key binding signature when deleting a subkey.
    [#4665,#4457]

  * gpg: Fix a potential loss of key signatures during import with
    self-sigs-only active.  [#4628]

  * gpg: Silence "marked as ultimately trusted" diagnostics if
    option --quiet is used.  [#4634]

  * gpg: Silence some diagnostics during in key listsing even with
    option --verbose.  [#4627]

  * gpg, gpgsm: Change parsing of agent's pkdecrypt results.  [#4652]

  * gpgsm: Support AES-256 keys.

  * gpgsm: Fix a bug in triggering a keybox compression run if
    --faked-system-time is used.

  * dirmngr: System CA certificates are no longer used for the SKS
    pool if GNUTLS instead of NTBTLS is used as TLS library.  [#4594]

  * dirmngr: On Windows detect usability of IPv4 and IPv6 interfaces
    to avoid long timeouts.  [#4165]

  * scd: Fix BWI value for APDU level transfers to make Gemalto Ezio
    Shield and Trustica Cryptoucan work.  [#4654,#4566]

  * wkd: gpg-wks-client --install-key now installs the required policy
    file.

  Changes also found in 2.2.17:

  * gpg: Ignore all key-signatures received from keyservers.  This
    change is required to mitigate a DoS due to keys flooded with
    faked key-signatures.  The old behaviour can be achieved by adding
      keyserver-options no-self-sigs-only,no-import-clean
    to your gpg.conf.  [#4607]

  * gpg: If an imported keyblocks is too large to be stored in the
    keybox (pubring.kbx) do not error out but fallback to an import
    using the options "self-sigs-only,import-clean".  [#4591]

  * gpg: New command --locate-external-key which can be used to
    refresh keys from the Web Key Directory or via other methods
    configured with --auto-key-locate.

  * gpg: New import option "self-sigs-only".

  * gpg: In --auto-key-retrieve prefer WKD over keyservers.  [#4595]

  * dirmngr: Support the "openpgpkey" subdomain feature from
    draft-koch-openpgp-webkey-service-07. [#4590].

  * dirmngr: Add an exception for the "openpgpkey" subdomain to the
    CSRF protection.  [#4603]

  * dirmngr: Fix endless loop due to http errors 503 and 504.  [#4600]

  * dirmngr: Fix TLS bug during redirection of HKP requests.  [#4566]

  * gpgconf: Fix a race condition when killing components.  [#4577]

  Changes also found in 2.2.16:

  * gpg,gpgsm: Fix deadlock on Windows due to a keybox sharing
    violation.  [#4505]

  * gpg: Allow deletion of subkeys with --delete-key.  This finally
    makes the bang-suffix work as expected for that command.  [#4457]

  * gpg: Replace SHA-1 by SHA-256 in self-signatures when updating
    them with --quick-set-expire or --quick-set-primary-uid. [#4508]

  * gpg: Improve the photo image viewer selection.  [#4334]

  * gpg: Fix decryption with --use-embedded-filename.  [#4500]

  * gpg: Remove hints on using the --keyserver option.  [#4512]

  * gpg: Fix export of certain secret keys with comments.  [#4490]

  * gpg: Reject too long user-ids in --quick-gen-key.  [#4532]

  * gpg: Fix a double free in the best key selection code.  [#4462]

  * gpg: Fix the key generation dialog for switching back from EdDSA
    to ECDSA.

  * gpg: Use AES-192 with SHA-384 to comply with RFC-6637.

  * gpg: Use only the addrspec from the Signer's UID subpacket to
    mitigate a problem with another implementation.

  * gpg: Skip invalid packets during a keyring listing and sync
    diagnostics with the output.

  * gpgsm: Avoid confusing diagnostic when signing with the default
    key.  [#4535]

  * agent: Do not delete any secret key in --dry-run mode.

  * agent: Fix failures on 64 bit big-endian boxes related to URIs in
    a keyfile.  [#4501]

  * agent: Stop scdaemon after a reload with disable-scdaemon newly
    configured.  [#4326]

  * dirmngr: Improve caching algorithm for WKD domains.

  * dirmngr: Support other hash algorithms than SHA-1 for OCSP.  [#3966]

  * gpgconf: Make --homedir work for --launch.  [#4496]

  * gpgconf: Before --launch check for a valid config file.  [#4497]

  * wkd: Do not import more than 5 keys from one WKD address.

  * wkd: Accept keys which are stored in armored format in the
    directory.

  * The installer for Windows now comes with signed binaries.

  Changes also found in 2.2.15:

  * sm: Fix --logger-fd and --status-fd on Windows for non-standard
    file descriptors.

  * sm: Allow decryption even if expired keys are configured.  [#4431]

  * agent: Change command KEYINFO to print ssh fingerprints with other
    hash algos.

  * dirmngr: Fix build problems on Solaris due to the use of reserved
    symbol names.  [#4420]

  * wkd: New commands --print-wkd-hash and --print-wkd-url for
    gpg-wks-client.

  Changes also found in 2.2.14:

  * gpg: Allow import of PGP desktop exported secret keys.  Also avoid
   importing secret keys if the secret keyblock is not valid.  [#4392]

  * gpg: Make invalid primary key algo obvious in key listings.

  * sm: Do not mark a certificate in a key listing as de-vs compliant
    if its use for a signature will not be possible.

  * sm: Fix certificate creation with key on card.

  * sm: Create rsa3072 bit certificates by default.

  * sm: Print Yubikey attestation extensions with --dump-cert.

  * agent: Fix cancellation handling for scdaemon.

  * agent: Support --mode=ssh option for CLEAR_PASSPHRASE.  [#4340]

  * scd: Fix flushing of the CA-FPR DOs in app-openpgp.

  * scd: Avoid a conflict error with the "undefined" app.

  * dirmngr: Add CSRF protection exception for protonmail.

  * dirmngr: Fix build problems with gcc 9 in libdns.

  * gpgconf: New option --show-socket for use with --launch.

  * gpgtar: Make option -C work for archive creation.

  Changes also found in 2.2.13:

  * gpg: Implement key lookup via keygrip (using the & prefix).

  * gpg: Allow generating Ed25519 key from existing key.

  * gpg: Emit an ERROR status line if no key was found with -k.

  * gpg: Stop early when trying to create a primary Elgamal key.  [#4329]

  * gpgsm: Print the card's key algorithms along with their keygrips
    in interactive key generation.

  * agent: Clear bogus pinentry cache in the error case.  [#4348]

  * scd: Support "acknowledge button" feature.

  * scd: Fix for USB INTERRUPT transfer.  [#4308]

  * wks: Do no use compression for the the encrypted challenge and
    response.

  Changes also found in 2.2.12:

  * tools: New commands --install-key and --remove-key for
    gpg-wks-client.  This allows one to prepare a Web Key Directory on a
    local file system for later upload to a web server.

  * gpg: New --list-option "show-only-fpr-mbox".  This makes the use
    of the new gpg-wks-client --install-key command easier on Windows.

  * gpg: Improve processing speed when --skip-verify is used.

  * gpg: Fix a bug where a LF was accidentally written to the console.

  * gpg: --card-status now shows whether a card has the new KDF
    feature enabled.

  * agent: New runtime option --s2k-calibration=MSEC.  New configure
    option --with-agent-s2k-calibration=MSEC.  [#3399]

  * dirmngr: Try another keyserver from the pool on receiving a 502,
    503, or 504 error.  [#4175]

  * dirmngr: Avoid possible CSRF attacks via http redirects.  A HTTP
    query will not anymore follow a 3xx redirect unless the Location
    header gives the same host.  If the host is different only the
    host and port is taken from the Location header and the original
    path and query parts are kept.

  * dirmngr: New command FLUSHCRL to flush all CRLS from disk and
    memory.  [#3967]

  * New simplified Chinese translation (zh_CN).

  Changes also found in 2.2.11:

  * gpgsm: Fix CRL loading when intermediate certificates are not yet
    trusted.

  * gpgsm: Fix an error message about the digest algo.  [#4219]

  * gpg: Fix a wrong warning due to new sign usage check introduced
    with 2.2.9.  [#4014]

  * gpg: Print the "data source" even for an unsuccessful keyserver
    query.

  * gpg: Do not store the TOFU trust model in the trustdb.  This
    allows one to enable or disable a TOFO model without triggering a
    trustdb rebuild.  [#4134]

  * scd: Fix cases of "Bad PIN" after using "forcesig".  [#4177]

  * agent: Fix possible hang in the ssh handler.  [#4221]

  * dirmngr: Tack the unmodified mail address to a WKD request.  See
    commit a2bd4a64e5b057f291a60a9499f881dd47745e2f for details.

  * dirmngr: Tweak diagnostic about missing LDAP server file.

  * dirmngr: In verbose mode print the OCSP responder id.

  * dirmngr: Fix parsing of the LDAP port.  [#4230]

  * wks: Add option --directory/-C to the server.  Always build the
    server on Unix systems.

  * wks: Add option --with-colons to the client.  Support sites which
    use the policy file instead of the submission-address file.

  * Fix EBADF when gpg et al. are called by broken CGI scripts.

  * Fix some minor memory leaks and bugs.

  Changes also found in 2.2.10:

  * gpg: Refresh expired keys originating from the WKD.  [#2917]

  * gpg: Use a 256 KiB limit for a WKD imported key.

  * gpg: New option --known-notation.  [#4060]

  * scd: Add support for the Trustica Cryptoucan reader.

  * agent: Speed up starting during on-demand launching.  [#3490]

  * dirmngr: Validate SRV records in WKD queries.

  Changes also found in 2.2.9:

  * dirmngr: Fix recursive resolver mode and other bugs in the libdns
    code.  [#3374,#3803,#3610]

  * dirmngr: When using libgpg-error 1.32 or later a GnuPG build with
    NTBTLS support (e.g. the standard Windows installer) does not
    anymore block for dozens of seconds before returning data.

  * gpg: Fix bug in --show-keys which actually imported revocation
    certificates.  [#4017]

  * gpg: Ignore too long user-ID and comment packets.  [#4022]

  * gpg: Fix crash due to bad German translation.  Improved printf
    format compile time check.

  * gpg: Handle missing ISSUER sub packet gracefully in the presence of
    the new ISSUER_FPR.  [#4046]

  * gpg: Allow decryption using several passphrases in most cases.
    [#3795,#4050]

  * gpg: Command --show-keys now enables the list options
    show-unusable-uids, show-unusable-subkeys, show-notations and
    show-policy-urls by default.

  * gpg: Command --show-keys now prints revocation certificates. [#4018]

  * gpg: Add revocation reason to the "rev" and "rvs" records of the
    option --with-colons.  [#1173]

  * gpg: Export option export-clean does now remove certain expired
    subkeys; export-minimal removes all expired subkeys.  [#3622]

  * gpg: New "usage" property for the drop-subkey filters.  [#4019]

  Changes also found in 2.2.8:

  * gpg: Decryption of messages not using the MDC mode will now lead
    to a hard failure even if a legacy cipher algorithm was used.  The
    option --ignore-mdc-error can be used to turn this failure into a
    warning.  Take care: Never use that option unconditionally or
    without a prior warning.

  * gpg: The MDC encryption mode is now always used regardless of the
    cipher algorithm or any preferences.  For testing --rfc2440 can be
    used to create a message without an MDC.

  * gpg: Sanitize the diagnostic output of the original file name in
    verbose mode.  [#4012,CVE-2018-12020]

  * gpg: Detect suspicious multiple plaintext packets in a more
    reliable way.  [#4000]

  * gpg: Fix the duplicate key signature detection code.  [#3994]

  * gpg: The options --no-mdc-warn, --force-mdc, --no-force-mdc,
    --disable-mdc and --no-disable-mdc have no more effect.

  * gpg: New command --show-keys.

  * agent: Add DBUS_SESSION_BUS_ADDRESS and a few other envvars to the
    list of startup environment variables.  [#3947]

  Changes also found in 2.2.7:

  * gpg: New option --no-symkey-cache to disable the passphrase cache
    for symmetrical en- and decryption.

  * gpg: The ERRSIG status now prints the fingerprint if that is part
    of the signature.

  * gpg: Relax emitting of FAILURE status lines

  * gpg: Add a status flag to "sig" lines printed with --list-sigs.

  * gpg: Fix "Too many open files" when using --multifile.  [#3951]

  * ssh: Return an error for unknown ssh-agent flags.  [#3880]

  * dirmngr: Fix a regression since 2.1.16 which caused corrupted CRL
    caches under Windows.  [#2448,#3923]

  * dirmngr: Fix a CNAME problem with pools and TLS.  Also use a fixed
    mapping of keys.gnupg.net to sks-keyservers.net.  [#3755]

  * dirmngr: Try resurrecting dead hosts earlier (from 3 to 1.5 hours).

  * dirmngr: Fallback to CRL if no default OCSP responder is configured.

  * dirmngr: Implement CRL fetching via https.  Here a redirection to
    http is explicitly allowed.

  * dirmngr: Make LDAP searching and CRL fetching work under Windows.
    This stopped working with 2.1.  [#3937]

  * agent,dirmngr: New sub-command "getenv" for "getinfo" to ease
    debugging.

  Changes also found in 2.2.6:

  * gpg,gpgsm: New option --request-origin to pretend requests coming
    from a browser or a remote site.

  * gpg: Fix race condition on trustdb.gpg updates due to too early
    released lock.  [#3839]

  * gpg: Emit FAILURE status lines in almost all cases.  [#3872]

  * gpg: Implement --dry-run for --passwd to make checking a key's
    passphrase straightforward.

  * gpg: Make sure to only accept a certification capable key for key
    signatures.  [#3844]

  * gpg: Better user interaction in --card-edit for the factory-reset
    sub-command.

  * gpg: Improve changing key attributes in --card-edit by adding an
    explicit "key-attr" sub-command.  [#3781]

  * gpg: Print the keygrips in the --card-status.

  * scd: Support KDF DO setup.  [#3823]

  * scd: Fix some issues with PC/SC on Windows.  [#3825]

  * scd: Fix suspend/resume handling in the CCID driver.

  * agent: Evict cached passphrases also via a timer.  [#3829]

  * agent: Use separate passphrase caches depending on the request
    origin.  [#3858]

  * ssh: Support signature flags.  [#3880]

  * dirmngr: Handle failures related to missing IPv6 support
    gracefully.  [#3331]

  * Fix corner cases related to specified home directory with
    drive letter on Windows.  [#3720]

  * Allow the use of UNC directory names as homedir.  [#3818]

  Changes also found in 2.2.5:

  * gpg: Allow the use of the "cv25519" and "ed25519" short names in
    addition to the canonical curve names in --batch --gen-key.

  * gpg: Make sure to print all secret keys with option --list-only
    and --decrypt.  [#3718]

  * gpg: Fix the use of future-default with --quick-add-key for
    signing keys.  [#3747]

  * gpg: Select a secret key by checking availability under gpg-agent.
    [#1967]

  * gpg: Fix reversed prompt texts for --only-sign-text-ids.  [#3787]

  * gpg,gpgsm: Fix detection of bogus keybox blobs on 32 bit systems.
    [#3770]

  * gpgsm: Fix regression since 2.1 in --export-secret-key-raw which
    got $d mod (q-1)$ wrong.  Note that most tools automatically fixup
    that parameter anyway.

  * ssh: Fix a regression in getting the client'd PID on *BSD and
    macOS.

  * scd: Support the KDF Data Object of the OpenPGP card 3.3.  [#3152]

  * scd: Fix a regression in the internal CCID driver for certain card
    readers.  [#3508]

  * scd: Fix a problem on NetBSD killing scdaemon on gpg-agent
    shutdown.  [#3778]

  * dirmngr: Improve returned error description on failure of DNS
    resolving.  [#3756]

  * wks: Implement command --install-key for gpg-wks-server.

  * Add option STATIC=1 to the Speedo build system to allow a build
    with statically linked versions of the core GnuPG libraries.  Also
    use --enable-wks-tools by default by Speedo builds for Unix.

  Changes also found in 2.2.4:

  * gpg: Change default preferences to prefer SHA512.

  * gpg: Print a warning when more than 150 MiB are encrypted using a
    cipher with 64 bit block size.

  * gpg: Print a warning if the MDC feature has not been used for a
    message.

  * gpg: Fix regular expression of domain addresses in trust
    signatures. [#2923]

  * agent: New option --auto-expand-secmem to help with high numbers
    of concurrent connections.  Requires libgcrypt 1.8.2 for having
    an effect.  [#3530]

  * dirmngr: Cache responses of WKD queries.

  * gpgconf: Add option --status-fd.

  * wks: Add commands --check and --remove-key to gpg-wks-server.

  * Increase the backlog parameter of the daemons to 64 and add
    option --listen-backlog.

  * New configure option --enable-run-gnupg-user-socket to first try a
    socket directory which is not removed by systemd at session end.

  Changes also found in 2.2.3:

  * gpgsm: Fix initial keybox creation on Windows. [#3507]

  * dirmngr: Fix crash in case of a CRL loading error. [#3510]

  * Fix the name of the Windows registry key. [Git#4f5afaf1fd]

  * gpgtar: Fix wrong behaviour of --set-filename. [#3500]

  * gpg: Silence AKL retrieval messages. [#3504]

  * agent: Use clock or clock_gettime for calibration. [#3056]

  * agent: Improve robustness of the shutdown pending
    state. [Git#7ffedfab89]

  Changes also found in 2.2.2:

  * gpg: Avoid duplicate key imports by concurrently running gpg
    processes. [#3446]

  * gpg: Fix creating on-disk subkey with on-card primary key. [#3280]

  * gpg: Fix validity retrieval for multiple keyrings. [Debian#878812]

  * gpg: Fix --dry-run and import option show-only for secret keys.

  * gpg: Print "sec" or "sbb" for secret keys with import option
    import-show. [#3431]

  * gpg: Make import less verbose. [#3397]

  * gpg: Add alias "Key-Grip" for parameter "Keygrip" and new
    parameter "Subkey-Grip" to unattended key generation.  [#3478]

  * gpg: Improve "factory-reset" command for OpenPGP cards.  [#3286]

  * gpg: Ease switching Gnuk tokens into ECC mode by using the magic
    keysize value 25519.

  * gpgsm: Fix --with-colon listing in crt records for fields > 12.

  * gpgsm: Do not expect X.509 keyids to be unique.  [#1644]

  * agent: Fix stuck Pinentry when using --max-passphrase-days. [#3190]

  * agent: New option --s2k-count.  [#3276 (workaround)]

  * dirmngr: Do not follow https-to-http redirects. [#3436]

  * dirmngr: Reduce default LDAP timeout from 100 to 15 seconds. [#3487]

  * gpgconf: Ignore non-installed components for commands
    --apply-profile and --apply-defaults. [#3313]

  * Add configure option --enable-werror.  [#2423]

  Changes also found in 2.2.1:

  * gpg: Fix formatting of the user id in batch mode key generation
    if only "name-email" is given.

  * gpgv: Fix annoying "not suitable for" warnings.

  * wks: Convey only the newest user id to the provider.  This is the
    case if different names are used with the same addr-spec.

  * wks: Create a complying user id for provider policy mailbox-only.

  * wks: Add workaround for posteo.de.

  * scd: Fix the use of large ECC keys with an OpenPGP card.

  * dirmngr: Use system provided root certificates if no specific HKP
    certificates are configured.  If build with GNUTLS, this was
    already the case.

  Release-info: https://dev.gnupg.org/T5343
  See-also: gnupg-announce/2021q2/000458.html


Release dates of 2.2 versions
-----------------------------

Version 2.2.42 (2023-11-28) https://dev.gnupg.org/T6307
Version 2.2.41 (2022-12-09) https://dev.gnupg.org/T6280
Version 2.2.40 (2022-10-10) https://dev.gnupg.org/T6181
Version 2.2.39 (2022-09-02) https://dev.gnupg.org/T6175
Version 2.2.38 (2022-09-01) https://dev.gnupg.org/T6159
Version 2.2.37 (2022-08-24) https://dev.gnupg.org/T6105
Version 2.2.36 (2022-07-06) https://dev.gnupg.org/T5949
Version 2.2.35 (2022-04-25) https://dev.gnupg.org/T5928
Version 2.2.34 (2022-02-07) https://dev.gnupg.org/T5703
Version 2.2.33 (2021-11-23) https://dev.gnupg.org/T5641
Version 2.2.32 (2021-10-06) https://dev.gnupg.org/T5601
Version 2.2.31 (2021-09-15) https://dev.gnupg.org/T5571
Version 2.2.30 (2021-08-26) https://dev.gnupg.org/T5519
Version 2.2.29 (2021-07-04) https://dev.gnupg.org/T5498
Version 2.2.28 (2021-06-10) https://dev.gnupg.org/T5482
Version 2.2.27 (2021-01-11) https://dev.gnupg.org/T5234
Version 2.2.26 (2020-12-21) https://dev.gnupg.org/T5153
Version 2.2.25 (2020-11-23) https://dev.gnupg.org/T5140
Version 2.2.24 (2020-11-17) https://dev.gnupg.org/T5052
Version 2.2.23 (2020-09-03) https://dev.gnupg.org/T5045
Version 2.2.22 (2020-08-27) https://dev.gnupg.org/T5030
Version 2.2.21 (2020-07-09) https://dev.gnupg.org/T4897
Version 2.2.20 (2020-03-20) https://dev.gnupg.org/T4860
Version 2.2.19 (2019-12-07) https://dev.gnupg.org/T4768
Version 2.2.18 (2019-11-25) https://dev.gnupg.org/T4684
Version 2.2.17 (2019-07-09) https://dev.gnupg.org/T4606
Version 2.2.16 (2019-05-28) https://dev.gnupg.org/T4509
Version 2.2.15 (2019-03-26) https://dev.gnupg.org/T4434
Version 2.2.14 (2019-03-19) https://dev.gnupg.org/T4412
Version 2.2.13 (2019-02-12) https://dev.gnupg.org/T4290
Version 2.2.12 (2018-12-14) https://dev.gnupg.org/T4289
Version 2.2.11 (2018-11-06) https://dev.gnupg.org/T4233
Version 2.2.10 (2018-08-30) https://dev.gnupg.org/T4112
Version 2.2.9  (2018-07-12) https://dev.gnupg.org/T4036
Version 2.2.8  (2018-06-08)
Version 2.2.7  (2018-05-02)
Version 2.2.6  (2018-04-09)
Version 2.2.5  (2018-02-22)
Version 2.2.4  (2017-12-20)
Version 2.2.3  (2017-11-20)
Version 2.2.2  (2017-11-07)
Version 2.2.1  (2017-09-19)


Noteworthy changes in version 2.2.0 (2017-08-28)
------------------------------------------------

  This is the new long term stable branch.  This branch will only see
  bug fixes and no new features.

  * gpg: Reverted change in 2.1.23 so that --no-auto-key-retrieve is
    again the default.

  * Fixed a few minor bugs.

  See-also: gnupg-announce/2017q3/000413.html


Noteworthy changes in version 2.1.23 (2017-08-09)
-------------------------------------------------

  * gpg: "gpg" is now installed as "gpg" and not anymore as "gpg2".
    If needed, the new configure option --enable-gpg-is-gpg2 can be
    used to revert this.

  * gpg: Options --auto-key-retrieve and --auto-key-locate "local,wkd"
    are now used by default.  Note: this enables keyserver and Web Key
    Directory operators to notice when a signature from a locally
    non-available key is being verified for the first time or when
    you intend to encrypt to a mail address without having the key
    locally.  This new behaviour will eventually make key discovery
    much easier and mostly automatic.  Disable this by adding
      no-auto-key-retrieve
      auto-key-locate local
    to your gpg.conf.

  * agent: Option --no-grab is now the default.  The new option --grab
    allows one to revert this.

  * gpg: New import option "show-only".

  * gpg: New option --disable-dirmngr to entirely disable network
    access for gpg.

  * gpg,gpgsm: Tweaked DE-VS compliance behaviour.

  * New configure flag --enable-all-tests to run more extensive tests
    during "make check".

  * gpgsm: The keygrip is now always printed in colon mode as
    documented in the man page.

  * Fixed connection timeout problem under Windows.

  See-also: gnupg-announce/2017q3/000412.html


Noteworthy changes in version 2.1.22 (2017-07-28)
-------------------------------------------------

  * gpg: Extend command --quick-set-expire to allow for setting the
    expiration time of subkeys.

  * gpg: By default try to repair keys during import.  New sub-option
    no-repair-keys for --import-options.

  * gpg,gpgsm: Improved checking and reporting of DE-VS compliance.

  * gpg: New options --key-origin and --with-key-origin.  Store the
    time of the last key update from keyservers, WKD, or DANE.

  * agent: New option --ssh-fingerprint-digest.

  * dimngr: Lower timeouts on keyserver connection attempts and made
    it configurable.

  * dirmngr: Tor will now automatically be detected and used.  The
    option --no-use-tor disables Tor detection.

  * dirmngr: Now detects a changed /etc/resolv.conf.

  * agent,dirmngr: Initiate shutdown on removal of the GnuPG home
    directory.

  * gpg: Avoid caching passphrase for failed symmetric encryption.

  * agent: Support for unprotected ssh keys.

  * dirmngr: Fixed name resolving on systems using only v6
    nameservers.

  * dirmngr: Allow the use of TLS over http proxies.

  * w32: Change directory of the daemons after startup.

  * wks: New man pages for client and server.

  * Many other bug fixes.

  See-also: gnupg-announce/2017q3/000411.html


Noteworthy changes in version 2.1.21 (2017-05-15)
-------------------------------------------------

  * gpg,gpgsm: Fix corruption of old style keyring.gpg files.  This
    bug was introduced with version 2.1.20.  Note that the default
    pubring.kbx format was not affected.

  * gpg,dirmngr: Removed the skeleton config file support.  The
    system's standard methods for providing default configuration
    files should be used instead.

  * w32: The Windows installer now allows installation of GnuPG
    without Administrator permissions.

  * gpg: Fixed import filter property match bug.

  * scd: Removed Linux support for Cardman 4040 PCMCIA reader.

  * scd: Fixed some corner case bugs in resume/suspend handling.

  * Many minor bug fixes and code cleanup.

  See-also: gnupg-announce/2017q2/000405.html


Noteworthy changes in version 2.1.20 (2017-04-03)
-------------------------------------------------

  * gpg: New properties 'expired', 'revoked', and 'disabled' for the
    import and export filters.

  * gpg: New command --quick-set-primary-uid.

  * gpg: New compliance field for the --with-colon key listing.

  * gpg: Changed the key parser to generalize the processing of local
    meta data packets.

  * gpg: Fixed assertion failure in the TOFU trust model.

  * gpg: Fixed exporting of zero length user ID packets.

  * scd: Improved support for multiple readers.

  * scd: Fixed timeout handling for key generation.

  * agent: New option --enable-extended-key-format.

  * dirmngr: Do not add a keyserver to a new dirmngr.conf.  Dirmngr
    uses a default keyserver.

  * dimngr: Do not treat TLS warning alerts as severe error when
    building with GNUTLS.

  * dirmngr: Actually take /etc/hosts in account.

  * wks: Fixed client problems on Windows.  Published keys are now set
    to world-readable.

  * tests: Fixed creation of temporary directories.

  * A socket directory for a non standard GNUGHOME is now created on
    the fly under /run/user.  Thus "gpgconf --create-socketdir" is now
    optional.  The use of "gpgconf --remove-socketdir" to clean up
    obsolete socket directories is however recommended to avoid
    cluttering /run/user with useless directories.

  * Fixed build problems on some platforms.

  See-also: gnupg-announce/2017q2/000404.html


Noteworthy changes in version 2.1.19 (2017-03-01)
-------------------------------------------------

  * gpg: Print a warning if Tor mode is requested but the Tor daemon
    is not running.

  * gpg: New status code DECRYPTION_KEY to print the actual private
    key used for decryption.

  * gpgv: New options --log-file and --debug.

  * gpg-agent: Revamp the prompts to ask for card PINs.

  * scd: Support for multiple card readers.

  * scd: Removed option --debug-disable-ticker.  Ticker is used
    only when it is required to watch removal of device/card.

  * scd: Improved detection of card inserting and removal.

  * dirmngr: New option --disable-ipv4.

  * dirmngr: New option --no-use-tor to explicitly disable the use of
    Tor.

  * dirmngr: The option --allow-version-check is now required even if
    the option --use-tor is also used.

  * dirmngr: Handle a missing nsswitch.conf gracefully.

  * dirmngr: Avoid PTR lookups for keyserver pools.  The are only done
    for the debug command "keyserver --hosttable".

  * dirmngr: Rework the internal certificate cache to support classes
    of certificates.  Load system provided certificates on startup.
    Add options --tls, --no-crl, and --systrust to the "VALIDATE"
    command.

  * dirmngr: Add support for the ntbtls library.

  * wks: Create mails with a "WKS-Phase" header.  Fix detection of
    Draft-2 mode.

  * The Windows installer is now build with limited TLS support.

  * Many other bug fixes and new regression tests.

  See-also: gnupg-announce/2017q1/000402.html


Noteworthy changes in version 2.1.18 (2017-01-23)
-------------------------------------------------

  * gpg: Remove bogus subkey signature while cleaning a key (with
    export-clean, import-clean, or --edit-key's sub-command clean)

  * gpg: Allow freezing the clock with --faked-system-time.

  * gpg: New --export-option flag "backup", new --import-option flag
    "restore".

  * gpg-agent: Fixed long delay due to a regression in the progress
    callback code.

  * scd: Lots of code cleanup and internal changes.

  * scd: Improved the internal CCID driver.

  * dirmngr: Fixed problem with the DNS glue code (removal of the
    trailing dot in domain names).

  * dirmngr: Make sure that Tor is actually enabled after changing the
    conf file and sending SIGHUP or "gpgconf --reload dirmngr".

  * dirmngr: Fixed Tor access to IPv6 addresses.  Note that current
    versions of Tor may require that the flag "IPv6Traffic" is used
    with the option "SocksPort" in torrc to actually allow IPv6
    traffic.

  * dirmngr: Fixed HKP for literally given IPv6 addresses.

  * dirmngr: Enabled reverse DNS lookups via Tor.

  * dirmngr: Added experimental SRV record lookup for WKD.
    See commit 88dc3af3d4ae1afe1d5e136bc4c38bc4e7d4cd10 for details.

  * dirmngr: For HKP use "pgpkey-hkps" and "pgpkey-hkp" in SRV record
    lookups.  Avoid SRV record lookup when a port is explicitly
    specified.  This fixes a regression from the 1.4 and 2.0 behavior.

  * dirmngr: Gracefully handle a missing /etc/nsswitch.conf.  Ignore
    negation terms (e.g. "[!UNAVAIL=return]" instead of bailing out.

  * dirmngr: Better debug output for flags "dns" and "network".

  * dirmngr: On reload mark all known HKP servers alive.

  * gpgconf: Allow keyword "all" for --launch, --kill, and --reload.

  * tools: gpg-wks-client now ignores a missing policy file on the
    server.

  * Avoid unnecessary ambiguity error message in the option parsing.

  * Further improvements of the regression test suite.

  * Fixed building with --disable-libdns configure option.

  * Fixed a crash running the tests on 32 bit architectures.

  * Fixed spurious failures on BSD system in the spawn functions.
    This affected for example gpg-wks-client and gpgconf.

  See-also: gnupg-announce/2017q1/000401.html


Noteworthy changes in version 2.1.17 (2016-12-20)
-------------------------------------------------

 * gpg: By default new keys expire after 2 years.

 * gpg: New command --quick-set-expire to conveniently change the
   expiration date of keys.

 * gpg: Option and command names have been changed for easier
   comprehension.  The old names are still available as aliases.

 * gpg: Improved the TOFU trust model.

 * gpg: New option --default-new-key-algo.

 * scd: Support OpenPGP card V3 for RSA.

 * dirmngr: Support for the ADNS library has been removed.  Instead
   William Ahern's Libdns is now source included and used on all
   platforms.  This enables Tor support on all platforms.  The new
   option --standard-resolver can be used to disable this code at
   runtime.  In case of build problems the new configure option
   --disable-libdns can be used to build without Libdns.

 * dirmngr: Lazily launch ldap reaper thread.

 * tools: New options --check and --status-fd for gpg-wks-client.

 * The UTF-8 byte order mark is now skipped when reading conf files.

 * Fixed many bugs and regressions.

 * Major improvements to the test suite.  For example it is possible
   to run the external test suite of GPGME.

 See-also: gnupg-announce/2016q4/000400.html


Noteworthy changes in version 2.1.16 (2016-11-18)
-------------------------------------------------

 * gpg: New algorithm for selecting the best ranked public key when
   using a mail address with -r, -R, or --locate-key.

 * gpg: New option --with-tofu-info to print a new "tfs" record in
   colon formatted key listings.

 * gpg: New option --compliance as an alternative way to specify
   options like --rfc2440, --rfc4880, et al.

 * gpg: Many changes to the TOFU implementation.

 * gpg: Improve usability of --quick-gen-key.

 * gpg: In --verbose mode print a diagnostic when a pinentry is
   launched.

 * gpg: Remove code which warns for old versions of gnome-keyring.

 * gpg: New option --override-session-key-fd.

 * gpg: Option --output does now work with --verify.

 * gpgv: New option --output to allow saving the verified data.

 * gpgv: New option --enable-special-filenames.

 * agent, dirmngr: New --supervised mode for use by systemd and alike.

 * agent: By default listen on all available sockets using standard
   names.

 * agent: Invoke scdaemon with --homedir.

 * dirmngr: On Linux now detects the removal of its own socket and
   terminates.

 * scd: Support ECC key generation.

 * scd: Support more card readers.

 * dirmngr: New option --allow-version-check to download a software
   version database in the background.

 * dirmngr: Use system provided CAs if no --hkp-cacert is given.

 * dirmngr: Use a default keyserver if none is explicitly set

 * gpgconf: New command --query-swdb to check software versions
   against an copy of an online database.

 * gpgconf: Print the socket directory with --list-dirs.

 * tools: The WKS tools now support draft version -02.

 * tools: Always build gpg-wks-client and install under libexec.

 * tools: New option --supported for gpg-wks-client.

 * The log-file option now accepts a value "socket://" to log to the
   socket named "S.log" in the standard socket directory.

 * Provide fake pinentries for use by tests cases of downstream
   developers.

 * Fixed many bugs and regressions.

 * Many changes and improvements for the test suite.

 See-also: gnupg-announce/2016q4/000398.html


Noteworthy changes in version 2.1.15 (2016-08-18)
-------------------------------------------------

 * gpg: Remove the --tofu-db-format option and support for the split
   TOFU database.

 * gpg: Add option --sender to prepare for coming features.

 * gpg: Add option --input-size-hint to help progress indicators.

 * gpg: Extend the PROGRESS status line with the counted unit.

 * gpg: Avoid publishing the GnuPG version by default with --armor.

 * gpg: Properly ignore legacy keys in the keyring cache.

 * gpg: Always print fingerprint records in --with-colons mode.

 * gpg: Make sure that keygrips are printed for each subkey in
   --with-colons mode.

 * gpg: New import filter "drop-sig".

 * gpgsm: Fix a bug in the machine-readable key listing.

 * gpg,gpgsm: Block signals during keyring updates to limits the
   effects of a Ctrl-C at the wrong time.

 * g13: Add command --umount and other fixes for dm-crypt.

 * agent: Fix regression in SIGTERM handling.

 * agent: Cleanup of the ssh-agent code.

 * agent: Allow import of overly long keys.

 * scd: Fix problems with card removal.

 * dirmngr: Remove all code for running as a system service.

 * tools: Make gpg-wks-client conforming to the specs.

 * tests: Improve the output of the new regression test tool.

 * tests: Distribute the standalone test runner.

 * tests: Run each test in a clean environment.

 * Spelling and grammar fixes.

 See-also: gnupg-announce/2016q3/000396.html


Noteworthy changes in version 2.1.14 (2016-07-14)
-------------------------------------------------

 * gpg: Removed options --print-dane-records and --print-pka-records.
   The new export options "export-pka" and "export-dane" can instead
   be used with the export command.

 * gpg: New options --import-filter and --export-filter.

 * gpg: New import options "import-show" and "import-export".

 * gpg: New option --no-keyring.

 * gpg: New command --quick-revuid.

 * gpg: New options -f/--recipient-file and -F/--hidden-recipient-file
   to directly specify encryption keys.

 * gpg: New option --mimemode to indicate that the content is a MIME
   part.  Does only enable --textmode right now.

 * gpg: New option --rfc4880bis to allow experiments with proposed
   changes to the current OpenPGP specs.

 * gpg: Fix regression in the "fetch" sub-command of --card-edit.

 * gpg: Fix regression since 2.1 in option --try-all-secrets.

 * gpgv: Change default options for extra security.

 * gpgsm: No more root certificates are installed by default.

 * agent: "updatestartuptty" does now affect more environment
   variables.

 * scd: The option --homedir does now work with scdaemon.

 * scd: Support some more GEMPlus card readers.

 * gpgtar: Fix handling of '-' as file name.

 * gpgtar: New commands --create and --extract.

 * gpgconf: Tweak for --list-dirs to better support shell scripts.

 * tools: Add programs gpg-wks-client and gpg-wks-server to implement
   a Web Key Service.  The configure option --enable-wks-tools is
   required to build them; they should be considered Beta software.

 * tests: Complete rework of the openpgp part of the test suite.  The
   test scripts have been changed from Bourne shell scripts to Scheme
   programs.  A customized scheme interpreter (gpgscm) is included.
   This change was triggered by the need to run the test suite on
   non-Unix platforms.

 * The rendering of the man pages has been improved.

 See-also: gnupg-announce/2016q3/000393.html


Noteworthy changes in version 2.1.13 (2016-06-16)
-------------------------------------------------

 * gpg: New command --quick-addkey.  Extend the --quick-gen-key
   command.

 * gpg: New --keyid-format "none" which is now also the default.

 * gpg: New option --with-subkey-fingerprint.

 * gpg: Include Signer's UID subpacket in signatures if the secret key
   has been specified using a mail address and the new option
   --disable-signer-uid is not used.

 * gpg: Allow unattended deletion of a secret key.

 * gpg: Allow export of non-passphrase protected secret keys.

 * gpg: New status lines KEY_CONSIDERED and NOTATION_FLAGS.

 * gpg: Change status line TOFU_STATS_LONG to use '~' as
   a non-breaking-space character.

 * gpg: Speedup key listings in Tofu mode.

 * gpg: Make sure that the current and total values of a PROGRESS
   status line are small enough.

 * gpgsm: Allow the use of AES192 and SERPENT ciphers.

 * dirmngr: Adjust WKD lookup to current specs.

 * dirmngr: Fallback to LDAP v3 if v2 is is not supported.

 * gpgconf: New commands --create-socketdir and --remove-socketdir,
   new option --homedir.

 * If a /run/user/$UID directory exists, that directory is now used
   for IPC sockets instead of the GNUPGHOME directory.  This fixes
   problems with NFS and too long socket names and thus avoids the
   need for redirection files.

 * The Speedo build systems now uses the new versions.gnupg.org server
   to retrieve the default package versions.

 * Fix detection of libusb on FreeBSD.

 * Speedup fd closing after a fork.

 See-also: gnupg-announce/2016q2/000390.html


Noteworthy changes in version 2.1.12 (2016-05-04)
-------------------------------------------------

 * gpg: New --edit-key sub-command "change-usage" for testing
   purposes.

 * gpg: Out of order key-signatures are now systematically detected
   and fixed by --edit-key.

 * gpg: Improved detection of non-armored messages.

 * gpg: Removed the extra prompt needed to create Curve25519 keys.

 * gpg: Improved user ID selection for --quick-sign-key.

 * gpg: Use the root CAs provided by the system with --fetch-key.

 * gpg: Add support for the experimental Web Key Directory key
   location service.

 * gpg: Improve formatting of Tofu messages and emit new Tofu specific
   status lines.

 * gpgsm: Add option --pinentry-mode to support a loopback pinentry.

 * gpgsm: A new pubring.kbx is now created with the header blob so
   that gpg can detect that the keybox format needs to be used.

 * agent: Add read support for the new private key protection format
   openpgp-s2k-ocb-aes.

 * agent: Add read support for the new extended private key format.

 * agent: Default to --allow-loopback-pinentry and add option
   --no-allow-loopback-pinentry.

 * scd: Changed to use the new libusb 1.0 API for the internal CCID
   driver.

 * dirmngr: The dirmngr-client does now auto-detect the PEM format.

 * g13: Add experimental support for dm-crypt.

 * w32: Tofu support is now available with the Speedo build method.

 * w32: Removed the need for libiconv.dll.

 * The man pages for gpg and gpgv are now installed under the correct
   name (gpg2 or gpg - depending on a configure option).

 * Lots of internal cleanups and bug fixes.

 See-also: gnupg-announce/2016q2/000387.html


Noteworthy changes in version 2.1.11 (2016-01-26)
-------------------------------------------------

 * gpg: New command --export-ssh-key to replace the gpgkey2ssh tool.

 * gpg: Allow to generate mail address only keys with --gen-key.

 * gpg: "--list-options show-usage" is now the default.

 * gpg: Make lookup of DNS CERT records holding an URL work.

 * gpg: Emit PROGRESS status lines during key generation.

 * gpg: Don't check for ambiguous or non-matching key specification in
   the config file or given to --encrypt-to.  This feature will return
   in 2.3.x.

 * gpg: Lock keybox files while updating them.

 * gpg: Solve rare error on Windows during keyring and Keybox updates.

 * gpg: Fix possible keyring corruption. (bug#2193)

 * gpg: Fix regression of "bkuptocard" sub-command in --edit-key and
   remove "checkbkupkey" sub-command introduced with 2.1.  (bug#2169)

 * gpg: Fix internal error in gpgv when using default keyid-format.

 * gpg: Fix --auto-key-retrieve to work with dirmngr.conf configured
   keyservers. (bug#2147).

 * agent: New option --pinentry-timeout.

 * scd: Improve unplugging of USB readers under Windows.

 * scd: Fix regression for generating RSA keys on card.

 * dirmmgr: All configured keyservers are now searched.

 * dirmngr: Install CA certificate for hkps.pool.sks-keyservers.net.
   Use this certificate even if --hkp-cacert is not used.

 * gpgtar: Add actual encryption code.  gpgtar does now fully replace
   gpg-zip.

 * gpgtar: Fix filename encoding problem on Windows.

 * Print a warning if a GnuPG component is using an older version of
   gpg-agent, dirmngr, or scdaemon.

 See-also: gnupg-announce/2016q1/000383.html


Noteworthy changes in version 2.1.10 (2015-12-04)
-------------------------------------------------

 * gpg: New trust models "tofu" and "tofu+pgp".

 * gpg: New command --tofu-policy.  New options --tofu-default-policy
   and --tofu-db-format.

 * gpg: New option --weak-digest to specify hash algorithms which
   should be considered weak.

 * gpg: Allow the use of multiple --default-key options; take the last
   available key.

 * gpg: New option --encrypt-to-default-key.

 * gpg: New option --unwrap to only strip the encryption layer.

 * gpg: New option --only-sign-text-ids to exclude photo IDs from key
   signing.

 * gpg: Check for ambiguous or non-matching key specification in the
   config file or given to --encrypt-to.

 * gpg: Show the used card reader with --card-status.

 * gpg: Print export statistics and an EXPORTED status line.

 * gpg: Allow selecting subkeys by keyid in --edit-key.

 * gpg: Allow updating the expiration time of multiple subkeys at
   once.

 * dirmngr: New option --use-tor.  For full support this requires
   libassuan version 2.4.2 and a patched version of libadns
   (e.g. adns-1.4-g10-7 as used by the standard Windows installer).

 * dirmngr: New option --nameserver to specify the nameserver used in
   Tor mode.

 * dirmngr: Keyservers may again be specified by IP address.

 * dirmngr: Fixed problems in resolving keyserver pools.

 * dirmngr: Fixed handling of premature termination of TLS streams so
   that large numbers of keys can be refreshed via hkps.

 * gpg: Fixed a regression in --locate-key [since 2.1.9].

 * gpg: Fixed another bug for keyrings with legacy keys.

 * gpgsm: Allow combinations of usage flags in --gen-key.

 * Make tilde expansion work with most options.

 * Many other cleanups and bug fixes.

 See-also: gnupg-announce/2015q4/000381.html


Noteworthy changes in version 2.1.9 (2015-10-09)
------------------------------------------------

 * gpg: Allow fetching keys via OpenPGP DANE (--auto-key-locate).  New
   option --print-dane-records.  [Update: --print-dane-records replaced
   in 2.1.4.]

 * gpg: Fix for a problem with PGP-2 keys in a keyring.

 * gpg: Fail with an error instead of a warning if a modern cipher
   algorithm is used without a MDC.

 * agent: New option --pinentry-invisible-char.

 * agent: Always do a RSA signature verification after creation.

 * agent: Fix a regression in ssh-add-ing Ed25519 keys.

 * agent: Fix ssh fingerprint computation for nistp384 and EdDSA.

 * agent: Fix crash during passphrase entry on some platforms.

 * scd: Change timeout to fix problems with some 2.1 cards.

 * dirmngr: Displayed name is now Key Acquirer.

 * dirmngr: Add option --keyserver.  Deprecate that option for gpg.
   Install a dirmngr.conf file from a skeleton for new installations.

 See-also: gnupg-announce/2015q4/000380.html


Noteworthy changes in version 2.1.8 (2015-09-10)
------------------------------------------------

 * gpg: Sending very large keys to the keyservers works again.

 * gpg: Validity strings in key listings are now again translatable.

 * gpg: Emit FAILURE status lines to help GPGME.

 * gpg: Does not anymore link to Libksba to reduce dependencies.

 * gpgsm: Export of secret keys via Assuan is now possible.

 * agent: Raise the maximum passphrase length from 100 to 255 bytes.

 * agent: Fix regression using EdDSA keys with ssh.

 * Does not anymore use a build timestamp by default.

 * The fallback encoding for broken locale settings changed
   from Latin-1 to UTF-8.

 * Many code cleanups and improved internal documentation.

 * Various minor bug fixes.

 See-also: gnupg-announce/2015q3/000379.html


Noteworthy changes in version 2.1.7 (2015-08-11)
------------------------------------------------

 * gpg: Support encryption with Curve25519 if Libgcrypt 1.7 is used.

 * gpg: In the --edit-key menu: Removed the need for "toggle", changed
   how secret keys are indicated, new commands "fpr *" and "grip".

 * gpg: More fixes related to legacy keys in a keyring.

 * gpgv: Does now also work with a "trustedkeys.kbx" file.

 * scd: Support some feature from the OpenPGP card 3.0 specs.

 * scd: Improved ECC support

 * agent: New option --force for the DELETE_KEY command.

 * w32: Look for the Pinentry at more places.

 * Dropped deprecated gpgsm-gencert.sh

 * Various other bug fixes.

 See-also: gnupg-announce/2015q3/000371.html


Noteworthy changes in version 2.1.6 (2015-07-01)
------------------------------------------------

 * agent: New option --verify for the PASSWD command.

 * gpgsm: Add command option "offline" as an alternative to
   --disable-dirmngr.

 * gpg: Do not prompt multiple times for a password in pinentry
   loopback mode.

 * Allow the use of debug category names with --debug.

 * Using gpg-agent and gpg/gpgsm with different locales will now show
   the correct translations in Pinentry.

 * gpg: Improve speed of --list-sigs and --check-sigs.

 * gpg: Make --list-options show-sig-subpackets work again.

 * gpg: Fix an export problem for old keyrings with PGP-2 keys.

 * scd: Support PIN-pads on more readers.

 * dirmngr: Properly cleanup zombie LDAP helper processes and avoid
   hangs on dirmngr shutdown.

 * Various other bug fixes.

 See-also: gnupg-announce/2015q3/000370.html


Noteworthy changes in version 2.1.5 (2015-06-11)
------------------------------------------------

 * Support for an external passphrase cache.

 * Support for the forthcoming version 3 OpenPGP smartcard.

 * Manuals now show the actual used file names.

 * Prepared for improved integration with Emacs.

 * Code cleanups and minor bug fixes.

 See-also: gnupg-announce/2015q2/000369.html


Noteworthy changes in version 2.1.4 (2015-05-12)
------------------------------------------------

 * gpg: Add command --quick-adduid to non-interactively add a new user
   id to an existing key.

 * gpg: Do no enable honor-keyserver-url by default.  Make it work if
   enabled.

 * gpg: Display the serial number in the --card-status output again.

 * agent: Support for external password managers.
   Add option --no-allow-external-cache.

 * scdaemon: Improved handling of extended APDUs.

 * Make HTTP proxies work again.

 * All network access including DNS as been moved to Dirmngr.

 * Allow building without LDAP support.

 * Fixed lots of smaller bugs.

 See-also: gnupg-announce/2015q2/000366.html


Noteworthy changes in version 2.1.3 (2015-04-11)
------------------------------------------------

 * gpg: LDAP keyservers are now supported by 2.1.

 * gpg: New option --with-icao-spelling.

 * gpg: New option --print-pka-records.  Changed the PKA method to use
   CERT records and hashed names.  [Update: --print-pka-records
   replaced in 2.1.14.]

 * gpg: New command --list-gcrypt-config.  New parameter "curve"
   for --list-config.

 * gpg: Print a NEWSIG status line like gpgsm always did.

 * gpg: Print MPI values with --list-packets and --verbose.

 * gpg: Write correct MPI lengths with ECC keys.

 * gpg: Skip legacy PGP-2 keys while searching.

 * gpg: Improved searching for mail addresses when using a keybox.

 * gpgsm: Changed default algos to AES-128 and SHA-256.

 * gpgtar: Fixed extracting files with sizes of a multiple of 512.

 * dirmngr: Fixed SNI handling for hkps pools.

 * dirmngr: extra-certs and trusted-certs are now always loaded from
   the sysconfig dir instead of the homedir.

 * Fixed possible problems due to compiler optimization, two minor
   regressions, and other bugs.

 See-also: gnupg-announce/2015q2/000365.html


Noteworthy changes in version 2.1.2 (2015-02-11)
------------------------------------------------

 * gpg: The parameter 'Passphrase' for batch key generation works
   again.

 * gpg: Using a passphrase option in batch mode now has the expected
   effect on --quick-gen-key.

 * gpg: Improved reporting of unsupported PGP-2 keys.

 * gpg: Added support for algo names when generating keys using
   --command-fd.

 * gpg: Fixed DoS based on bogus and overlong key packets.

 * agent: When setting --default-cache-ttl the value
   for --max-cache-ttl is adjusted to be not lower than the former.

 * agent: Fixed problems with the new --extra-socket.

 * agent: Made --allow-loopback-pinentry changeable with gpgconf.

 * agent: Fixed importing of unprotected openpgp keys.

 * agent: Now tries to use a fallback pinentry if the standard
   pinentry is not installed.

 * scd: Added support for ECDH.

 * Fixed several bugs related to bogus keyrings and improved some
   other code.

 See-also: gnupg-announce/2015q1/000361.html


Noteworthy changes in version 2.1.1 (2014-12-16)
------------------------------------------------

 * gpg: Detect faulty use of --verify on detached signatures.

 * gpg: New import option "keep-ownertrust".

 * gpg: New sub-command "factory-reset" for --card-edit.

 * gpg: A stub key for smartcards is now created by --card-status.

 * gpg: Fixed regression in --refresh-keys.

 * gpg: Fixed regression in %g and %p codes for --sig-notation.

 * gpg: Fixed best matching hash algo detection for ECDSA and EdDSA.

 * gpg: Improved perceived speed of secret key listisngs.

 * gpg: Print number of skipped PGP-2 keys on import.

 * gpg: Removed the option aliases --throw-keyid and --notation-data;
   use --throw-keyids and --set-notation instead.

 * gpg: New import option "keep-ownertrust".

 * gpg: Skip too large keys during import.

 * gpg,gpgsm: New option --no-autostart to avoid starting gpg-agent or
   dirmngr.

 * gpg-agent: New option --extra-socket to provide a restricted
   command set for use with remote clients.

 * gpgconf --kill does not anymore start a service only to kill it.

 * gpg-pconnect-agent: Add convenience option --uiserver.

 * Fixed keyserver access for Windows.

 * Fixed build problems on Mac OS X

 * The Windows installer does now install development files

 * More translations (but most of them are not complete).

 * To support remotely mounted home directories, the IPC sockets may
   now be redirected.  This feature requires Libassuan 2.2.0.

 * Improved portability and the usual bunch of bug fixes.

 See-also: gnupg-announce/2014q4/000360.html


Noteworthy changes in version 2.1.0 (2014-11-06)
------------------------------------------------

 This release introduces a lot of changes.  Most of them are internal
 and thus not user visible.  However, some long standing behavior has
 slightly changed and it is strongly suggested that an existing
 "~/.gnupg" directory is backed up before this version is used.

 A verbose description of the major new features and changes can be
 found in the file doc/whats-new-in-2.1.txt.

 * gpg: All support for v3 (PGP 2) keys has been dropped.  All
   signatures are now created as v4 signatures.  v3 keys will be
   removed from the keyring.

 * gpg: With pinentry-0.9.0 the passphrase "enter again" prompt shows
   up in the same window as the "new passphrase" prompt.

 * gpg: Allow importing keys with duplicated long key ids.

 * dirmngr: May now be build without support for LDAP.

 * For a complete list of changes see the lists of changes for the
   2.1.0 beta versions below.  Note that all relevant fixes from
   versions 2.0.14 to 2.0.26 are also applied to this version.


 [Noteworthy changes in version 2.1.0-beta864 (2014-10-03)]

 * gpg: Removed the GPG_AGENT_INFO related code.  GnuPG does now
   always use a fixed socket name in its home directory.

 * gpg: Renamed --gen-key to --full-gen-key and re-added a --gen-key
   command with less choices.

 * gpg: Use SHA-256 for all signature types also on RSA keys.

 * gpg: Default keyring is now created with a .kbx suffix.

 * gpg: Add a shortcut to the key capabilities menu (e.g. "=e" sets the
   encryption capabilities).

 * gpg: Fixed obsolete options parsing.

 * Further improvements for the alternative speedo build system.


 [Noteworthy changes in version 2.1.0-beta834 (2014-09-18)]

 * gpg: Improved passphrase caching.

 * gpg: Switched to algorithm number 22 for EdDSA.

 * gpg: Removed CAST5 from the default preferences.

 * gpg: Order SHA-1 last in the hash preferences.

 * gpg: Changed default cipher for --symmetric to AES-128.

 * gpg: Fixed export of ECC keys and import of EdDSA keys.

 * dirmngr: Fixed the KS_FETCH command.

 * The speedo build system now downloads related packages and works
   for non-Windows platforms.


 [Noteworthy changes in version 2.1.0-beta783 (2014-08-14)]

 * gpg: Add command --quick-gen-key.

 * gpg: Make --quick-sign-key promote local key signatures.

 * gpg: Added "show-usage" sub-option to --list-options.

 * gpg: Screen keyserver responses to avoid importing unwanted keys
   from rogue servers.

 * gpg: Removed the option --pgp2 and --rfc1991 and the ability to
   create PGP-2 compatible messages.

 * gpg: Removed options --compress-keys and --compress-sigs.

 * gpg: Cap attribute packets at 16MB.

 * gpg: Improved output of --list-packets.

 * gpg: Make with-colons output of --search-keys work again.

 * gpgsm: Auto-create the ".gnupg" directory like gpg does.

 * agent: Fold new passphrase warning prompts into one.

 * scdaemon: Add support for the Smartcard-HSM card.

 * scdaemon: Remove the use of the pcsc-wrapper.


 [Noteworthy changes in version 2.1.0-beta751 (2014-07-03)]

 * gpg: Create revocation certificates during key generation.

 * gpg: Create exported secret keys and revocation certifciates with
   mode 0700

 * gpg: The validity of user ids is now shown by default.  To revert
   this add "list-options no-show-uid-validity" to gpg.conf.

 * gpg: Make export of secret keys work again.

 * gpg: The output of --list-packets does now print the offset of the
   packet and information about the packet header.

 * gpg: Avoid DoS due to garbled compressed data packets. [CVE-2014-4617]

 * gpg: Print more specific reason codes with the INV_RECP status.

 * gpg: Cap RSA and Elgamal keysize at 4096 bit also for unattended
   key generation.

 * scdaemon: Support reader Gemalto IDBridge CT30 and pinpad of SCT
   cyberJack go.

 * The speedo build system has been improved.  It is now also possible
   to build a partly working installer for Windows.


 [Noteworthy changes in version 2.1.0-beta442 (2014-06-05)]

 * gpg: Changed the format of key listings.  To revert to the old
   format the option --legacy-list-mode is available.

 * gpg: Add experimental signature support using curve Ed25519 and
   with a patched Libgcrypt also encryption support with Curve25519.
   [Update: this encryption support has been removed from 2.1.0 until
   we have agreed on a suitable format.]

 * gpg: Allow use of Brainpool curves.

 * gpg: Accepts a space separated fingerprint as user ID.  This
   allows one to copy and paste the fingerprint from the key listing.

 * gpg: The hash algorithm is now printed for signature records in key
   listings.

 * gpg: Reject signatures made using the MD5 hash algorithm unless the
   new option --allow-weak-digest-algos or --pgp2 are given.

 * gpg: Print a warning if the Gnome-Keyring-Daemon intercepts the
   communication with the gpg-agent.

 * gpg: New option --pinentry-mode.

 * gpg: Fixed decryption using an OpenPGP card.

 * gpg: Fixed bug with deeply nested compressed packets.

 * gpg: Only the major version number is by default included in the
   armored output.

 * gpg: Do not create a trustdb file if --trust-model=always is used.

 * gpg: Protect against rogue keyservers sending secret keys.

 * gpg: The format of the fallback key listing ("gpg KEYFILE") is now
   more aligned to the regular key listing ("gpg -k").

 * gpg: The option--show-session-key prints its output now before the
   decryption of the bulk message starts.

 * gpg: New %U expando for the photo viewer.

 * gpg,gpgsm: New option --with-secret.

 * gpgsm: By default the users are now asked via the Pinentry whether
   they trust an X.509 root key.  To prohibit interactive marking of
   such keys, the new option --no-allow-mark-trusted may be used.

 * gpgsm: New commands to export a secret RSA key in PKCS#1 or PKCS#8
   format.

 * gpgsm: Improved handling of re-issued CA certificates.

 * agent: The included ssh agent does now support ECDSA keys.

 * agent: New option --enable-putty-support to allow gpg-agent on
   Windows to act as a Pageant replacement with full smartcard support.

 * scdaemon: New option --enable-pinpad-varlen.

 * scdaemon: Various fixes for pinpad equipped card readers.

 * scdaemon: Rename option --disable-pinpad (was --disable-keypad).

 * scdaemon: Better support for CCID readers.  Now, internal CCID
   driver supports readers with no auto configuration feature.

 * dirmngr: Removed support for the original HKP keyserver which is
   not anymore used by any site.

 * dirmngr: Improved support for keyserver pools.

 * tools: New option --dirmngr for gpg-connect-agent.

 * The GNU Pth library has been replaced by the new nPth library.

 * Support installation as portable application under Windows.

 * All kind of other improvements - see the git log.


 [Noteworthy changes in version 2.1.0beta3 (2011-12-20)]

 * gpg: Fixed regression in the secret key export function.

 * gpg: Allow generation of card keys up to 4096 bit.

 * gpgsm: Preliminary support for the validation model "steed".

 * gpgsm: Improved certificate creation.

 * agent: Support the SSH confirm flag.

 * agent: New option to select a passphrase mode.  The loopback
   mode may be used to bypass Pinentry.

 * agent: The Assuan commands KILLAGENT and KILLSCD are working again.

 * scdaemon: Does not anymore block after changing a card (regression
   fix).

 * tools: gpg-connect-agent does now properly display the help output
   for "SCD HELP" commands.


 [Noteworthy changes in version 2.1.0beta2 (2011-03-08)]

 * gpg: ECC support as described by draft-jivsov-openpgp-ecc-06.txt
   [Update: now known as RFC-6637].

 * gpg: Print "AES128" instead of "AES".  This change introduces a
   little incompatibility for tools using "gpg --list-config".  We
   hope that these tools are written robust enough to accept this new
   algorithm name as well.

 * gpgsm: New feature to create certificates from a parameter file.
   Add prompt to the --gen-key UI to create self-signed certificates.

 * agent: TMPDIR is now also honored when creating a socket using
   the --no-standard-socket option and with symcryptrun's temp files.

 * scdaemon: Fixed a bug where scdaemon sends a signal to gpg-agent
   running in non-daemon mode.

 * dirmngr: Fixed CRL loading under W32 (bug#1010).

 * Dirmngr has taken over the function of the keyserver helpers.  Thus
   we now have a specified direct interface to keyservers via Dirmngr.
   LDAP, DNS and mail backends are not yet implemented.

 * Fixed TTY management for pinentries and session variable update
   problem.


 [Noteworthy changes in version 2.1.0beta1 (2010-10-26)]

 * gpg: secring.gpg is not anymore used but all secret key operations
   are delegated to gpg-agent.  The import command moves secret keys
   to the agent.

 * gpg: The OpenPGP import command is now able to merge secret keys.

 * gpg: Encrypted OpenPGP messages with trailing data (e.g. other
   OpenPGP packets) are now correctly parsed.

 * gpg: Given sufficient permissions Dirmngr is started automagically.

 * gpg: Fixed output of "gpgconf --check-options".

 * gpg: Removed options --export-options(export-secret-subkey-passwd)
   and --simple-sk-checksum.

 * gpg: New options --try-secret-key.

 * gpg: Support DNS lookups for SRV, PKA and CERT on W32.

 * gpgsm: The --audit-log feature is now more complete.

 * gpgsm: The default for --include-cert is now to include all
   certificates in the chain except for the root certificate.

 * gpgsm: New option --ignore-cert-extension.

 * g13: The G13 tool for disk encryption key management has been
   added.

 * agent: If the agent's --use-standard-socket option is active, all
   tools try to start and daemonize the agent on the fly.  In the past
   this was only supported on W32; on non-W32 systems the new
   configure option --disable-standard-socket may now be used to
   disable this new default.

 * agent: New and changed passphrases are now created with an
   iteration count requiring about 100ms of CPU work.

 * dirmngr: Dirmngr is now a part of this package.  It is now also
   expected to run as a system service and the configuration
   directories are changed to the GnuPG name space. [Update: 2.1.0
   starts dirmngr on demand as user daemon.]

 * Support for Windows CE. [Update: This has not been tested for the
   2.1.0 release]

 * Numerical values may now be used as an alternative to the
   debug-level keywords.

 See-also: gnupg-announce/2014q4/000358.html


Version 2.0.28 (2015-06-02)
Version 2.0.27 (2015-02-18)
Version 2.0.26 (2014-08-12)
Version 2.0.25 (2014-06-30)
Version 2.0.24 (2014-06-24)
Version 2.0.23 (2014-06-03)
Version 2.0.22 (2013-10-04)
Version 2.0.21 (2013-08-19)
Version 2.0.20 (2013-05-10)
Version 2.0.19 (2012-03-27)
Version 2.0.18 (2011-08-04)
Version 2.0.17 (2011-01-13)
Version 2.0.16 (2010-07-19)
Version 2.0.15 (2010-03-09)
Version 2.0.14 (2009-12-21)


Noteworthy changes in version 2.0.13 (2009-09-04)
-------------------------------------------------

 * GPG now generates 2048 bit RSA keys by default.  The default hash
   algorithm preferences has changed to prefer SHA-256 over SHA-1.
   2048 bit DSA keys are now generated to use a 256 bit hash algorithm

 * The envvars XMODIFIERS, GTK_IM_MODULE and QT_IM_MODULE are now
   passed to the Pinentry to make SCIM work.

 * The GPGSM command --gen-key features a --batch mode and implements
   all features of gpgsm-gencert.sh in standard mode.

 * New option --re-import for GPGSM's IMPORT server command.

 * Enhanced writing of existing keys to OpenPGP v2 cards.

 * Add hack to the internal CCID driver to allow the use of some
   Omnikey based card readers with 2048 bit keys.

 * GPG now repeatedly asks the user to insert the requested OpenPGP
   card.  This can be disabled with --limit-card-insert-tries=1.

 * Minor bug fixes.

 See-also: gnupg-announce/2009q3/000294.html


Noteworthy changes in version 2.0.12 (2009-06-17)
-------------------------------------------------

 * GPGSM now always lists ephemeral certificates if specified by
   fingerprint or keygrip.

 * New command "KEYINFO" for GPG_AGENT.  GPGSM now also returns
   information about smartcards.

 * Made sure not to leak file descriptors if running gpg-agent with a
   command.  Restore the signal mask to solve a problem in Mono.

 * Changed order of the confirmation questions for root certificates
   and store negative answers in trustlist.txt.

 * Better synchronization of concurrent smartcard sessions.

 * Support 2048 bit OpenPGP cards.

 * Support Telesec Netkey 3 cards.

 * The gpg-protect-tool now uses gpg-agent via libassuan.  Under
   Windows the Pinentry will now be put into the foreground.

 * Changed code to avoid a possible Mac OS X system freeze.

 See-also: gnupg-announce/2009q2/000288.html


Noteworthy changes in version 2.0.11 (2009-03-03)
-------------------------------------------------

 * Fixed a problem in SCDAEMON which caused unexpected card resets.

 * SCDAEMON is now aware of the Geldkarte.

 * The SCDAEMON option --allow-admin is now used by default.

 * GPGCONF now restarts SCdaemon if necessary.

 * The default cipher algorithm in GPGSM is now again 3DES.  This is
   due to interoperability problems with Outlook 2003 which still
   can't cope with AES.

 See-also: gnupg-announce/2009q1/000287.html


Noteworthy changes in version 2.0.10 (2009-01-12)
-------------------------------------------------

 * [gpg] New keyserver helper gpg2keys_kdns as generic DNS CERT
   lookup.  Run with --help for a short description.  Requires the
   ADNS library.

 * [gpg] New mechanisms "local" and "nodefault" for --auto-key-locate.
   Fixed a few problems with this option.

 * [gpg] New command --locate-keys.

 * [gpg] New options --with-sig-list and --with-sig-check.

 * [gpg] The option "-sat" is no longer an alias for --clearsign.

 * [gpg] The option --fixed-list-mode is now implicitly used and obsolete.

 * [gpg] New control statement %ask-passphrase for the unattended key
   generation.

 * [gpg] The algorithm to compute the SIG_ID status has been changed.

 * [gpgsm] Now uses AES by default.

 * [gpgsm] Made --output option work with --export-secret-key-p12.

 * [gpg-agent] Terminate process if the own listening socket is not
   anymore served by ourself.

 * [scdaemon] Made it more robust on W32.

 * [gpg-connect-agent] Accept commands given as command line arguments.

 * [w32] Initialized the socket subsystem for all keyserver helpers.

 * [w32] The sysconf directory has been moved from a subdirectory of
   the installation directory to %CSIDL_COMMON_APPDATA%/GNU/etc/gnupg.

 * [w32] The gnupg2.nls directory is not anymore used.  The standard
   locale directory is now used.

 * [w32] Fixed a race condition between gpg and gpgsm in the use of
   temporary file names.

 * The gpg-preset-passphrase mechanism works again.  An arbitrary
   string may now be used for a custom cache ID.

 * Admin PINs are cached again (bug in 2.0.9).

 * Support for version 2 OpenPGP cards.

 * Libgcrypt 1.4 is now required.

 See-also: gnupg-announce/2009q1/000284.html


Noteworthy changes in version 2.0.9 (2008-03-26)
------------------------------------------------

 * Gpgsm always tries to locate missing certificates from a running
   Dirmngr's cache.

 * Tweaks for Windows.

 * The Admin PIN for OpenPGP cards may now be entered with the pinpad.

 * Improved certificate chain construction.

 * Extended the PKITS framework.

 * Fixed a bug in the ambiguous name detection.

 * Fixed possible memory corruption while importing OpenPGP keys (bug
   introduced with 2.0.8). [CVE-2008-1530]

 * Minor bug fixes.



Noteworthy changes in version 2.0.8 (2007-12-20)
------------------------------------------------

 * Enhanced gpg-connect-agent with a small scripting language.

 * New option --list-config for gpgconf.

 * Fixed a crash in gpgconf.

 * Gpg-agent now supports the passphrase quality bar of the latest
   Pinentry.

 * The envvars XAUTHORITY and PINENTRY_USER_DATA are now passed to the
   Pinentry.

 * Fixed the auto creation of the key stub for smartcards.

 * Fixed a rare bug in decryption using the OpenPGP card.

 * Creating DSA2 keys is now possible.

 * New option --extra-digest-algo for gpgsm to allow verification of
   broken signatures.

 * Allow encryption with legacy Elgamal sign+encrypt keys with option
   --rfc2440.

 * Windows is now a supported platform.

 * Made sure that under Windows the file permissions of the socket are
   taken into account.  This required a change of our socket emulation
   code and changed the IPC protocol under Windows.

 See-also: gnupg-announce/2007q4/000267.html


Noteworthy changes in version 2.0.7 (2007-09-10)
------------------------------------------------

 * Fixed encryption problem if duplicate certificates are in the
   keybox.

 * Made it work on Windows Vista.  Note that the entire Windows port
   is still considered Beta.

 * Add new options min-passphrase-nonalpha, check-passphrase-pattern,
   enforce-passphrase-constraints and max-passphrase-days to
   gpg-agent.

 * Add command --check-components to gpgconf.  Gpgconf now uses the
   installed versions of the programs and does not anymore search via
   PATH for them.

 See-also: gnupg-announce/2007q3/000259.html


Noteworthy changes in version 2.0.6 (2007-08-16)
------------------------------------------------

 * GPGSM does now grok --default-key.

 * GPGCONF is now aware of --default-key and --encrypt-to.

 * GPGSM does again correctly print the serial number as well the the
   various keyids.  This was broken since 2.0.4.

 * New option --validation-model and support for the chain-model.

 * Improved Windows support.

 See-also: gnupg-announce/2007q3/000258.html


Noteworthy changes in version 2.0.5 (2007-07-05)
------------------------------------------------

 * Switched license to GPLv3.

 * Basic support for Windows.  Run "./autogen.sh --build-w32" to build
   it.  As usual the mingw cross compiling toolchain is required.

 * Fixed bug when using the --p12-charset without --armor.

 * The command --gen-key may now be used instead of the
   gpgsm-gencert.sh script.

 * Changed key generation to reveal less information about the
   machine.  Bug fixes for gpg2's card key generation.

 See-also: gnupg-announce/2007q3/000255.html


Noteworthy changes in version 2.0.4 (2007-05-09)
------------------------------------------------

 * The server mode key listing commands are now also working for
   systems without the funopen/fopencookie API.

 * PKCS#12 import now tries several encodings in case the passphrase
   was not utf-8 encoded.  New option --p12-charset for gpgsm.

 * Improved the libgcrypt logging support in all modules.

 See-also: gnupg-announce/2007q2/000254.html


Noteworthy changes in version 2.0.3 (2007-03-08)
------------------------------------------------

 * By default, do not allow processing multiple plaintexts in a single
   stream.  Many programs that called GnuPG were assuming that GnuPG
   did not permit this, and were thus not using the plaintext boundary
   status tags that GnuPG provides.  This change makes GnuPG reject
   such messages by default which makes those programs safe again.
   --allow-multiple-messages returns to the old behavior. [CVE-2007-1263].

 * New --verify-option show-primary-uid-only.

 * gpgconf may now reads a global configuration file to select which
   options are changeable by a frontend.  The new applygnupgdefaults
   tool may be used by an admin to set default options for all users.

 * The PIN pad of the Cherry XX44 keyboard is now supported.  The
   DINSIG and the NKS applications are now also aware of PIN pads.

 See-also: gnupg-announce/2007q1/000252.html


Noteworthy changes in version 2.0.2 (2007-01-31)
------------------------------------------------

 * Fixed a serious and exploitable bug in processing encrypted
   packages. [CVE-2006-6235].

 * Added --passphrase-repeat to set the number of times GPG will
   prompt for a new passphrase to be repeated.  This is useful to help
   memorize a new passphrase.  The default is 1 repetition.

 * Using a PIN pad does now also work for the signing key.

 * A warning is displayed by gpg-agent if a new passphrase is too
   short.  New option --min-passphrase-len defaults to 8.

 * The status code BEGIN_SIGNING now shows the used hash algorithms.

 See-also: gnupg-announce/2007q1/000249.html


Noteworthy changes in version 2.0.1 (2006-11-28)
------------------------------------------------

 * Experimental support for the PIN pads of the SPR 532 and the Kaan
   Advanced card readers.  Add "disable-keypad" scdaemon.conf if you
   don't want it.  Does currently only work for the OpenPGP card and
   its authentication and decrypt keys.

 * Fixed build problems on some some platforms and crashes on amd64.

 * Fixed a buffer overflow in gpg2. [bug#728,CVE-2006-6169]

 See-also: gnupg-announce/2006q4/000242.html


Noteworthy changes in version 2.0.0 (2006-11-11)
------------------------------------------------

 * First stable version of a GnuPG integrating OpenPGP and S/MIME.

 See-also: gnupg-announce/2006q4/000239.html


Noteworthy changes in version 1.9.95 (2006-11-06)
-------------------------------------------------

 * Minor bug fixes.


Noteworthy changes in version 1.9.94 (2006-10-24)
-------------------------------------------------

 * Keys for gpgsm may now be specified using a keygrip.  A keygrip is
   indicated by a prefixing it with an ampersand.

 * gpgconf now supports switching the CMS cipher algo (e.g. to AES).

 * New command --gpgconf-test for all major tools. This may be used to
   check whether the configuration file is sane.


Noteworthy changes in version 1.9.93 (2006-10-18)
-------------------------------------------------

 * In --with-validation mode gpgsm will now also ask whether a root
   certificate should be trusted.

 * Link to Pth only if really necessary.

 * Fixed a pubring corruption bug in gpg2 occurring when importing
   signatures or keys with insane lengths.

 * Fixed v3 keyID calculation bug in gpg2.

 * More tweaks for certificates without extensions.


Noteworthy changes in version 1.9.92 (2006-10-11)
-------------------------------------------------

 * Bug fixes.

 See-also: gnupg-announce/2006q4/000236.html


Noteworthy changes in version 1.9.91 (2006-10-04)
-------------------------------------------------

 * New "relax" flag for trustlist.txt to allow root CA certificates
   without BasicContraints.

 * [gpg2] Removed the -k PGP 2 compatibility hack.  -k is now an
   alias for --list-keys.

 * [gpg2] Print a warning if "-sat" is used instead of "--clearsign".


Noteworthy changes in version 1.9.90 (2006-09-25)
-------------------------------------------------

 * Made readline work for gpg.

 * Cleanups und minor bug fixes.

 * Included translations from gnupg 1.4.5.


Noteworthy changes in version 1.9.23 (2006-09-18)
-------------------------------------------------

 * Regular man pages for most tools are now build directly from the
   Texinfo source.

 * The gpg code from 1.4.5 has been fully merged into this release.
   The configure option --enable-gpg is still required to build this
   gpg part.  For production use of OpenPGP the gpg version 1.4.5 is
   still recommended.  Note, that gpg will be installed under the name
   gpg2 to allow coexisting with an 1.4.x gpg.

 * API change in gpg-agent's pkdecrypt command.  Thus an older gpgsm
   may not be used with the current gpg-agent.

 * The scdaemon will now call a script on reader status changes.

 * gpgsm now allows file descriptor passing for "INPUT", "OUTPUT" and
   "MESSAGE".

 * The gpgsm server may now output a key listing to the output file
   handle. This needs to be enabled using "OPTION list-to-output=1".

 * The --output option of gpgsm has now an effect on list-keys.

 * New gpgsm commands --dump-chain and list-chain.

 * gpg-connect-agent has new options to utilize descriptor passing.

 * A global trustlist may now be used.  See doc/examples/trustlist.txt.

 * When creating a new pubring.kbx keybox common certificates are
   imported.


Noteworthy changes in version 1.9.22 (2006-07-27)
-------------------------------------------------

 * Enhanced pkcs#12 support to allow import from simple keyBags.

 * Exporting to pkcs#12 now create bag attributes so that Mozilla is
   able to import the files.

 * Fixed uploading of certain keys to the smart card.


Noteworthy changes in version 1.9.21 (2006-06-20)
-------------------------------------------------

 * New command APDU for scdaemon to allow using it for general card
   access.  Might be used through gpg-connect-agent by using the SCD
   prefix command.

 * Support for the CardMan 4040 PCMCIA reader (Linux 2.6.15 required).

 * Scdaemon does not anymore reset cards at the end of a connection.

 * Kludge to allow use of Bundesnetzagentur issued X.509 certificates.

 * Added --hash=xxx option to scdaemon's PKSIGN command.

 * Pkcs#12 files are now created with a MAC.  This is for better
   interoperability.

 * Collected bug fixes and minor other changes.


Noteworthy changes in version 1.9.20 (2005-12-20)
-------------------------------------------------

 * Importing pkcs#12 files created be recent versions of Mozilla works
   again.

 * Basic support for qualified signatures.

 * New debug tool gpgparsemail.


Noteworthy changes in version 1.9.19 (2005-09-12)
-------------------------------------------------

 * The Belgian eID card is now supported for signatures and ssh.
   Other pkcs#15 cards should work as well.

 * Fixed bug in --export-secret-key-p12 so that certificates are again
   included.


Noteworthy changes in version 1.9.18 (2005-08-01)
-------------------------------------------------

 * [gpgsm] Now allows for more than one email address as well as URIs
   and dnsNames in certificate request generation.  A keygrip may be
   given to create a request from an existing key.

 * A couple of minor bug fixes.


Noteworthy changes in version 1.9.17 (2005-06-20)
-------------------------------------------------

 * gpg-connect-agent has now features to handle Assuan INQUIRE
   commands.

 * Internal changes for OpenPGP cards. New Assuan command WRITEKEY.

 * GNU Pth is now a hard requirement.

 * [scdaemon] Support for OpenSC has been removed.  Instead a new and
   straightforward pkcs#15 modules has been written.  As of now it
   does allows only signing using TCOS cards but we are going to
   enhance it to match all the old capabilities.

 * [gpg-agent] New option --write-env-file and Assuan command
   UPDATESTARTUPTTY.

 * [gpg-agent] New option --default-cache-ttl-ssh to set the TTL for
   SSH passphrase caching independent from the other passphrases.


Noteworthy changes in version 1.9.16 (2005-04-21)
-------------------------------------------------

 * gpg-agent does now support the ssh-agent protocol and thus allows
   to use the pinentry as well as the OpenPGP smartcard with ssh.

 * New tool gpg-connect-agent as a general client for the gpg-agent.

 * New tool symcryptrun as a wrapper for certain encryption tools.

 * The gpg tool is not anymore build by default because those gpg
   versions available in the gnupg 1.4 series are far more matured.


Noteworthy changes in version 1.9.15 (2005-01-13)
-------------------------------------------------

 * Fixed passphrase caching bug.

 * Better support for CCID readers; the reader from Cherry RS 6700 USB
   does now work.


Noteworthy changes in version 1.9.14 (2004-12-22)
-------------------------------------------------

 * [gpg-agent] New option --use-standard-socket to allow the use of a
   fixed socket.  gpgsm falls back to this socket if GPG_AGENT_INFO
   has not been set.

 * Ported to MS Windows with some functional limitations.

 * New tool gpg-preset-passphrase.


Noteworthy changes in version 1.9.13 (2004-12-03)
-------------------------------------------------

 * [gpgsm] New option --prefer-system-dirmngr.

 * Minor cleanups and debugging aids.


Noteworthy changes in version 1.9.12 (2004-10-22)
-------------------------------------------------

 * [scdaemon] Partly rewrote the PC/SC code.

 * Removed the sc-investigate tool.  It is now in a separate package
   available at ftp://ftp.g10code.com/g10code/gscutils/ .

 * [gpg-agent] Fixed logging problem.


Noteworthy changes in version 1.9.11 (2004-10-01)
-------------------------------------------------

 * When using --import along with --with-validation, the imported
   certificates are validated and only imported if they are fully
   valid.

 * [gpg-agent] New option --max-cache-ttl.

 * [gpg-agent] When used without --daemon or --server, gpg-agent now
   check whether a agent is already running and usable.

 * Fixed some i18n problems.


Noteworthy changes in version 1.9.10 (2004-07-22)
-------------------------------------------------

 * Fixed a serious bug in the checking of trusted root certificates.

 * New configure option --enable-agent-only allows one to build and
   install just the agent.

 * Fixed a problem with the log file handling.


Noteworthy changes in version 1.9.9 (2004-06-08)
------------------------------------------------

 * [gpg-agent] The new option --allow-mark-trusted is now required to
   allow gpg-agent to add a key to the trustlist.txt after user
   confirmation.

 * Creating PKCS#10 requests does now honor the key usage.


Noteworthy changes in version 1.9.8 (2004-04-29)
------------------------------------------------

 * [scdaemon] Overhauled the internal CCID driver.

 * [scdaemon] Status files named ~/.gnupg/reader_<n>.status are now
   written when using the internal CCID driver.

 * [gpgsm] New commands --dump-{,secret,external}-keys to show a very
   detailed view of the certificates.

 * The keybox gets now compressed after 3 hours and ephemeral
   stored certificates are deleted after about a day.

 * [gpg] Usability fixes for --card-edit.  Note, that this has already
   been ported back to gnupg-1.3


Noteworthy changes in version 1.9.7 (2004-04-06)
------------------------------------------------

 * Instrumented the modules for gpgconf.

 * Added support for DINSIG card applications.

 * Include the smimeCapabilities attribute with signed messages.

 * Now uses the gettext domain "gnupg2" to avoid conflicts with gnupg
   versions < 1.9.


Noteworthy changes in version 1.9.6 (2004-03-06)
------------------------------------------------

 * Code cleanups and bug fixes.


Noteworthy changes in version 1.9.5 (2004-02-21)
------------------------------------------------

 * gpg-protect-tool gets now installed into libexec as it ought to be.
   Cleaned up the build system to better comply with the coding
   standards.

 * [gpgsm] The --import command is now able to autodetect pkcs#12
   files and import secret and private keys from this file format.
   A new command --export-secret-key-p12 is provided to allow
   exporting of secret keys in PKCS\#12 format.

 * [gpgsm] The pinentry will now present a description of the key for
   whom the passphrase is requested.

 * [gpgsm] New option --with-validation to check the validity of key
   while listing it.

 * New option --debug-level={none,basic,advanced,expert,guru} to map
   the debug flags to sensitive levels on a per program base.


Noteworthy changes in version 1.9.4 (2004-01-30)
------------------------------------------------

 * Added support for the Telesec NKS 2.0 card application.

 * Added simple tool addgnupghome to create .gnupg directories from
   /etc/skel/.gnupg.

 * Various minor bug fixes and cleanups; mainly gpgsm and gpg-agent
   related.


Noteworthy changes in version 1.9.3 (2003-12-23)
------------------------------------------------

 * New gpgsm options --{enable,disable}-ocsp to validate keys using
   OCSP. This option requires a not yet released DirMngr version.
   Default is disabled.

 * The --log-file option may now be used to print logs to a socket.
   Prefix the socket name with "socket://" to enable this.  This does
   not work on all systems and falls back to stderr if there is a
   problem with the socket.

 * The options --encrypt-to and --no-encrypt-to now work the same in
   gpgsm as in gpg.  Note, they are also used in server mode.

 * Duplicated recipients are now silently removed in gpgsm.


Noteworthy changes in version 1.9.2 (2003-11-17)
------------------------------------------------

 * On card key generation is no longer done using the --gen-key
   command but from the menu provided by the new --card-edit command.

 * PINs are now properly cached and there are only 2 PINs visible.
   The 3rd PIN (CHV2) is internally synchronized with the regular PIN.

 * All kind of other internal stuff.


Noteworthy changes in version 1.9.1 (2003-09-06)
------------------------------------------------

 * Support for OpenSC is back. scdaemon supports a --disable-opensc to
   disable OpenSC use at runtime, so that PC/SC or ct-API can still be
   used directly.

 * Rudimentary support for the SCR335 smartcard reader using an
   internal driver.  Requires current libusb from CVS.

 * Bug fixes.


Noteworthy changes in version 1.9.0 (2003-08-05)
------------------------------------------------

      ====== PLEASE SEE README-alpha =======

 * gpg has been renamed to gpg2 and gpgv to gpgv2.  This is a
   temporary change to allow co-existing with stable gpg versions.

 * ~/.gnupg/gpg.conf-1.9.0 is fist tried as config file before the
   usual gpg.conf.

 * Removed the -k, -kv and -kvv commands.  -k is now an alias to
   --list-keys.  New command -K as alias for --list-secret-keys.

 * Removed --run-as-shm-coprocess feature.

 * gpg does now also use libgcrypt, libgpg-error is required.

 * New gpgsm commands --call-dirmngr and --call-protect-tool.

 * Changing a passphrase is now possible using "gpgsm --passwd"

 * The content-type attribute is now recognized and created.

 * The agent does now reread certain options on receiving a HUP.

 * The pinentry is now forked for each request so that clients with
   different environments are supported.  When running in daemon mode
   and --keep-display is not used the DISPLAY variable is ignored.

 * Merged stuff from the newpg branch and started this new
   development branch.


Version 1.4.19 (2015-02-27)
Version 1.4.18 (2014-06-30)
Version 1.4.17 (2014-06-23)
Version 1.4.16 (2013-12-18)
Version 1.4.15 (2013-10-04)
Version 1.4.14 (2013-07-25)
Version 1.4.13 (2012-12-20)
Version 1.4.12 (2012-01-30)
Version 1.4.11 (2010-10-18)
Version 1.4.10 (2009-09-02)
Version 1.4.9 (2008-03-26)
Version 1.4.8 (2007-12-20)
Version 1.4.7 (2007-03-05)
Version 1.4.6 (2006-12-06)
Version 1.4.5 (2006-08-01)
Version 1.4.4 (2006-06-25)
Version 1.4.3 (2006-04-03)
Version 1.4.2 (2005-07-26)
Version 1.4.1 (2005-03-15)
Version 1.4.0 (2004-12-16)


Noteworthy changes in version 1.3.2 (2003-05-27)
------------------------------------------------

    * New "--gnupg" option (set by default) that disables --openpgp,
      and the various --pgpX emulation options.  This replaces
      --no-openpgp, and --no-pgpX, and also means that GnuPG has
      finally grown a --gnupg option to make GnuPG act like GnuPG.

    * A bug in key validation has been fixed.  This bug only affects
      keys with more than one user ID (photo IDs do not count here),
      and results in all user IDs on a given key being treated with
      the validity of the most-valid user ID on that key.

    * Notation names that do not contain a '@' are no longer allowed
      unless --expert is set.  This is to help prevent pollution of
      the (as yet unused) IETF notation namespace.

    * Multiple trust models are now supported via the --trust-model
      option.  The options are "pgp" (web-of-trust plus trust
      signatures), "classic" (web-of-trust only), and "always"
      (identical to the --always-trust option).

    * The --personal-{cipher|digest|compression}-preferences are now
      consulted to get default algorithms before resorting to the
      last-ditch defaults of --s2k-cipher-algo, SHA1, and ZIP
      respectively.  This allows a user to set algorithms to use in a
      safe manner so they are used when legal to do so, without
      forcing them on for all messages.

    * New --primary-keyring option to designate the keyring that the
      user wants new keys imported into.

    * --s2k-digest-algo is now used for all password mangling.
      Earlier versions used both --s2k-digest-algo and --digest-algo
      for passphrase mangling.

    * Handling of --hidden-recipient or --throw-keyid messages is now
      easier - the user only needs to give their passphrase once, and
      GnuPG will try it against all of the available secret keys.

    * Care is taken to prevent compiler optimization from removing
      memory wiping code.

    * New option --no-mangle-dos-filenames so that filenames are not
      truncated in the W32 version.

    * A "convert-from-106" script has been added.  This is a simple
      script that automates the conversion from a 1.0.6 or earlier
      version of GnuPG to a 1.0.7 or later version.

    * Disabled keys are now skipped when selecting keys for
      encryption.  If you are using the --with-colons key listings to
      detect disabled keys, please see doc/DETAILS for a minor format
      change in this release.

    * Minor trustdb changes to make the trust calculations match
      common usage.

    * New command "revuid" in the --edit-key menu to revoke a user ID.
      This is a simpler interface to the old method (which still
      works) of revoking the user ID self-signature.

    * Status VALIDSIG does now also print the primary key's
      fingerprint, as well as the signature version, pubkey algorithm,
      hash algorithm, and signature class.

    * Add read-only support for the SHA-256 hash, and optional
      read-only support for the SHA-384 and SHA-512 hashes.

    * New option --enable-progress-filter for use with frontends.

    * DNS SRV records are used in HKP keyserver lookups to allow
      administrators to load balance and select keyserver ports
      automatically.  This is as specified in
      draft-shaw-openpgp-hkp-00.txt.

    * When using the "keyid!" syntax during a key export, only that
      specified key is exported.  If the key in question is a subkey,
      the primary key plus only that subkey is exported.

    * configure --disable-xxx options to disable individual algorithms
      at build time.  This can be used to build a smaller gpg binary
      for embedded uses where space is tight.  See the README file for
      the algorithms that can be used with this option, or use
      --enable-minimal to build the smallest gpg possible (disables
      all optional algorithms, disables keyserver access, and disables
      photo IDs).

    * The keyserver no-modify flag on a key can now be displayed and
      modified.

    * Note that the TIGER/192 digest algorithm is in the process of
      being dropped from the OpenPGP standard.  While this release of
      GnuPG still contains it, it is disabled by default.  To ensure
      you will still be able to use your messages with future versions
      of GnuPG and other OpenPGP programs, please do not use this
      algorithm.

    See-also: gnupg-announce/2003q2/000153.html


Noteworthy changes in version 1.3.1 (2002-11-12)
------------------------------------------------

    * Trust signature support.  This is based on the Maurer trust
      model where a user can specify the trust level along with the
      signature with multiple levels so users can delegate
      certification ability to other users, possibly restricted by a
      regular expression on the user ID.  Note that full trust
      signature support requires a regular expression parsing library.
      The regexp code from glibc 2.3.1 is included for those platforms
      that don't have working regexp functions available.  The
      configure option --disable-regex may be used to disable any
      regular expression code, which will make GnuPG ignore any trust
      signature with a regular expression included.

    * Two new commands --hidden-recipient (-R) and --hidden-encrypt-to
      encrypt to a user, but hide the identity of that user.  This is
      the same functionality as --throw-keyid, but can be used on a
      per-user basis.

    * Full algorithm names (e.g. "3DES", "SHA1", "ZIP") can now be
      used interchangeably with the short algorithm names (e.g. "S2",
      "H2", "Z1") anywhere algorithm names are used in GnuPG.


Noteworthy changes in version 1.3.0 (2002-10-18)
------------------------------------------------

    * The last piece of internal keyserver support has been removed,
      and now all keyserver access is done via the keyserver plugins.
      There is also a newer keyserver protocol used between GnuPG and
      the plugins, so plugins from earlier versions of GnuPG may not
      work properly.

    * The HKP keyserver plugin supports the new machine-readable key
      listing format for those keyservers that provide it.

    * When using a HKP keyserver with multiple DNS records (such as
      wwwkeys.pgp.net which has the addresses of multiple servers
      around the world), try all records until one succeeds.  Note
      that it depends on the LDAP library used whether the LDAP
      keyserver plugin does this as well.

    * The library dependencies for OpenLDAP seem to change fairly
      frequently, and GnuPG's configure script cannot guess all the
      combinations.  Use ./configure LDAPLIBS="-L libdir -l libs" to
      override the script and use the libraries selected.

    * Secret keys generated with --export-secret-subkeys are now
      indicated in key listings with a '#' after the "sec", and in
      --with-colons listings by showing no capabilities (no lowercase
      characters).

    * --trusted-key has been un-obsoleted, as it is useful for adding
      ultimately trusted keys from the config file.  It is identical
      to using --edit and "trust" to change a key to ultimately
      trusted.

    * Translations other than de are no longer distributed with the
      development branch.  This is due to the frequent text changes
      during development, which cause the translations to rapidly go
      out of date.


Version 1.2.8 (2006-12-07)
Version 1.2.7 (2004-12-27)
Version 1.2.6 (2004-08-25)
Version 1.2.5 (2004-07-26)
Version 1.2.4 (2003-12-23)
Version 1.2.3 (2003-08-21)
Version 1.2.2 (2003-05-01)
Version 1.2.1 (2002-10-25)
Version 1.2.0 (2002-09-21)


Noteworthy changes in version 1.1.92 (2002-09-11)
-------------------------------------------------

    * [IMPORTANT] The default configuration file is now
      ~/.gnupg/gpg.conf.  If an old ~/.gnupg/options is found it will
      still be used.  This change is required to have a more
      consistent naming scheme with forthcoming tools.

    * The use of MDCs have increased.  A MDC will be used if the
      recipients directly request it, if the recipients have AES,
      AES192, AES256, or TWOFISH in their cipher preferences, or if
      the chosen cipher has a blocksize not equal to 64 bits
      (currently this is also AES, AES192, AES256, and TWOFISH).

    * GnuPG will no longer automatically disable compression when
      processing an already-compressed file unless a MDC is being
      used.  This is to give the message a certain amount of
      resistance to the chosen-ciphertext attack while communicating
      with other programs (most commonly PGP earlier than version 7.x)
      that do not support MDCs.

    * The option --interactive now has the desired effect when
      importing keys.

    * The file permission and ownership checks on files have been
      clarified.  Specifically, the homedir (usually ~/.gnupg) is
      checked to protect everything within it.  If the user specifies
      keyrings outside this homedir, they are presumed to be shared
      keyrings and therefore *not* checked.  Configuration files
      specified with the --options option and the IDEA cipher
      extension specified with --load-extension are checked, along
      with their enclosing directories.

    * The configure option --with-static-rnd=auto allows one to build gpg
      with all available entropy gathering modules included.  At
      runtime the best usable one will be selected from the list
      linux, egd, unix.  This is also the default for systems lacking
      a /dev/random device.

    * The default character set is now taken from the current locale;
      it can still be overridden by the --charset option.  Using the
      option -vvv shows the used character set.

    * [REMOVED] --emulate-checksum-bug and --emulate-3des-s2k-bug have
      been removed.


Noteworthy changes in version 1.1.91 (2002-08-04)
-------------------------------------------------

    * All modules are now linked statically; the --load-extension
      option is in general not useful anymore.  The only exception is
      to specify the deprecated idea cipher.

    * The IDEA plugin has changed.  Previous versions of the IDEA
      plugin will no longer work with GnuPG.  However, the current
      version of the plugin will work with earlier GnuPG versions.

    * When using --batch with one of the --delete-key commands, the
      key must be specified by fingerprint.  See the man page for
      details.

    * There are now various ways to restrict the ability GnuPG has to
      exec external programs (for the keyserver helpers or photo ID
      viewers).  Read the README file for the complete list.

    * New export option to leave off attribute packets (photo IDs)
      during export.  This is useful when exporting to HKP keyservers
      which do not understand attribute packets.

    * New import option to repair during import the HKP keyserver
      mangling multiple subkeys bug.  Note that this cannot completely
      repair the damaged key as some crucial data is removed by the
      keyserver, but it does at least give you back one subkey.  This
      is on by default for keyserver --recv-keys, and off by default
      for regular --import.

    * The keyserver helper programs now live in
      /usr/[local/]libexec/gnupg by default.  If you are upgrading
      from 1.0.7, you might want to delete your old copies in
      /usr/[local/]bin.  If you use an OS that does not use libexec
      for whatever reason, use configure --libexecdir=/usr/local/lib
      to place the keyserver helpers there.

    * The LDAP keyserver handler now works properly with very old
      (version 1) LDAP keyservers.


Noteworthy changes in version 1.1.90 (2002-07-01)
-------------------------------------------------

    * New commands: --personal-cipher-preferences,
      --personal-digest-preferences, and
      --personal-compress-preferences allow the user to specify which
      algorithms are to be preferred.  Note that this does not permit
      using an algorithm that is not present in the recipient's
      preferences (which would violate the OpenPGP standard).  This
      just allows sorting the preferences differently.

    * New "group" command to refer to several keys with one name.

    * A warning is issued if the user forces the use of an algorithm
      that is not listed in the recipient's preferences.

    * Full revocation key (aka "designated revoker") support.

    * The preferred hash algorithms on a key are consulted when
      encrypting a signed message to that key.  Note that this is
      disabled by default by a SHA1 preference in
      --personal-digest-preferences.

    * --cert-digest-algo allows the user to specify the hash algorithm
      to use when signing a key rather than the default SHA1 (or MD5
      for PGP2 keys).  Do not use this feature unless you fully
      understand the implications of this.

    * --pgp7 mode automatically sets all necessary options to ensure
      that the resulting message will be usable by a user of PGP 7.x.

    * New --attribute-fd command for frontends and scripts to get the
      contents of attribute packets (i.e. photos)

    * In expert mode, the user can now re-sign a v3 key with a v4
      self-signature.  This does not change the v3 key into a v4 key,
      but it does allow the user to use preferences, primary ID flags,
      etc.

    * Significantly improved photo ID support on non-unixlike
      platforms.

    * The version number has jumped ahead to 1.1.90 to skip over the
      old version 1.1 and to get ready for the upcoming 1.2.

    * ElGamal sign and encrypt is not anymore allowed in the key
      generation dialog unless in expert mode.  RSA sign and encrypt
      has been added with the same restrictions.

    * [W32] Keyserver access does work with Windows NT.


Noteworthy changes in version 1.0.7 (2002-04-29)
------------------------------------------------

    * Secret keys are now stored and exported in a new format which
      uses SHA-1 for integrity checks.  This format renders the
      Rosa/Klima attack useless.  Other OpenPGP implementations might
      not yet support this, so the option --simple-sk-checksum creates
      the old vulnerable format.

    * The default cipher algorithm for encryption is now CAST5,
      default hash algorithm is SHA-1.  This will give us better
      interoperability with other OpenPGP implementations.

    * Symmetric encrypted messages now use a fixed file size if
      possible.  This is a tradeoff: it breaks PGP 5, but fixes PGP 2,
      6, and 7.  Note this was only an issue with RFC-1991 style
      symmetric messages.

    * Photographic user ID support.  This uses an external program to
      view the images.

    * Enhanced keyserver support via keyserver "plugins".  GnuPG comes
      with plugins for the NAI LDAP keyserver as well as the HKP email
      keyserver.  It retains internal support for the HKP HTTP
      keyserver.

    * Nonrevocable signatures are now supported.  If a user signs a
      key nonrevocably, this signature cannot be taken back so be
      careful!

    * Multiple signature classes are usable when signing a key to
      specify how carefully the key information (fingerprint, photo
      ID, etc) was checked.

    * --pgp2 mode automatically sets all necessary options to ensure
      that the resulting message will be usable by a user of PGP 2.x.

    * --pgp6 mode automatically sets all necessary options to ensure
      that the resulting message will be usable by a user of PGP 6.x.

    * Signatures may now be given an expiration date.  When signing a
      key with an expiration date, the user is prompted whether they
      want their signature to expire at the same time.

    * Revocation keys (designated revokers) are now supported if
      present.  There is currently no way to designate new keys as
      designated revokers.

    * Permissions on the .gnupg directory and its files are checked
      for safety.

    * --expert mode enables certain silly things such as signing a
      revoked user id, expired key, or revoked key.

    * Some fixes to build cleanly under Cygwin32.

    * New tool gpgsplit to split OpenPGP data formats into packets.

    * New option --preserve-permissions.

    * Subkeys created in the future are not used for encryption or
      signing unless the new option --ignore-valid-from is used.

    * Revoked user-IDs are not listed unless signatures are listed too
      or we are in verbose mode.

    * There is no default comment string with ascii armors anymore
      except for revocation certificates and --enarmor mode.

    * The command "primary" in the edit menu can be used to change the
      primary UID, "setpref" and "updpref" can be used to change the
      preferences.

    * Fixed the preference handling; since 1.0.5 they were erroneously
      matched against against the latest user ID and not the given one.

    * RSA key generation.

    * Merged Stefan's patches for RISC OS in.  See comments in
      scripts/build-riscos.

    * It is now possible to sign and conventional encrypt a message (-cs).

    * The MDC feature flag is supported and can be set by using
      the "updpref" edit command.

    * The status messages GOODSIG and BADSIG are now returning the primary
      UID, encoded using %XX escaping (but with spaces left as spaces,
      so that it should not break too much)

    * Support for GDBM based keyrings has been removed.

    * The entire keyring management has been revamped.

    * The way signature stati are store has changed so that v3
      signatures can be supported. To increase the speed of many
      operations for existing keyrings you can use the new
      --rebuild-keydb-caches command.

    * The entire key validation process (trustdb) has been revamped.
      See the man page entries for --update-trustdb, --check-trustdb
      and --no-auto-check-trustdb.

    * --trusted-keys is again obsolete, --edit can be used to set the
      ownertrust of any key to ultimately trusted.

    * A subkey is never used to sign keys.

    * Read only keyrings are now handled as expected.

    See-also: gnupg-announce/2002q2/000135.html


Noteworthy changes in version 1.0.6 (2001-05-29)
------------------------------------------------

    * Security fix for a format string bug in the tty code.

    * Fixed format string bugs in all PO files.

    * Removed Russian translation due to too many bugs.  The FTP
      server has an unofficial but better translation in the contrib
      directory.

    * Fixed expire time calculation and keyserver access.

    * The usual set of minor bug fixes and enhancements.

    * non-writable keyrings are now correctly handled.

    See-also: gnupg-announce/2001q2/000123.html


Noteworthy changes in version 1.0.5 (2001-04-29)
------------------------------------------------

    * WARNING: The semantics of --verify have changed to address a
      problem with detached signature detection. --verify now ignores
      signed material given on stdin unless this is requested by using
      a "-" as the name for the file with the signed material.  Please
      check all your detached signature handling applications and make
      sure that they don't pipe the signed material to stdin without
      using a filename together with "-" on the the command line.

    * WARNING: Corrected hash calculation for input data larger than
      512M - it was just wrong, so you might notice bad signature in
      some very big files.  It may be wise to keep an old copy of
      GnuPG around.

    * Secret keys are no longer imported unless you use the new option
      --allow-secret-key-import.  This is a kludge and future versions will
      handle it in another way.

    * New command "showpref" in the --edit-key menu to show an easier
      to understand preference listing.

    * There is now the notation of a primary user ID.  For example, it
      is printed with a signature verification as the first user ID;
      revoked user IDs are not printed there anymore.  In general the
      primary user ID is the one with the latest self-signature.

    * New --charset=utf-8 to bypass all internal conversions.

    * Large File Support (LFS) is now working.

    * New options: --ignore-crc-error, --no-sig-create-check,
      --no-sig-cache, --fixed-list-mode, --no-expensive-trust-checks,
      --enable-special-filenames and --use-agent.  See man page.

    * New command --pipemode, which can be used to run gpg as a
      co-process.  Currently only the verification of detached
      signatures are working.  See doc/DETAILS.

    * Keyserver support for the W32 version.

    * Rewritten key selection code so that GnuPG can better cope with
      multiple subkeys, expire dates and so.  The drawback is that it
      is slower.

    * A whole lot of bug fixes.

    * The verification status of self-signatures are now cached. To
      increase the speed of key list operations for existing keys you
      can do the following in your GnuPG homedir (~/.gnupg):
         cp pubring.gpg pubring.gpg.save && gpg --export-all >x && \
         rm pubring.gpg && gpg --import x
      Only v4 keys (i.e not the old RSA keys) benefit from this caching.

    * New translations: Estonian, Turkish.

    See-also: gnupg-announce/2001q2/000122.html


Noteworthy changes in version 1.0.4 (2000-10-17)
------------------------------------------------

    * Fixed a serious bug which could lead to false signature verification
      results when more than one signature is fed to gpg.  This is the
      primary reason for releasing this version.

    * New utility gpgv which is a stripped down version of gpg to
      be used to verify signatures against a list of trusted keys.

    * Rijndael (AES) is now supported and listed with top preference.

    * --with-colons now works with --print-md[s].

    See-also: gnupg-announce/2000q4/000082.html


Noteworthy changes in version 1.0.3 (2000-09-18)
------------------------------------------------

    * Fixed problems with piping to/from other MS-Windows software

    * Expiration time of the primary key can be changed again.

    * Revoked user IDs are now marked in the output of --list-key

    * New options --show-session-key and --override-session-key
      to help the British folks to somewhat minimize the danger
      of this Orwellian RIP bill.

    * New options --merge-only and --try-all-secrets.

    * New configuration option --with-egd-socket.

    * The --trusted-key option is back after it left us with 0.9.5

    * RSA is supported. Key generation does not yet work but will come
      soon.

    * CAST5 and SHA-1 are now the default algorithms to protect the key
      and for symmetric-only encryption. This should solve a couple
      of compatibility problems because the old algorithms are optional
      according to RFC2440

    * Twofish and MDC enhanced encryption is now used.  PGP 7 supports
      this.  Older versions of GnuPG don't support it, so they should be
      upgraded to at least 1.0.2

    See-also: gnupg-announce/2000q3/000075.html


Noteworthy changes in version 1.0.2 (2000-07-12)
----------------------------------------------

    * Fixed expiration handling of encryption keys.

    * Add an experimental feature to do unattended key generation.

    * The user is now asked for the reason of revocation as required
      by the new OpenPGP draft.

    * There is a ~/.gnupg/random_seed file now which saves the
      state of the internal RNG and increases system performance
      somewhat.  This way the full entropy source is only used in
      cases were it is really required.
      Use the option --no-random-seed-file to disable this feature.

    * New options --ignore-time-conflict and --lock-never.

    * Some fixes for the W32 version.

    * The entropy.dll is not anymore used by the W32 version but replaced
      by code derived from Cryptlib.

    * Encryption is now much faster: About 2 times for 1k bit keys
      and 8 times for 4k keys.

    * New encryption keys are generated in a way which allows a much
      faster decryption.

    * New command --export-secret-subkeys which outputs the
      the _primary_ key with it's secret parts deleted.  This is
      useful for automated decryption/signature creation as it
      allows one to keep the real secret primary key offline and
      thereby protecting the key certificates and allowing to
      create revocations for the subkeys.  See the FAQ for a
      procedure to install such secret keys.

    * Keygeneration now writes to the first writeable keyring or
      as default to the one in the homedirectory.  Prior versions
      ignored all --keyring options.

    * New option --command-fd to take user input from a file descriptor;
      to be used with --status-fd by software which uses GnuPG as a backend.

    * There is a new status PROGRESS which is used to show progress during
      key generation.

    * Support for the new MDC encryption packets.  To create them either
      --force-mdc must be use or cipher algorithm with a blocksize other
      than 64 bits is to be used.  --openpgp currently disables MDC packets
      entirely.  This option should not yet be used.

    * New option --no-auto-key-retrieve to disable retrieving of
      a missing public key from a keyserver, when a keyserver has been set.

    * Danish translation

    See-also: gnupg-announce/2000q3/000069.html


Noteworthy changes in version 1.0.1 (1999-12-16)
-----------------------------------

    * New command --verify-files.  New option --fast-list-mode.

    * $http_proxy is now used when --honor-http-proxy is set.

    * Fixed some minor bugs and the problem with conventional encrypted
      packets which did use the gpg v3 partial length headers.

    * Add Indonesian and Portuguese translations.

    * Fixed a bug with symmetric-only encryption using the non-default 3DES.
      The option --emulate-3des-s2k-bug may be used to decrypt documents
      which have been encrypted this way; this should be done immediately
      as this workaround will be remove in 1.1

    * Can now handle (but not display) PGP's photo IDs. I don't know the
      format of that packet but after stripping a few bytes from the start
      it looks like a JPEG (at least my test data).  Handling of this
      package is required because otherwise it would mix up the
      self signatures and you can't import those keys.

    * Passing non-ascii user IDs on the commandline should now work in all
      cases.

    * New keys are now generated with an additional preference to Blowfish.

    * Removed the GNU Privacy Handbook from the distribution as it will go
      into a separate one.

    See-also: gnupg-announce/1999q4/000050.html


Noteworthy changes in version 1.0.0 (1999-09-07)
-----------------------------------

    * Add a very preliminary version of the GNU Privacy Handbook to
      the distribution (lynx doc/gph/index.html).

    * Changed the version number to GnuPG 2001 ;-)

    See-also: gnupg-announce/1999q3/000037.html


Noteworthy changes in version 0.9.11 (1999-09-03)
------------------------------------

    * UTF-8 strings are now correctly printed (if --charset is set correctly).
      Output of --with-colons remains C-style escaped UTF-8.

    * Workaround for a problem with PGP 5 detached signature in textmode.

    * Fixed a problem when importing new subkeys (duplicated signatures).

    See-also: gnupg-announce/1999q3/000036.html


Noteworthy changes in version 0.9.10 (1999-07-23)
------------------------------------

    * Some strange new options to help pgpgpg

    * Cleaned up the dox a bit.

    See-also: gnupg-announce/1999q3/000034.html


Noteworthy changes in version 0.9.9
-----------------------------------

    * New options --[no-]utf8-strings.

    * New edit-menu commands "enable" and "disable" for entire keys.

    * You will be asked for a filename if gpg cannot deduce one.

    * Changes to support libtool which is needed for the development
      of libgcrypt.

    * New script tools/lspgpot to help transferring assigned
      trustvalues from PGP to GnuPG.

    * New commands --lsign-key and made --sign-key a shortcut for --edit
      and sign.

    * New options (#122--126 ;-) --[no-]default-recipient[-self],
      --disable-{cipher,pubkey}-algo. See the man page.

    * Enhanced info output in case of multiple recipients and fixed exit code.

    * New option --allow-non-selfsigned-uid to work around a problem with
      the German IN way of separating signing and encryption keys.

    See-also: gnupg-announce/1999q3/000028.html


Noteworthy changes in version 0.9.8 (1999-06-26)
-----------------------------------

    * New subcommand "delsig" in the edit menu.

    * The name of the output file is not anymore the one which is
      embedded in the processed message, but the used filename with
      the extension stripped.  To revert to the old behaviour you can
      use the option --use-embedded-filename.

    * Another hack to cope with pgp2 generated detached signatures.

    * latin-2 character set works (--charset=iso-8859-2).

    * New option --with-key-data to list the public key parameters.
      New option -N to insert notations and a --set-policy-url.
      A couple of other options to allow resetting of options.

    * Better support for HPUX.

    See-also: gnupg-announce/1999q2/000016.html


Noteworthy changes in version 0.9.7 (1999-05-23)
-----------------------------------

    * Add some work arounds for a bugs in pgp 2 which led to bad signatures
      when used with canonical texts in some cases.

    * Enhanced some status outputs.

    See-also: gnupg-announce/1999q2/000000.html


Noteworthy changes in version 0.9.6 (1999-05-06)
-----------------------------------

    * Twofish is now statically linked by default. The experimental 128 bit
      version is now disabled.	Full support will be available as soon as
      the OpenPGP WG has decided on an interpretation of rfc2440.

    * Dropped support for the ancient Blowfish160 which is not OpenPGP.

    * Merged gpgm and gpg into one binary.

    * Add "revsig" and "revkey" commands to the edit menu.  It is now
      possible to revoke signature and subkeys.


Noteworthy changes in version 0.9.5 (1999-03-20)
-----------------------------------

    * New command "lsign" in the keyedit menu to create non-exportable
      signatures.  Removed --trusted-keys option.

    * A bunch of changes to the key validation code.

    * --list-trust-path now has an optional --with-colons format.

    * New command --recv-keys to import keys from an keyserver.


Noteworthy changes in version 0.9.4 (1999-03-08)
-----------------------------------

    * New configure option --enable-static-rnd=[egd|linux|unix|none]
      to select a random gathering module for static linking.

    * The original text is now verbatim copied to a cleartext signed message.

    * Bugfixes but there are still a couple of bugs.


Noteworthy changes in version 0.9.3 (1999-02-19)
-----------------------------------

    * Changed the internal design of getkey which now allows a
      efficient lookup of multiple keys and add a word match mode.

    * New options --[no-]encrypt-to.

    * Some changes to the configure stuff.  Switched to automake 1.4.
      Removed intl/ from CVS, autogen.sh now uses gettextize.

    * Preferences now include Twofish. Removed preference to Blowfish with
      a special hack to suppress the "not listed in preferences" warning;
      this is to allow us to switch completely to Twofish in the near future.

    * Changed the locking stuff.

    * Print all user ids of a good signature.


Noteworthy changes in version 0.9.2 (1999-01-01)
-----------------------------------

    * add some additional time warp checks.

    * Option --keyserver and command --send-keys to utilize HKP servers.

    * Upgraded to zlib 1.1.3 and fixed an inflate bug

    * More cleanup on the cleartext signatures.


Noteworthy changes in version 0.9.1 (1999-01-01)
-----------------------------------

    * Polish language support.

    * When querying the passphrase, the key ID of the primary key is
      displayed along with the one of the used secondary key.

    * Fixed a bug occurring when decrypting pgp 5 encrypted messages,
      fixed an infinite loop bug in the 3DES code and in the code
      which looks for trusted signatures.

    * Fixed a bug in the mpi library which caused signatures not to
      compare okay.

    * Rewrote the handling of cleartext signatures; the code is now
      better maintainable (I hope so).

    * New status output VALIDSIG only for valid signatures together
      with the fingerprint of the signer's key.


Noteworthy changes in version 0.9.0 (1998-12-23)
-----------------------------------

    * --export does now only exports rfc2440 compatible keys; the
      old behaviour is available with --export-all.
      Generation of v3 ElGamal (sign and encrypt) keys is not longer
      supported.

    * Fixed the uncompress bug.

    * Rewrote the rndunix module. There are two environment variables
      used for debugging now: GNUPG_RNDUNIX_DBG give the file to write
      debugging information (use "-" for stdout) and if GNUPG_RNDUNIX_DBGALL
      is set, all programs which are only tried are also printed.

    * New option --escape-from-lines to "dash-escape" "From " lines to
      prevent mailers to change them to ">From ".  This is not enabled by
      default because it is not in compliance with rfc2440 - however, you
      should turn it on.


Noteworthy changes in version 0.4.5 (1998-12-08)
-----------------------------------

    * The keyrings and the trustdb is now locked, so that
      other GnuPG processes won't damage these files.  You
      may want to put the option --lock-once into your options file.

    * The latest self-signatures are now used; this enables --import
      to see updated preferences etc.

    * Import of subkeys should now work.

    * Random gathering modules may now be loaded as extensions. Add
      such a module for most Unices but it is very experimental!

    * Brazilian language support.


Noteworthy changes in version 0.4.4 (1998-11-20)
-----------------------------------

    * Fixed the way the key expiration time is stored. If you have
      an expiration time on your key you should fix it with --edit-key
      and the command "expire".  I apologize for this inconvenience.

    * Add option --charset to support "koi8-r" encoding of user ids.
      (Not yet tested).

    * Preferences should now work again. You should run
      "gpgm --check-trustdb \*" to rebuild all preferences.

    * Checking of certificates should now work but this needs a lot
      of testing.  Key validation values are now cached in the
      trustdb; they should be recalculated as needed, but you may
      use --check-trustdb or --update-trustdb to do this.

    * Spanish translation by Urko Lusa.

    * Patch files are from now on signed.  See the man page
      for the new option --not-dash-escaped.

    * New syntax: --edit-key <userID> [<commands>]
      If you run it without --batch the commands are executed and then
      you are put into normal mode unless you use "quit" or "save" as
      one of the commands.  When in batch mode, the program quits after
      the last command, so you have to use "save" if you did some changes.
      It does not yet work completely, but may be used to list so the
      keys etc.


Noteworthy changes in version 0.4.3 (1998-11-08)
-----------------------------------

    * Fixed the gettext configure bug.

    * Kludge for RSA keys: keyid and length of a RSA key are
      correctly reported, but you get an error if you try to use
      this key (If you do not have the non-US version).

    * Experimental support for keyrings stored in a GDBM database.
      This is *much* faster than a standard keyring.  You will notice
      that the import gets slower with time; the reason is that all
      new keys are used to verify signatures of previous inserted
      keys.  Use "--keyring gnupg-gdbm:<name-of-gdbm-file>".  This is
      not (yet) supported for secret keys.

    * A Russian language file in the distribution (alternatives are in
      the contrib directory of the FTP servers)

    * commandline option processing now works as expected for GNU programs
      with the exception that you can't mix options and normal arguments.

    * Now --list-key lists all matching keys.  This is needed in some
      other places too.


Noteworthy changes in version 0.4.2 (1998-10-18)
-----------------------------------

    * This is only a snapshot: There are still a few bugs.

    * Fixed this huge memory leak.

    * Redesigned the trust database:  You should run "gpgm --check-trustdb".
      New command --update-trustdb, which adds new key from the public
      keyring into your trustdb

    * Fixed a bug in the armor code, leading to invalid packet errors.
      (a workaround for this was to use --no-armor).  The shorten line
      length (64 instead of 72) fixes a problem with pgp5 and keyservers.

    * comment packets are not anymore generated. "--export" filters
      them out.  One Exception:  The comment packets in a secret keyring
      are still used because they carry the factorization of the public
      prime product.

    * --import now only looks for KEYBLOCK headers, so you can now simply
      remove the "- " in front of such a header if someone accidentally signed
      such a message or the keyblock is part of a cleartext signed message.

    * --with-colons now lists the key expiration time and not anymore
      the valid period.

    * Some keyblocks created with old releases have a wrong sequence
      of packets, so that the keyservers don't accept these keys.
      Simply using "--edit-key" fixes the problem.

    * New option --force-v3-sigs to generate signed messages which are
      compatible to PGP 5.

    * Add some code to support DLD (for non ELF systems) - but this is
      not tested because my BSD box is currently broken.

    * New command "expire" in the edit-key menu.



Noteworthy changes in version 0.4.1 (1998-10-07)
-----------------------------------

    * A secondary key is used when the primary key is specified but cannot
      be used for the operation (if it is a sign-only key).

    * GNUPG can now handle concatenated armored messages:  There is still a
      bug if different kinds of messages are mixed.

    * Iterated+Salted passphrases now work.  If want to be sure that PGP5
      is able to handle them you may want to use the options
	"--s2k-mode 3 --s2k-cipher-algo cast5 --s2k-digest-algo sha1"
      when changing a passphrase.

    * doc/OpenPGP talks about OpenPGP compliance, doc/HACKING gives
      a few hints about the internal structure.

    * Checked gnupg against the August 1998 draft (07) and I believe
      it is in compliance with this document (except for one point).

    * Fixed some bugs in the import merging code and rewrote some
      code for the trustdb.


Noteworthy changes in version 0.4.0 (1998-09-18)
-----------------------------------

    * Triple DES is now supported.  Michael Roth did this piece of
      needed work.  We have now all the coded needed to be OpenPGP
      compliant.

    * Added a simple rpm spec file (see INSTALL).

    * detached and armored signatures are now using "PGP SIGNATURE",
      except when --rfc1991 is used.

    * All times which are not in the yyyy-mm-dd format are now printed
      in local time.


Noteworthy changes in version 0.3.5 (1998-09-14)
-----------------------------------

    * New option --throw-keyid to create anonymous enciphered messages.
      If gpg detects such a message it tires all available secret keys
      in turn so decode it.  This is a gnupg extension and not in OpenPGP
      but it has been discussed there and afaik some products use this
      scheme too (Suggested by Nimrod Zimmerman).

    * Fixed a bug with 5 byte length headers.

    * --delete-[secret-]key is now also available in gpgm.

    * cleartext signatures are not anymore converted to LF only.

    * Fixed a trustdb problem.	Run "gpgm --check-trustdb" to fix old
      trust dbs.

    * Building in another directory should now work.

    * Weak key detection mechanism (Niklas Hernaeus).


Noteworthy changes in version 0.3.4 (1998-08-11)
-----------------------------------

    * New options --comment and --set-filename; see g10/OPTIONS

    * yes/no, y/n localized.

    * Fixed some bugs.


Noteworthy changes in version 0.3.3 (1998-08-08)
-----------------------------------

    * IMPORTANT: I found yet another bug in the way the secret keys
      are encrypted - I did it the way pgp 2.x did it, but OpenPGP
      and pgp 5.x specify another (in some aspects simpler) method.
      To convert your secret keys you have to do this:
	1. Build the new release but don't install it and keep
	   a copy of the old program.
	2. Disable the network, make sure that you are the only
	   user, be sure that there are no Trojan horses etc ....
	3. Use your old gpg (version 0.3.1 or 0.3.2) and set the
	   passphrases of ALL your secret keys to empty!
	   (gpg --change-passphrase your-user-id).
	4. Save your ownertrusts (see the next point)
	5. rm ~/.gnupg/trustdb.gpg
	6. install the new version of gpg (0.3.3)
	7. For every secret key call "gpg --edit-key your-user-id",
	   enter "passwd" at the prompt, follow the instructions and
	   change your password back, enter "save" to store it.
	8. Restore the ownertrust (see next point).

    * The format of the trust database has changed; you must delete
      the old one, so gnupg can create a new one.
      IMPORTANT: Use version 0.3.1 or .2 to save your assigned ownertrusts
      ("gpgm --list-ownertrust >saved-trust"); then build this new version
      and restore the ownertrust with this new version
      ("gpgm --import-ownertrust saved-trust").  Please note that
      --list-ownertrust has been renamed to --export-ownertrust in this
      release and it does now only export defined ownertrusts.

    * The command --edit-key now provides a commandline driven menu
      which can be used for various tasks.  --sign-key is only an
      an alias to --edit-key and maybe removed in future: use the
      command "sign" of this new menu - you can select which user ids
      you want to sign.

    * Alternate user ids can now be created an signed.

    * Owner trust values can now be changed with --edit-key (trust)

    * GNUPG can now run as a coprocess; this enables sophisticated
      frontends.  tools/shmtest.c is a simple sample implementation.
      This needs some more work: all tty_xxx() are to be replaced
      by cpr_xxx() and some changes in the display logics is needed.

    * Removed options --gen-prime and --gen-random.

    * Removed option --add-key; use --edit-key instead.

    * Removed option --change-passphrase; use --edit-key instead.

    * Signatures are now checked even if the output file could not
      be created. Command "--verify" tries to find the detached data.

    * gpg now disables core dumps.

    * compress and symmetric cipher preferences are now used.
      Because there is no 3DES yet, this is replaced by Blowfish.

    * We have added the Twofish as an experimental cipher algorithm.
      Many thanks to Matthew Skala for doing this work.
      Twofish is the AES submission from Schneier et al.; see
      "www.counterpane.com/twofish.html" for more information.

    * Started with a help system: If you enter a question mark at some
      prompt; you should get a specific help for this prompt.

    * There is no more backup copy of the secret keyring.

    * A lot of new bugs. I think this release is not as stable as
      the previous one.


Noteworthy changes in version 0.3.2 (1998-07-09)
-----------------------------------

    * Fixed some bugs when using --textmode (-seat)

    * Now displays the trust status of a positive verified message.

    * Keyrings are now scanned in the sequence they are added with
      --[secret-]keyring.  Note that the default keyring is implicitly
      added as the very first one unless --no-default-keyring is used.

    * Fixed setuid and dlopen bug.


Noteworthy changes in version 0.3.1 (1998-07-06)
-----------------------------------

    * Partial headers are now written in the OpenPGP format if
      a key in a v4 packet is used.

    * Removed some unused options, removed the gnupg.sig stuff.

    * Key lookup by name now returns a key which can be used for
      the desired action.

    * New options --list-ownertrust (gpgm) to make a backup copy
      of the ownertrust values you assigned.

    * clear signature headers are now in compliance with OpenPGP.


Noteworthy changes in version 0.3.0 (1998-06-25)
-----------------------------------

    * New option --emulate-checksum-bug.  If your passphrase does not
      work anymore, use this option and --change-passphrase to rewrite
      your passphrase.

    * More complete v4 key support: Preferences and expiration time
      is set into the self signature.

    * Key generation defaults to DSA/ElGamal keys, so that new keys are
      interoperable with pgp5

    * DSA key generation is faster and key generation does not anymore
      remove entropy from the random generator (the primes are public
      parameters, so there is really no need for a cryptographic secure
      prime number generator which we had used).

    * A complete new structure for representing the key parameters.

    * Removed most public key knowledge into the cipher library.

    * Support for dynamic loading of new algorithms.

    * Moved tiger to an extension module.


Noteworthy changes in version 0.2.19 (1998-05-29)
------------------------------------

    * Replaced /dev/urandom in checks with new tool mk-tdata.

    * Some assembler file cleanups; some more functions for the Alpha.

    * Tiger has now the OpenPGP assigned number 6.  Because the OID has
      changed, old signatures using this algorithm can't be verified.

    * gnupg now encrypts the compressed packed and not any longer in the
      reverse order; anyway it can decrypt both versions. Thanks to Tom
      for telling me this (not security related) bug.

    * --add-key works and you are now able to generate subkeys.

    * It is now possible to generate ElGamal keys in v4 packets to create
      valid OpenPGP keys.

    * Some new features for better integration into MUAs.


Noteworthy changes in version 0.2.18 (1998-05-15)
------------------------------------

    * Split cipher/random.c, add new option "--disable-dev-random"
      to configure to support the development of a random source for
      other systems. Prepared sourcefiles rand-unix.c, rand-w32.c
      and rand-dummy.c (which is used to allow compilation on systems
      without a random source).

    * Fixed a small bug in the key generation (it was possible that 48 bits
      of a key were not taken from the random pool)

    * Add key generation for DSA and v4 signatures.

    * Add a function trap_unaligned(), so that a SIGBUS is issued on
      Alphas and not the slow emulation code is used. And success: rmd160
      raised a SIGBUS.

    * Enhanced the formatting facility of argparse and changed the use of
      \r,\v to @ because gettext does not like it.

    * New option "--compress-algo 1" to allow the creation of compressed
      messages which are readable by PGP and "--print-md" (gpgm) to make
      speed measurement easier.


Noteworthy changes in version 0.2.17 (1998-05-04)
------------------------------------

    * Comment packets are now of private type 61.

    * Passphrase code still used a 160 bit blowfish key, added a
      silly workaround. Please change your passphrase again - sorry.

    * Conventional encryption now uses a type 3 packet to describe the
      used algorithms.

    * The new algorithm number for Blowfish is 20, 16 is still used for
      encryption only; for signing it is only used when it is in a v3 packet,
      so that GNUPG keys are still valid.


Noteworthy changes in version 0.2.16 (1998-04-28)
------------------------------------

    * Add experimental support for the TIGER/192 message digest algorithm.
      (But there is only a dummy ASN OID).

    * Standard cipher is now Blowfish with 128 bit key in OpenPGP's CFB
      mode. I renamed the old cipher to Blowfish160. Because the OpenPGP
      group refused to assign me a number for Blowfish160, I have to
      drop support for this in the future. You should use
      "--change-passphrase" to recode your current passphrase with 128
      bit Blowfish.


Noteworthy changes in version 0.2.15 (1998-04-09)
------------------------------------

    * Fixed a bug with the old checksum calculation for secret keys.
      If you run the program without --batch, a warning does inform
      you if your secret key needs to be converted; simply use
      --change-passphrase to recalculate the checksum. Please do this
      soon, as the compatible mode will be removed sometime in the future.

    * CAST5 works (using the PGP's special CFB mode).

    * Again somewhat more PGP 5 compatible.

    * Some new test cases

Noteworthy changes in version 0.2.14 (1998-04-02)
------------------------------------

    * Changed the internal handling of keyrings.

    * Add support to list PGP 5 keyrings with subkeys

    * Timestamps of signatures are now verified.

    * A expiration time can now be specified during key generation.

    * Some speedups for Blowfish and SHA-1, rewrote SHA-1 transform.
      Reduced the amount of random bytes needed for key generation in
      some cases.


Noteworthy changes in version 0.2.13 (1998-03-10)
------------------------------------

    * Verify of DSA signatures works.

    * Re-implemented the slower random number generator.


Noteworthy changes in version 0.2.12 (1998-03-07)
------------------------------------

    * --delete-key checks that there is no secret key. The new
      option --delete-secret-key maybe used to delete a secret key.

    * "-kv" now works as expected. Options "--list-{keys,sigs]"
      and "--check-sigs" are now working.

    * New options "--verify" and "--decrypt" to better support integration
      into MUAs (partly done for Mutt).

    * New option "--with-colons" to make parsing of key lists easier.

Noteworthy changes in version 0.2.11 (1998-03-02)
------------------------------------

    * GPG now asks for a recipient's name if option "-r" is not used.

    * If there is no good trust path, the program asks whether to use
      the public keys anyway.

    * "--delete-key" works for public keys. What semantics shall I use
      when there is a secret key too? Delete the secret key or leave him
      and auto-regenerate the public key, next time the secret key is used?

Noteworthy changes in version 0.2.10 (1998-02-27)
------------------------------------

    * Code for the alpha is much faster (about 20 times); the data
      was misaligned and the kernel traps this, so nearly all time
      was used by system to trap the misalignments and to write
      syslog messages. Shame on me and thanks to Ralph for
      pointing me at this while drinking some beer yesterday.

    * Changed some configure options and add an option
      --disable-m-guard to remove the memory checking code
      and to compile everything with optimization on.

    * New environment variable GNUPGHOME, which can be used to set
      another homedir than ~/.gnupg.  Changed default homedir for
      Windoze version to c:/gnupg.

    * Fixed detached signatures; detached PGP signatures caused a SEGV.

    * The Windoze version works (as usual w/o a strong RNG).


Noteworthy changes in version 0.2.9 (1998-02-26)
-----------------------------------

    * Fixed FreeBSD bug.

    * Added a simple man page.

    * Switched to automake1.2f and a newer gettext.

Noteworthy changes in version 0.2.8 (1998-02-24)
-----------------------------------

    * Changed the name to GNUPG, the binaries are called gpg and gpgm.
      You must rename rename the directory "~/.g10" to ~/.gnupg/, rename
      {pub,sec}ring.g10 to {pub,sec}ring.gpg, trustdb.g10 to trustdb.gpg
      and g10.sig to gnupg.sig.

    * New or changed passphrases are now salted.


Noteworthy changes in version 0.2.7 (1998-02-18)
-----------------------------------

    * New command "gen-revoke" to create a key revocation certificate.

    * New option "homedir" to set the homedir (which defaults to "~/.g10").
      This directory is created if it does not exists (only the last
      part of the name and not the complete hierarchy)

    * Command "import" works. (Try: "finger gcrypt@ftp.guug.de|g10 --import")

    * New commands "dearmor/enarmor" for g10maint.  These are mainly
      used for internal test purposes.

    * Option --version now conforming to the GNU standards and lists
      the available ciphers, message digests and public key algorithms.

    * Assembler code for m68k (not tested).

    * "make check" works.

Noteworthy changes in version 0.2.6 (1998-02-13)
-----------------------------------

    * Option "--export" works.


Noteworthy changes in version 0.2.5 (1998-02-12)
-----------------------------------

    * Added zlib for systems which don't have it.
      Use "./configure --with-zlib" to link with the static version.

    * Generalized some more functions and rewrote the encoding of
      message digests into MPIs.

    * Enhanced the checkit script


Noteworthy changes in version 0.2.4 (1998-02-11)
-----------------------------------

    * nearly doubled the speed of the ElGamal signature verification.

    * backup copies of keyrings are created.

    * assembler stuff for Pentium; gives about 15% better performance.

    * fixed a lot of bugs.


Noteworthy changes in version 0.2.3 (1998-02-09)
-----------------------------------

    * Found a bug in the calculation of ELG fingerprints. This is now
      fixed, but all existing fingerprints and keyids for ELG keys
      are not any more valid.

    * armor should now work; including clear signed text.

    * moved some options to the new program g10maint

    * It's now 64 bit clean and runs fine on an alpha--linux.

    * Key generation is much faster now.  I fixed this by using not
      so strong random number for the primes (this was a bug because the
      ElGamal primes are public parameters and it does not make sense
      to generate them from strong random).  The real secret is the x value
      which is still generated from strong (okay: /dev/random) random bits.

    * added option "--status-fd": see g10/OPTIONS

    * We have secure memory on systems which support mlock().
      It is not complete yet, because we do not have signal handler
      which does a cleanup in very case.
      We should also check the ulimit for the user in the case
      that the admin does not have set a limit on locked pages.

    * started with internationalization support.

    * The logic to handle the web of trust is now implemented. It is
      has some bugs; but I'm going to change the algorithm anyway.
      It works by calculating the trustlevel on the fly.  It may ask
      you to provide trust parameters if the calculated trust probability
      is too low.  I will write a paper which discusses this new approach.

    * a couple of changes to the configure script.

    * New option "--quick-random" which uses a much quicker random
      number generator.  Keys generated while this option is in effect
      are flags with "INSECURE!" in the user-id.  This is a development
      only option.

    * Read support for new version packets (OpenPGP).

    * Comment packets are now of correct OpenPGP type 16. Old comment
      packets written by G10 are detected because they always start with
      a hash which is an invalid version byte.

    * The string "(INSECURE!)" is appended to a new user-id if this
      is generated on a system without a good random number generator.


Version 0.2.2 (1998-02-09)
Version 0.2.1 (1998-01-28)
Version 0.2.0 (1998-01-25)
Version 0.1.3 (1998-01-12)
Version 0.1.2 (1998-01-07)
Version 0.1.1 (1998-01-07)
Version 0.1.0 (1998-01-05)
Version 0.0.0 (1997-12-20)


 Copyright (C) 1998-2017 Free Software Foundation, Inc.
 Copyright (C) 1997-2017 Werner Koch

 This file is free software; as a special exception the author gives
 unlimited permission to copy and/or distribute it, with or without
 modifications, as long as this notice is preserved.

 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
