[Announce] GnuPG 2.3.5 released
wk at gnupg.org
Thu Apr 21 18:15:50 CEST 2022
We are pleased to announce the availability of a new GnuPG release:
version 2.3.5. This is another release in the stable 2.3 series which
introduces new options, improves the performance, and fixes some bugs.
See below for details.
What is GnuPG
The GNU Privacy Guard (GnuPG, GPG) is a complete and free implementation
of the OpenPGP and S/MIME standards.
GnuPG allows to encrypt and sign data and communication, features a
versatile key management system as well as access modules for public key
directories. GnuPG itself is a command line tool with features for easy
integration with other applications. The separate library GPGME provides
a uniform API to use the GnuPG engine by software written in common
programming languages. A wealth of frontend applications and libraries
making use of GnuPG are available. As an universal crypto engine GnuPG
provides support for S/MIME and Secure Shell in addition to OpenPGP.
GnuPG is Free Software (meaning that it respects your freedom). It can
be freely used, modified and distributed under the terms of the GNU
General Public License.
Three different series of GnuPG are actively maintained:
- Version 2.3 is the current stable version with a lot of new features
compared to 2.2. This announcement is about the latest release of
- Version 2.2 is our LTS (long term support) version and guaranteed to
be maintained at least until the end of 2024.
- Version 1.4 is only maintained to allow decryption of very old data
which is, for security reasons, not anymore possible with other GnuPG
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.
* 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.
* gpg: Remove restrictions for the name part of a user-id.
* 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
* gpgtar: Support file names longer than MAX_PATH on Windows.
* gpgtar: Use a pipe for decryption and thus avoid memory
* 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
* dirmngr: Support the use of ECDSA for CRLs and OCSP.
* dirmngr: Map all gnupg.net addresses to the Ubuntu keyserver.
* ssh: Return a faked response for the new session-bind extension.
* 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.
* agent: Use "Created:" field for creation time. [T5538]
* scdaemon Fix error handling for a PC/SC reader selected with
* 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.
* scdaemon: Enhance PASSWD command to accept KEYGRIP optionally.
* scdaemon: Fix memory leak in ccid-driver. [rG8ac92f0e80]
* tpm: Always use hexgrip when storing a key password.
* dirmngr: Make WKD lookups work for resolvers not handling SRV
* 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.
* gpgconf: Fix component table when not building without TPM
* gpgconf: Silence warnings from parsing the option files. [T5874]
* gpgconf: Do not list ignored options and mark forced options as
* 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]
Getting the Software
Please follow the instructions found at <https://gnupg.org/download/> or
GnuPG may be downloaded from one of the GnuPG mirror sites or direct
from its primary FTP server. The list of mirrors can be found at
<https://gnupg.org/download/mirrors.html>. Note that GnuPG is not
available at ftp.gnu.org.
The GnuPG source code compressed using BZIP2 and its OpenPGP signature
are available here:
An installer for Windows without any graphical frontend except for a
very minimal Pinentry tool is available here:
The source used to build the Windows installer can be found in the same
directory with a ".tar.xz" suffix.
Checking the Integrity
In order to check that the version of GnuPG which you are going to
install is an original and unmodified one, you can do it in one of
the following ways:
* If you already have a version of GnuPG installed, you can simply
verify the supplied signature. For example to verify the signature
of the file gnupg-2.3.5.tar.bz2 you would use this command:
gpg --verify gnupg-2.3.5.tar.bz2.sig gnupg-2.3.5.tar.bz2
This checks whether the signature file matches the source file.
You should see a message indicating that the signature is good and
made by one or more of the release signing keys. Make sure that
this is a valid key, either by matching the shown fingerprint
against a trustworthy list of valid release signing keys or by
checking that the key has been signed by trustworthy other keys.
See the end of this mail for information on the signing keys.
* If you are not able to use an existing version of GnuPG, you have
to verify the SHA-1 checksum. On Unix systems the command to do
this is either "sha1sum" or "shasum". Assuming you downloaded the
file gnupg-2.3.5.tar.bz2, you run the command like this:
and check that the output matches the next line:
This version of GnuPG has support for 26 languages with Chinese
(traditional and simplified), Czech, French, German, Italian,
Japanese, Norwegian, Polish, Russian, and Ukrainian being almost
Documentation and Support
The file gnupg.info has the complete reference manual of the system.
Separate man pages are included as well but they miss some of the
details available only in the manual. The manual is also available
or can be downloaded as PDF at
You may also want to search the GnuPG mailing list archives or ask on
the gnupg-users mailing list for advise on how to solve problems. Most
of the new features are around for several years and thus enough public
experience is available. https://wiki.gnupg.org has user contributed
information around GnuPG and relate software.
In case of build problems specific to this release please first check
https://dev.gnupg.org/T5743 for updated information.
Please consult the archive of the gnupg-users mailing list before
reporting a bug: https://gnupg.org/documentation/mailing-lists.html.
We suggest to send bug reports for a new release to this list in favor
of filing a bug at https://bugs.gnupg.org. If you need commercial
support go to https://gnupg.com or https://gnupg.org/service.html.
If you are a developer and you need a certain feature for your project,
please do not hesitate to bring it to the gnupg-devel mailing list for
Since 2001 maintenance and development of GnuPG is done by g10 Code GmbH
and has mostly been financed by donations. Three full-time employed
developers as well as two contractors exclusively work on GnuPG and
closely related software like Libgcrypt, GPGME and Gpg4win.
Fortunately, and this is still not common with free software, we have
now established a way of financing the development while keeping all our
software free and freely available for everyone. Our model is similar
to the way RedHat manages RHEL and Fedora: Except for the actual binary
of the MSI installer for Windows and client specific configuration
files, all the software is available under the GNU GPL and other Open
Source licenses. Thus customers may even build and distribute their own
version of the software as long as they do not use our trademark
We like to thank all the nice people who are helping the GnuPG project,
be it testing, coding, translating, suggesting, auditing, administering
the servers, spreading the word, answering questions on the mailing
lists, or helping with donations.
*Thank you all*
Your GnuPG hackers
This is an announcement only mailing list. Please send replies only to
the gnupg-users at gnupg.org mailing list.
List of Release Signing Keys:
To guarantee that a downloaded GnuPG version has not been tampered by
malicious entities we provide signature files for all tarballs and
binary versions. The keys are also signed by the long term keys of
their respective owners. Current releases are signed by one or more
of these four keys:
rsa3072 2017-03-17 [expires: 2027-03-15]
5B80 C575 4298 F0CB 55D8 ED6A BCEF 7E29 4B09 2E28
Andre Heinecke (Release Signing Key)
ed25519 2020-08-24 [expires: 2030-06-30]
6DAA 6E64 A76D 2840 571B 4902 5288 97B8 2640 3ADA
Werner Koch (dist signing 2020)
ed25519 2021-05-19 [expires: 2027-04-04]
AC8E 115B F73E 2D8D 47FA 9908 E98E 9B2D 19C6 C8BD
Niibe Yutaka (GnuPG Release Key)
brainpoolP256r1 2021-10-15 [expires: 2029-12-31]
02F3 8DFF 731F F97C B039 A1DA 549E 695E 905B A208
GnuPG.com (Release Signing Key 2021)
The keys are available at https://gnupg.org/signature_key.html and
in any recently released GnuPG tarball in the file g10/distsigkey.gpg .
Note that this mail has been signed by a different key.
The pioneers of a warless world are the youth that
refuse military service. - A. Einstein
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