[Announce] GnuPG 2.1.10 released
wk at gnupg.org
Fri Dec 4 14:06:49 CET 2015
The GnuPG team is pleased to announce the availability of a new release
of GnuPG modern: Version 2.1.10. The main features of this release are
support for TOFU (Trust-On-First-Use) and anonymous key retrieval via
The GNU Privacy Guard (GnuPG) is a complete and free implementation
of the OpenPGP standard which is commonly abbreviated as PGP.
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. A wealth of frontend applications
and libraries making use of GnuPG are available. Since version 2 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 branches of GnuPG are actively maintained:
- GnuPG "modern" (2.1) is the latest development with a lot of new
features. This announcement is about this branch.
- GnuPG "stable" (2.0) is the current stable version for general use.
This is what most users are currently using.
- GnuPG "classic" (1.4) is the old standalone version which is most
suitable for older or embedded platforms.
You may not install "modern" (2.1) and "stable" (2.0) at the same
time. However, it is possible to install "classic" (1.4) along with
any of the other versions.
Noteworthy changes in version 2.1.10
* gpg: New trust models "tofu" and "tofu+pgp".
* gpg: New command --tofu-policy. New options --tofu-default-policy
* 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
* 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
* gpg: Check for ambigious 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
* 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
* 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.
A detailed description of the changes found in the 2.1 branch can be
found at <https://gnupg.org/faq/whats-new-in-2.1.html>.
Please be aware that there are still known bugs which we are working on.
Check https://bugs.gnupg.org, https://wiki.gnupg.org, and the mailing
list archives for known problems and workarounds.
Getting the Software
Please follow the instructions found at <https://gnupg.org/download/> or
GnuPG 2.1.10 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/mirrors.html>. Note that GnuPG is not available
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
basic 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. This Windows installer is missing
translations, it has no TOFU support and no HKPS support. However, it
fully supports Tor and the Tor browser.
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-2.1.10.tar.bz2 you would use this command:
gpg --verify gnupg-2.1.10.tar.bz2.sig gnupg-2.1.10.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 below 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-2.1.10.tar.bz2, you run the command like this:
and check that the output matches the next line:
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:
2048R/4F25E3B6 2011-01-12 [expires: 2019-12-31]
Key fingerprint = D869 2123 C406 5DEA 5E0F 3AB5 249B 39D2 4F25 E3B6
Werner Koch (dist sig)
rsa2048/E0856959 2014-10-29 [expires: 2019-12-31]
Key fingerprint = 46CC 7308 65BB 5C78 EBAB ADCF 0437 6F3E E085 6959
David Shaw (GnuPG Release Signing Key) <dshaw 'at' jabberwocky.com>
rsa2048/33BD3F06 2014-10-29 [expires: 2016-10-28]
Key fingerprint = 031E C253 6E58 0D8E A286 A9F2 2071 B08A 33BD 3F06
NIIBE Yutaka (GnuPG Release Key) <gniibe 'at' fsij.org>
rsa2048/7EFD60D9 2014-10-19 [expires: 2020-12-31]
Key fingerprint = D238 EA65 D64C 67ED 4C30 73F2 8A86 1B1C 7EFD 60D9
Werner Koch (Release Signing Key)
You may retrieve these keys from a keyserver using this command
gpg --keyserver hkp://keys.gnupg.net --recv-keys \
249B39D24F25E3B6 04376F3EE0856959 \
The keys are also 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.
This version of GnuPG has support for 26 languages with Chinese,
Czech, French, German, Japanese, Russian, and Ukrainian being almost
completely translated (2111 different strings).
If you used GnuPG in the past you should read the description of
changes and new features at doc/whats-new-in-2.1.txt or online at
The file gnupg.info has the complete user manual of the system.
Separate man pages are included as well but they have not all the
details available as are the manual. It is also possible to read the
complete manual online in HTML format at
or in Portable Document Format at
The chapters on gpg-agent, gpg and gpgsm include information on how
to set up the whole thing. You may also want search the GnuPG mailing
list archives or ask on the gnupg-users mailing lists for advise on
how to solve problems. Many of the new features are around for
several years and thus enough public knowledge is already available.
You may also want to follow postings at <https://gnupg.org/blob/>.
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>. For commercial support
requests we keep a list of known service companies at:
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
Maintenance and development of GnuPG is mostly financed by donations.
As of today we employ 3 full-time developers, one part-timer, and one
contractor. They all work on GnuPG and closely related software like
Enigmail. Please see
on how you can help.
We have to thank all the people who helped with this release, be it
testing, coding, translating, suggesting, auditing, administering the
servers, spreading the word, answering questions on the mailing
lists, and donating money.
For the GnuPG hackers,
This is an announcement only mailing list. Please send replies only to
the gnupg-users'at'gnupg.org mailing list.
Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz.
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