GnuPG 2.1.0 "modern" 发布了，这是一个开发版，包含诸多新特性。当前最新的稳定版还是 2.0。而 GnuPG 1.4 则适合老的和嵌入式设备。
下载地址：
ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-2.1.0.tar.bz2 (3039k)
ftp://ftp.gnupg.org/gcrypt/binary/gnupg-w32-2.1.0_20141105.exe (6225k)
GnuPG 2.1.0 改进内容包括：
- The file "secring.gpg" is not anymore used to store the secret
keys. Merging of secret keys is now supported.
- All support for PGP-2 keys has been removed for security reasons.
- The standard key generation interface is now much leaner. This
will help a new user to quickly generate a suitable key.
- Support for Elliptic Curve Cryptography (ECC) is now available.
- Commands to create and sign keys from the command line without any
extra prompts are now available.
- The Pinentry may now show the new passphrase entry and the
passphrase confirmation entry in one dialog.
- There is no more need to manually start the gpg-agent. It is now
started by any part of GnuPG as needed.
- Problems with importing keys with the same long key id have been
addressed.
- The Dirmngr is now part of GnuPG proper and also takes care of
accessing keyserver.
- Keyserver pools are now handled in a smarter way.
- A new format for locally storing the public keys is now used.
This considerable speeds up operations on large keyrings.
- Revocation certificates are now created by default.
- Card support has been updated, new readers and token types are
supported.
- The format of the key listing has been changed to better identify
the properties of a key.
- The gpg-agent may now be used on Windows as a Pageant replacement
for Putty in the same way it is used for years on Unix as
ssh-agent replacement.
- Creation of X.509 certificates has been improved. It is now also
possible to export them directly in PKCS#8 and PEM format for use
on TLS servers.
详细列表请看：https://gnupg.org/faq/whats-new-in-2.1.html
来自:开源中国社区
