The most important change in this release is that TLS version negotiation is no longer used unless it's explicitly turned on in the configuration files, thus reverting back to the 2.3.2 behaviour as interoperability issues were encountered in 2.3.3. Other notable changes include addition of SSL library version reporting, fixing of SOCKSv5 authentication logic and making serial env exporting consistent between OpenSSL and PolarSSL. This release also contains a number of other bug fixes and small enhancements.
Bump openvpn-acct-wtmpx to add its licence and to take into account the
new location of plugin directory
Significant changes since 2.2.x:
* Full IPv6 support
* SSL layer modularised, enabling easier implementation for other SSL
libraries
* PolarSSL support as a drop-in replacement for OpenSSL
* New plug-in API providing direct certificate access, improved logging API
and easier to extend in the future
* Added 'dev_type' environment variable to scripts and plug-ins - which
is set to 'TUN' or 'TAP'
* New feature: --management-external-key - to provide access to the
encryption keys via the management interface
* New feature: --x509-track option, more fine grained access to X.509
fields in scripts and plug-ins
* New feature: --client-nat support
* New feature: --mark which can mark encrypted packets from the tunnel,
suitable for more advanced routing and firewalling
* New feature: --management-query-proxy - manage proxy settings via the
management interface (supercedes --http-proxy-fallback)
* New feature: --stale-routes-check, which cleans up the internal
routing table
* New feature: --x509-username-field, where other X.509v3 fields can be
used for the authentication instead of Common Name
* Improved client-kill management interface command
* Improved UTF-8 support - and added --compat-names to provide backwards
compatibility with older scripts/plug-ins
* Improved auth-pam with COMMONNAME support, passing the certificate's
common name in the PAM conversation
* More options can now be used inside <connection> blocks
* Completely new build system, enabling easier cross-compilation and
Windows builds
* Much of the code has been better documented
* Many documentation updates
* Plenty of bug fixes and other code clean-ups