Detailed Changelog from our rc9 to rc11-1 in Debian:

[regressionfix] Fixed --lladdr bug introduced in 2.1-rc9 where input validation 
code was incorrectly expecting the lladdr parameter to be an IP address when it 
is actually a MAC address (HoverHell).
[bugfix] Fixed a bug that can cause SSL/TLS negotiations in UDP mode to fail if 
UDP packets are dropped.
[feature] Added "--server-bridge" (without parameters) to enable DHCP proxy 
mode:  Configure server mode for ethernet bridging using a DHCP-proxy, where 
clients talk to the OpenVPN server-side DHCP server to receive their IP address 
allocation and DNS server addresses.
[feature] Added "--route-gateway dhcp", to enable the extraction of the gateway 
address from a DHCP negotiation with the OpenVPN server-side LAN.
[feature] Warn when ethernet bridging that the IP address of the bridge adapter 
is probably not the same address that the LAN adapter was set to previously.
[feature] When running as a server, warn if the LAN network address is the 
all-popular 192.168.[0|1].x, since this condition commonly leads to subnet 
conflicts down the road.
[bugfix] Primarily on the client, check for subnet conflicts between the local 
LAN and the VPN subnet.
[buildfix] Minor fix to cryptoapi.c to not compile itself unless USE_CRYPTO and 
USE_SSL flags are enabled (Alon Bar-Lev).
[buildfix] Updated openvpn/t_cltsrv.sh (used by "make check") to conform to new 
--script-security rules.  Also adds retrying if the addresses are in use 
(Matthias Andree).
[buildfix] Fixed build issue with ./configure --disable-socks --disable-http.
[buildfix] Fixed separate compile errors in options.c and ntlm.c that occur on 
strict C compilers (such as old versions of gcc) that require that C variable 
declarations occur at the start of a {} block, not in the middle.
[bugfix] Workaround bug in OpenSSL 0.9.6b ASN1_STRING_to_UTF8, which the new 
implementation of extract_x509_field_ssl depends on.
[bugfix] LZO compression buffer overflow errors will now invalidate the packet 
rather than trigger a fatal assertion.
[buildfix] Fixed minor compile issue in ntlm.c (mid-block declaration).
[regressionfix] Added --allow-pull-fqdn option which allows client to pull DNS 
names from server (rather than only IP address) for --ifconfig, --route, and 
--route-gateway.  OpenVPN versions 2.1_rc7 and earlier allowed DNS names for 
these options to be pulled and translated to IP addresses by default. Now 
--allow-pull-fqdn will be explicitly required on the client to enable 
DNS-name-to-IP-address translation of pulled options.
[regressionfix] 2.1_rc8 and earlier did implicit shell expansion on script 
arguments since all scripts were called by system(). The security hardening 
changes made to 2.1_rc9 no longer use system(), but rather use the safer execve 
or CreateProcess system calls.  The security hardening also introduced a 
backward incompatibility with 2.1_rc8 and earlier in that script parameters 
were no longer shell-expanded
[rfc-conformancefix] Modified ip_or_dns_addr_safe, which validates pulled DNS 
names to more closely conform to RFC 3696
[regressionfix] Fixed bug in intra-session TLS key rollover that was introduced 
with deferred authentication features in 2.1_rc8.

We would also merge the fix for "exit with 0 status when trying to start
an already running VPN" in our improved initscript.

-- 
script failed: could not execute external program 
https://bugs.launchpad.net/bugs/277447
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