Server - Some potential sources for lag/rubberbanding have been eliminated
Server - The old reserved slots has been replaced by a kick-on-demand system like in BF2
Server - Log file for server admins: all remote admin interface commands/events are logged
Server - Log file for server admins: major server events + all chat messages are logged
Server - Idle kick is controllable
Server - Profanity filter can be disabled
Server - Teamkill-kick system is controllable
Server - Ticket counts and bleed rate are controllable per-level
Server - Infantry only mode available per-level
Server - Initial spawn delay and respawn delay are adjustable
Server - Server description can be up to 400 characters, and use "|" for line breaks
Server - Banlist can contain up to 10.000 entries
Server - reduced latency in packet handling

Admin Interface - fixed the player.onKill spam that occasionally happened
Admin Interface - ensured that player.onJoin events always report the player name
Admin Interface - events triggered when people spawn
Admin Interface - much more info on kills
Admin Interface - detailed stats are reported at end-of-round

Gameplay - Various minor level bugfixes
Gameplay - Helicopter handling has been tweaked
Gameplay - Weapon tweaks have been implemented based on PC public feedback
Gameplay - Fixed technical hang when a crate was armed outside of the combat area
Gameplay - "Victory is near" message was shown for the wrong team on Valparaíso, this has been fixed
Gameplay - Countermeasures can be fired when driving a helicopter
Gameplay - The brightness of the pilot view in the Russian helicopter has been reduced
Gameplay - Advanced Spotting scope works better
Gameplay - Knifing people in the back works again (we backed out the change that we had done for Server R11)

Server Browser - Servers are sorted into 3 categories: Normal, Modified, Hardcore depending on their settings
Server Browser – Added support for retrieving update progress
Server Browser - Now refreshes information
Server Browser - Join queue system when attempting to join a full server
Server Browser - all settings are automatically saved between sessions
Server Browser - Pings are sent via an alternate mechanism, which should work for non-Administrator users as well

Client - Fixed DX9 issue, which likely caused graphics glitches and perhaps crashes
Client - Fixed some crashes
Client - Toggle/hold crouch is user controllable
Client - Toggle/hold zoom is user controllable
Client - Vsync bugfixed for DX10/DX11
Client - Rewritten how settings are written to disk; this should reduce/eliminate the spawn lag
Client - Fixed bug where a player could join a server before the stats has been downloaded causing faulty stats in "EOR- unlock progression"-screen
Client - New chat system allows chatting when dead (but not during end of round) and keeps a 100 lines log
Client - Improved Play Now functionality
Client - Removed K/D ratio and Skill Level filters in the leaderboards
Client - Any points you get while being dead will be added to your score
Client - Reduced negative mouse acceleration
Client - More informative disconnection/kick reasons