BF3Blog has details on a new server patch now available for Battlefield 3 addressing some issues with DICE's military shooter sequel, offering fixes for AA missiles and the "MAV elevator" glitch among other things. Clients need not do anything, as this is a server-only update. Here are the change notes:

• Fixed AA missiles not doing damage to vehicles moving at very high speeds
• Fixed TV Missile doing much more damage than it should (it is no longer a 1-hit kill)
• Tweaked tank armor strength
• MAV elevatoring fix, round 2; proning on the MAV will now disable it
• RCON admin.say command can send to individual players
• A few invalid map+gamemode combinations in maplist.txt could crash the server on startup; these combinations are now rejected instead
• RCON vars.serverDescription was not returning anything in R20 if the string was not set; this has been changed to return “” instead
• RCON player.onChat now reports the target player subset