Noticed the Official 1.4 Patch Notes thread is missing the weapon updates Cry-Adam said were coming out with 1.4, so here are the notes assuming those changes also went live:

Patch 1.4:

? Vote-kicking feature added.
? Added a reserved slot system for server admins.
? Further improvements to anti-cheat measures.
? Objectives are returned if they end up in forbidden areas.
? Fix for Nanosuit Modules that could not be leveled in some circumstances.
? Fix for some instances of errors logging into multiplayer that would report "Could not connect to Gamespy".
? Fix for unlock tokens failing to be awarded if a player quit a game in which they leveled up before the end of the round.
? Fix for inconsistencies with weapon zooming.
? Fix for outdated stats being saved when a client leaves mid-game.
? Fixes to the Nanosuit Reboot option available at level 50.
? Fixed several weapon exploits.
? Fixed a rare issue where auto-aim, stealth kill and grab would not work on an AI.
? Reduced memory footprint of sound.
? Optimized full screen effects on some graphics cards.
? Optimized SSAO on some graphics cards.

Weapons:
? AY69: Increased recoil
? DSG1: Reduced fire rate
? Feline: Increased recoil
? Hammer: Reduced recoil
? Jackal: Reduced full auto spread, Increased single shot spread
? Jaw: Reduced damage, Reduced rocket speed
? Kvolt: Increased damage
? LTag: Increased fire rate, Increased damage
? Mk60: Reduced recoil
? Scar: Increased recoil
? Scarab: Increased recoil, Increased spread
? Gauss attachment: Increased clip size, Removed damage falloff
? Light shotgun attachment: Increased clip size, Reduced damage
? Frag grenade: Increased damage
? HMG: Removed crouch accuracy bonus

Modules:
? Air Stomp: Reduced recovery time
? Nano Recharge: Reduced recharge rate
? Detonation Delay: Reduced delay
? Energy Transfer: Reduced tier 3 transfer amount
? Point Fire Enhance: Reduced spread further
? Weapon Pro: Increased reload and ironsight speeds further
? Mobility Enhance: Increased energy costs

Other:
? Nanosuit 2.0: Reduced armour bonus
? Headshot damage modifier reduced




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Update 1: Patch should now be available and automatically download. Please check that your version has been updated to the latest "1.4.0.0" version via the Crysis2.exe details.

Not all servers are updated to the latest version so there will be a short period of time where only a limited amount of servers are available but keep trying and more servers/slots will become available soon!

Update 2: Steam patch was rolled out but a glitch occured with the rest which is why the patch isn't yet available. Please bear with us while this rollout issue is resolved. Further information in the last post.

Update 3: Autodownloader is now picking up the patch so you should be able to download it. If the patch doesn't automatically download, please use Crysis2Launcher.exe in the Crysis2/Bin32 folder.

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Patch 1.4? What about 1.3?
- Yes, this patch is 1.4 which means there was no 1.3. Doesn't matter what the number is, what matters is the content.


Sources:
http://www.gamesas.com/forums/viewtopic.php?f=40&t=24683
http://www.gamesas.com/forums/viewtopic.php?f=41&t=24690
http://www.gamesas.com/forums/viewtopic.php?f=40&t=24683

Apparently "Further improvements to anti-cheat measures" means castrating the game even further.