Treyarch has finally released the patch. Here are few details I found.
1/25/11 (Patch 1.06) New Features: • New contracts added to the rotation. • Added optional pre-match timer for LAN / System-Link games. Issues Addressed: • Fixed freeze associated with larger games. • Improved reliability of players connections to one another. • Improved ability to bring parties to the game lobby. Late party joiners would try to connect to previous lobby host and be denied if new joiners trigger a lobby host migration. • Addressed an issue where the Host encounters and infinite spinning loading circle after a Host migration. • Fixed a timing specific, long/infinite loading screen when joining games (sometimes giving you “Error -Read error (0x80010713) on file <map name>"). • Fixed a timing-specific freeze when host powered down during host migration. • Cleaned up the map search filter in the Community section (deleted unused entries). • Fixed Combat Training’s "USE FRIENDS" option for bots names. • Fixed issue with split-screen guest profile names being blank, resulting in matches never launching. • Instead of showing the generic “Player” for offline profiles in LAN, we now display the PS3 profile name. • Fixed Friends list appearing after viewing a Friends Playercard from the Leaderboards. • Fixed filter so players can now view Friends on Zombies leadboards. • Fix timing specific issue where the game can be put into slow motion. • Addressed "disconnected path" error when using the doors in Radiation after a host migration. • Fixed stability issues navigating lobbies after client on Split Screen Zombies quits out of a game. • Addressed issue/exploit when removing Counter Spy Plane effects with the Jammer. • Fixed a freeze when quickly loading maps one after another in private match. • Fixed issue where players get primary weapons in Second Chance. • Fixed “NEW” stamp not disappearing for Custom Slot 9 when highlighting the slot. • Removed water vision effect when respawning after dying in the acid pool in Radiation. • Several contract fixes. Gameplay Tuning: • Second Chance –players that put an enemy into Second Chance are now credited for a full kill once that enemy dies. If another player kills the enemy while the enemy is in Second Chance, they will get assist credit. • Adjustments to the PSG1 with attachments. • AK74U adjustments. • RCXD adjustments. • Silenced sniper rifle adjustments. • Removed hit markers when shooting friendly equipment.