Call Of Duty : Black Ops - Multiplayer Fixes Progress

Game - Call Of Duty : Black Ops
Publisher - Activision
Developer - Treyarch
Engine - IW Engine
Platform - PC, 360, PS3, Wii, NDS
Released Date - 09 November 2010

From Josh Olin, Treyarch's Community Manager :

We are listening to you and we’ve been busy working on updates based on feedback from the community. We have already deployed a number of updates, and there will be many more to come. Stay tuned right here for all the latest info.

Live Fix 10 November 2010

• GameServers.com has bumped sv_maxrate to 25000 across all servers to reduce lag
• GameServers.com continues to improve official server distribution in various worldwide regions.

Live Fix 11 November 2010

• Friends fix for join in progress and Friends tab in server browser
• Performance improvement for dual and quad core
• Improved connectivity with Black Ops Rcon tool

In-Progress

• GPU hitching on certain graphics cards
• Incomplete server browser results
• Improvements to Quickmatch joins (results with better ping and reduced lag)
• Zombies "The game session is no longer available" error

Source
http://www.callofduty.com/