http://bashandslash.com/index.php?option=com_content&task=view&id=1215&Itemid=131
Quote:
Written by jockyitch
Thursday, 20 January 2011
A good sized update, the v1.05 patch for Black Ops weighs in at approximately 63 Mb and according to Steam has the following effects:


Call of Duty: Black Ops

MP Audio stuttering on certain systems.
Playercards sometimes not showing properly.
Added three Private Match Server Settings: Team Change, Team-Up Period, and Keep Balanced Teams.
Added Alternate Color Scheme for accessibility: Settings / Multiplayer / Player Name Indicator.
Changed Team-Up Period countdown interval to 10 seconds.
Combat Training sessions are no longer counted in Server Browser Unranked tab.
Friends on your team will now show as blue on your minimap.
Prevention of various exploits.
Objective markers localized for all languages.
Various stability improvements

Call of Duty: Black Ops Rcon Tool

Recognize new "invalid password" server response


Note that JD_2020 had some additional notes regarding in-progress fixes to the above list:

Hey PC gamers:

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.

IN PROGRESS
(Last Updated 1/20/11)

SP Audio stuttering on certain systems.
Addition of new contracts.
Addition of the “Dolly Cam” editing mode in Theater.
If a player cancels an invite to a Wager Match, then attempts to join another server, they will join the server from the declined invite.
Issue where the incorrect perks would appear when spectating another player under certain conditions.
Addition of round start explosive delay to China Lake grenade launcher to give it the same “spawn toob” protection as other explosives.
Ensure reticle purchases are reset on prestige in all circumstances.
Contracts should reset on prestige.
Prevention of Valkyrie rocket exploding upon release under rare conditions.
Prevention of Gunship and Chopper Gunner failing to give player full control under rare conditions.
Prevention of an issue where a player will get teleported outside the map boundaries under very specific conditions.
Limit the ability to re-roll supply drops using Hardline Pro to Care Packages only, no other killstreak drops.
Increased headshot multipliers for sniper rifles. Sniper rifles with suppressors equipped will now always be ensured one-shot kill headshots.
Added a render delay to the red diamond player indicators that appear when controlling the Gunship, Valkyrie Rocket and Chopper Gunner. When a player first spawns, this will not appear for a period of time.
Additional minor reductions in knife lunge.