New auto patch update for Modern warfare 2 available via Steam. Among the bug fixes there's also been some cheats and hacks that have been dealt with in this latest update.
Some of the other changes include normalising the sprint speed for the Care Package, Emergency Airdrop, and Sentry Gun marker grenades. They have also improved the placement of sentry guns and also fixed some player collision issues. The patch has also put in some tweaks to improve the mouse latency in the game.
This all seems fairly minor in terms of updates though.