Infinity Ward and Beenox have revealed the release notes/changelog for the first patches that came out for Call of Duty: Modern Warfare 2.

The teams have addressed a number of crashes affecting players across all platforms including the bug that caused certain players partied-up in game to crash when matchmaking.

Moreover, the teams have fixed a number of framerate drop issues. Additionally, they have packed overall performance improvements, as well as fixes for stuttering and lag issues.

It’s also worth noting that Beenox has updated the PC benchmark map with a more accurate reading of the FPS display. NVIDIA has also released a hotfix driver which addressed some critical issues on its GPUs.

Below you can find the changelog/release notes for these first updates. You can also find here our PC Performance Analysis.

Call of Duty: Modern Warfare 2 Week One Patch Release Notes

General Updates

• We’ve addressed a number of crashes affecting players across all platforms including the bug that caused certain players partied-up in game to crash when matchmaking. Last night’s update should provide additional stability in terms of crashing. We will continue to monitor live issue reports and provide resolutions as soon as we are able.

• We have made general game improvements including:
  • Fix for various camos not unlocking during progression.
  • Fixed framerate drop issues.
  • Addressed known freezing issues.
  • Overall performance improvements.
  • Added fixes for stuttering and lag issues.

PC

• A recent NVIDIA hotfix addressed some critical issues. Please make sure you are running the game on drivers 526.61.
• The PC benchmark map has been updated with a more accurate reading of the FPS display.
• Be sure to follow our friends at Beenox for additional updates for MW2 on PC.

Weapons

• We are actively collecting weapon performance/usage data and will provide detailed updates on weapon-balancing with the launch of Season 01.
• Last week we disabled the attachment tuning feature due to an issue affecting players with 4 or more tuned attachments equipped at once. We re-enabled attachment tuning in last night’s update so players should not encounter further issues equipping attachments on a weapon.

Multiplayer

• Enemy or live ping will remain disabled in multiplayer until a fix is implemented with the launch of Season 01. This is due to a bug where ping remained on some players after death. KBM players are currently still able to danger ping.
• The player icon on the minimap will no longer disappear after a player is revived in certain modes.

Maps/Playlists

• We have added Breenbergh Hotel into Third Person Moshpit
• There are no significant map changes, but we have patched various exploits and geometry bugs in the days since launch. We’ll continue to address small fixes through daily updates.

UI/UX

• We continue to refine our UI and will have more details in the Season 01 launch notes.