Valve has released a new update for the games of The Orange Box sans Team Fortress 2, now available for download via Steam for both PC and Mac.

The patch improves performance when using anti-aliasing with ATI video cards across Half Life 2, HL2: Episode One, Episode Two and Portal, as well as a handful of fixes to issues related to the recent release on Mac.

The file can be automatically downloaded via Steam, if you own the game and haven’t received the update just restart the client. From the change log:

Half-Life 2

Fixed crash due to long hud hint messages, seen when playing in French

Fixed Lambda logo at end of credits being cut off (Mac)

Added pre-caching of GLSL shaders on game launch to prevent hitching in game (Mac)

Performance improvements when using anti-aliasing on ATI GPU’s

Half-Life 2: Episode One

Fixed localized content not loading properly resulting in English audio

Added pre-caching of GLSL shaders on game launch to prevent hitching in game (Mac)

Performance improvements when using anti-aliasing on ATI GPU’s

Half-Life 2: Episode Two

Improved frame rate on opening map

Fixed localized content not loading properly resulting in English audio

Added pre-caching of GLSL shaders on game launch to prevent hitching in game (Mac)

Performance improvements when using anti-aliasing on ATI GPU’s

Portal

Added pre-caching of GLSL shaders on game launch to prevent hitching in game (Mac)

Performance improvements when using anti-aliasing on ATI GPU’s