Updates to Counter-Strike: Source have been released and the game is now available on the Mac.  To celebrate this update, Counter-Strike: Source will be on sale for 66% off until Friday.  For more information, 
click here. 
The updates will be applied automatically when your Steam client is restarted. The major changes include:
General- 144 achievements added 
 
- New lifetime player stats and summary screens 
 
- New match player stats and summary screens 
 
- New end of round display with MVP and interesting fact about a player 
 
- Updated scoreboard with new icons, visual style, MVP stars, and avatar pictures 
 
- New cinematic death camera 
 
- New domination and revenge system 
 
- Added avatar icons to voice chat, scoreboard, and end of round display 
 
- Incorporated many source engine updates 
 
- Disallowed the use of arbitrary command strings for the message of the day screen.  Now only a specific list of commands is allowed.
 
- Addressed issue in which AWPs and Scouts sometimes did not make the zooming sound.
 
- cvar mat_showlowresimage is now a cheat command.
 
- Many development console commands which would crash the server removed.
 
- Updated source engine addresses many issues:
 
- Better flashlight effect
 
- Better HDR behavior
 
- Multicore rendering support
 
- Added sv_disablefreezecam cvar to turn off the freezecam on a server.
 
- Added sv_nonemesis cvar to turn off domination/revenge on a server.
 
- Added sv_nomvp cvar to turn off MVP stars on a server.
 
- Added sv_nostats cvar to turn off stats on a server.
 
- Removed -tickrate command line option and defaulted tick rate to 66 rather than 33.  This addressed a number of issues, including:
 - Tick rate affecting how fast doors open / close
 
- Tick rate causing players hitting the ground to stutter
 
- Tick rate affecting the firing mechanisms of certain guns
 
 
UI- Added the following cvars to allow players to customize their scoreboards.
 
- cl_scoreboard_ct_color_red
 
- cl_scoreboard_ct_color_green
 
- cl_scoreboard_ct_color_blue
 
- cl_scoreboard_t_color_red
 
- cl_scoreboard_t_color_green
 
- cl_scoreboard_t_color_blue
 
- cl_scoreboard_dead_color_red
 
- cl_scoreboard_dead_color_green
 
- cl_scoreboard_dead_color_blue
 
- Changed the screen that appears when the message of the day fails to load to display proper error text.
 
- Made the CT silhouette for the auto-select option in the Choose a Class screen smaller and corrected its aspect ratio.
 Addressed a problem that occasionally caused characters to be colored incorrectly on the Change a Class screen.
 
Gameplay- Made ladders easier to climb.  Added cvars sv_ladder_dampen and sv_ladder_angle.
 
- Fixed issue that awarded three points when the bomb explodes after the round ends by elimination criteria instead.
 
- Fixed issue in which you werent given credit for grenade damage if you fired a weapon at someone then hit them with a grenade (in that order).  Also fixed problem in which grenading a player and then killing them with another weapon showed as *** in 1 on console.
 
- Theres now a priority order for displaying win conditions when multiple win conditions are set.
 
- If timelimit exists and is not 0, then show timelimit.
 
- If timelimit does not exist, show maxrounds if not 0.
 
- If both timelimit and maxrounds are 0, show winlimit.
 
- If timelimit, maxrounds, and winlimit are all 0, show nothing.
 
 Added a cvar to ignore win conditions:  mp_ignore_round_win_conditions.
 
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