[Facelessone]

A new update for the PC and Mac versions of Portal 2 is now live on Steam, offering a number of bug fixes. 

 The patch, which will be applied automatically when you restart your Steam client, smooths over a few glitches and makes a couple of minor gameplay tweaks. 

 Here's the full list of changes: 
Fixed unrecoverable black screen in elevator save
Fixed infinite loop on Mac OSX server
Fixed Mac OSX font rendering and glyph corruption
Fixed GC memory leakVarious localization content improvements
Support for English subtitles in Turkish builds
Minor string/interface glitches
Fixes for multiple crashes
Improved detection and handling for various errors and/or crashes
Activated UI to enable joystick in-game

Meni su nestali saveovi nakon patcha tak da si propazite na to

edit 2:

! If you lost your saves after installing update, do the following:
 Go to the root folder of Portal 2;
 Default – C:\Program Files (x86)\Valve\Portal 2\
 Then go to portal2\SAVE;
 There should be 2 or more folders in there. Open them, until you find the one which has your saves in it, then copy the contents to all the other folders in the save folder.