An update has been released for GMOD via steam, and will be downloaded for GMOD owners when the steam client is restarted.

Garry's Mod

• Added 'Player List' option to menu screen
• View is no longer limited on Prisoner Pod
• Added chair vehicles
• Fixed 'laggy' motion blur on listen server (Thanks HLCoders)
• Fixed various playermodel issues (Nova)
• Fixed HL2 maps not being mounted
• Fixed content choices not being saved on some systems
• Fixed always adding the "increased_maxplayers" custom server tag
• Fixed rare crash on map change