Updates to Garry's Mod have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:
Garry's Mod
Added loading progress to startup
Increased max players to 128 (for GMod Tower team)
Fixed server crash when giving player items that weren't weapons
Whitelisted commands that were breaking compatibility
Fixed +toggle command crash exploitFixed toolgun crosshair jumping around