An update has been released! This update fixes a few exploits, regressions introduced by previous update and some specific performance issues. And thanks to everyone who helped testing the update and reported bugs/problems. As usual, servers will need to be restarted. The update will be automatically downloaded when you restart your game. You can find full changelist [url=http://www.garrysmod.com/2016/01/19/january-2016-update//]here[/url]. Don't panic if when you join you will get "Server is running an older version of the game" - let the server update to the latest version of the game first. Just wait a few hours at most.