Was there an update revently?

First off, the menu splash screen has changed from waht it always was in Gmod 10 and suddenly…all my weapons have vanished. If I open a singleplayer session in say gm_flatgrass all I get is the toolgun, camera and the physgun.
That’s no fun. What happened?
I have no addons installed, just stuff that downloaded when I was on other servers.