I'm pleased to announce that SourceMod 1.6.2 and Metamod:Source 1.10.3 have been released.
They both primarily contain updates to restore functionality after some game updates for Team Fortress 2 and Counter-Strike: Global Offensive.
Additionally, some compatibility shims have been put in place for games that use Steam authentication but use different formatting for their auth string representation. This includes only TF2 for now, but will include more games in the future so that you do not need to update any files and can continue to use the old format. More details are in the Release Notes.
You can get SourceMod 1.6.2 from the downloads
page. Some support links: