Last night a new patch for Fortress Forever 2.1 was released. Nothing major seems to have been released. Just a few hot fixes for bugs.
Quoting from the official forums:
The regular server packages are being made right now and will be released within a couple of hours (or sooner if possible), but any of you linux server admins can definitely get a head start if you want.
The differences between the *_WindowsServer.zip files, and the generic *_Server.zip and .tar.gz files will be 3 files:
We’ve updated all our system game server files, so all you need do to issue the update is reboot your game server, and the update gaming server files should be updated automatically.
Should you have any problems, please contact support.