GTR is now 1.3 compatible.

Now you are able to sort by GTR games in the GameBrowser: Sort by gametype, and all games that have a "G " prefix (like "G DM") are GTR servers.
This is more a hack, but the only possible solution without help from id software.

We had an rc1 version out only a few hours after 1.3 release (there may still be some servers with that version).
Today we finished it, and without more delay, here is it:

Downloads:

Mirror 1
Mirror 2
Mirror 3

Remember you need the CCQ4 pak01 for it:
downloads