We've finished adding patch support for CodePlex Client, and have therefore made our first official release (June 2007).
You can download it here. In addition to supporting patch, this release is the first to be offered as stand-alone single executables (cpc.exe/tfc.exe) without any DLL dependencies. If you are using an older version of CodePlex Client, you should remove all the executables and DLLs before updating to the June 2007 Release.
The CodePlex Client team is going to be on a bit of a hiatus. If there are show-stopper bugs we'll get them fixed ASAP, but there will be no new feature development for a while. We are hoping that now that patch is ready, we'll be able to take community contributions. If you'd like to contribute, please contact me.