GtkRadiant has seen some major development in the last few months, so TTimo has put out a new test build for those of you who are interested in testing it. Most of the current updates are in the back end, upgrading to VS 2015 and I think a bunch of stuff for Gimp Toolkit 3. Beta testing helps us gauge stability and get some feedback.
NOTE: This is a BETA so there may be unexpected issues. That said, it seems to be pretty reliable. Just make sure you do backups of what you're working on.
Windows link here (no Mac/Linux binaries at this time):
https://s3.amazonaws.com/gtkradiant/Gtk ... 151224.zip
You will also need the Visual C++ Redistributable for Visual Studio 2015. You'll need both vc_redist.x64.exe and vc_redist.x86.exe if running a 64-bit OS:
https://www.microsoft.com/en-us/downloa ... x?id=48145
I recommend leaving feedback here. Note, the project team is mainly interested in improving stability and improving existing features. It is unlikely that they will be introducing significant major features at this time, so if you are looking at Doom 5 support or real-time editor lighting or something, that is unlikely to happen. But if you have ideas on how to streamline things, we would love to hear from you.
Going to try it out soon then 
