I've been testing which of MSVS2013 and MinGW produced the best executable (regarding FPS in release mode). It is more or less the same. After launching 10 seconds the skirmish big test map, MSVS2013 seemed to be a little bit faster (but nearly the same).
The most notable difference was the executables size (for OD executable : 1.7 Mb for MSVS2013 and 2.9 Mb for MinGW). Moreover, I was able to build DirectX renderers with MSVS2013 so it seems better to build releases.
Now that I have built the release, I will share it. It is today's OD development branch + my PR about spells for summoning kobolds.
Note that this release has my untested PR (I was not building a release at first) and since it's my first release, some files may be missing as I've only tested in my dev computer.
For those interested (Danimal, I'm looking at you):
https://www.dropbox.com/s/nmphkwondup52 ... e.zip?dl=0