Releases on May 15th, 2015 and before

github
showdownjs/showdown on GitHub 1.0.0-alpha.2
github
edx/edx-platform on GitHub hotfix-2015-05-15
github
FarGroup/FarManager on GitHub builds/3.0.4379
sourceforge
avidemux/avidemux on SourceForge 2.6.9/avidemux_2.6.9.tar.gz 2.6.9/Avidemux_2.6.9_64bits_Qt4.dmg
github
wine-mirror/wine on GitHub wine-1.7.43
sourceforge
git-osx-installer on SourceForge git-2.3.7-intel-universal-mavericks.dmg
github
dotnet/efcore on GitHub 7.0.0-beta4
github
FarGroup/FarManager on GitHub builds/3.0.4378
Maybe you can find something interesting in this list