Comment # 1 on bug 99994 from Ernst Sjöstrand

I downloaded it from here:
https://www.epicgames.com/unrealtournament/forums/showthread.php?12011-Unreal-Tournament-Pre-Alpha-Playable-Build

And followed instructions here:
https://www.gamingonlinux.com/articles/unreal-tournament-on-linux-checking-up-on-the-progress-by-epic-games.7241/

I'm running
4.15.0-3315666+++UT+Release-Next 510 0
which seems to be
"UPDATE: New build posted 1/26/2016 - 0.1.7.1"