You can have it yourself. just replace renx Win64 folder with UDK july 2013 Win64 folder. DOnt get any difference ingame. But in my case, game was more stable and smooth
Where is 64bit binaries from july2013 UDK bundle? Why them is not included?
There's no difference between content made in 64 vs 32 bit though.
Tested with 64bit binaries from july2013 UDK - everything seems fine
Download this file and extract it to renX binaries folder with overwritting
- link deleted -