Hello,
there was a Bug that let players duplicate cubes after switching between two different areas of the game (30 -> 31 -> 30 -> 31, for example)
Source: http://steamcommunity.com/app/603800/discussions/2/1368380934264221843/
This is now fixed.
I did not fix the other "glitches/bugs" that he used, because that would invalidate this and other speedruns (besides that, the glitches are harmless anyway, and do not affect people that play the game like it is intended to be played)
Then there was a change to the color-correction and Auto-Exposure since the last patch. (Because the engine decided to overwrite some settings...)
The game now (again) looks like it does on the screenshots from the store-page.
That's it, for now.
PS: There is still one rare bug that can happen in Room 32, if you have any information that could be useful to track it down, please post it here:
http://steamcommunity.com/app/603800/discussions/0/1368380934263368349/
Thank you.