The portal texture is temporarily disabled (it continues to work).
Temporarily disabled screen dimming when the hero is looking at a monster.
Some calculations are running in parallel.
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The average gain is 20-30 fps.
Update 01-05-2020
Source: Steam Community (opens in a new tab)
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 4971296 · public branch
Steam updated · First observed