A fairly minor one today, fixing a bug that could cause problems when unusual characters were used in save file names. Shouldn't do anything that almost anyone would notice, just letting you know why you see an update!
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 24396174 · public branch
Steam updated · First observed