The revision of Hotfix #34 is 852257
Changelog
Fixed a crash which occurred when placing and removing large numbers of Water Barriers in a small area of water.
We are aware of a number of non-blocking issues being reported post patch 12 (because I jinxed it when I said "last patch of the year" earlier today, that's on me), so we ask you to please report these issues so we can look into them and hopefully fix them soon!