Hopefully all the fixes you could ever want! here is a full changelog, including he highlights above.
General:
+QoL adjustments to admin room (useful for ent_fire)
+Display remaining uses on item use to holders
+Gravity Well should no longer slingshot zms
+All AFK teleport locations are indicated by a Vita Chamber
+Increased Insect Swarm damage ~3x
+Added team performance calculator. Gives a rating at round end, that determines the starting difficulty for next round
+Minor brightness increases in or near tunnels
+Corrected door open/shut sounds
+Map gets slightly easier with each successive loss
Stage 1:
+Visual fixes
+QoL improvements in Big Daddy room for cage
Stage 2:
+Adjusted last AFK teleport location.
Stage 3:
+Fixed a position where players could get stuck on displacements
Stage 4:
+Fixed issue with zm teleport not working
+Fixed very rare timing issue where players could trigger both endings.
Columbia:
+Performance optimisations
+Fixed sand texture appearing on some walls
+Improved lighthouse visuals
+Added Patriot animations
+Fixed an exploit that could cause a player to not add health to the Patriot while keeping line-of-sight
1999:
+Added extra button to Poseidon Plaza side door. It is no longer necessary to have someone go around to the other side (but its still much faster)
+Adjusted Poseidon Plaza teleport location to remove knockback loops
+Added a way out of the water in the Arcadia Bathysphere room
+1999 routes are now part of the main map. No more appearing & disappearing walls
+Fixed timing issue on Trophy Room door
+Fix a case when stage 4 instructions could appear in the elevator tower
+Fix Lag/Stuck on lighthouse collapse
+Songbird arena adjustments
+Songbird attack modifications