Update Build 8681:
Technical fixes
Fixed a crash related to memory usage
Fixed a crash related to a player leaving the game in multiplayer in a specific location

Gameplay fixes and changes
Multiple fixes to Classic mode puzzles in multiplayer
Fixed online sync for objects in airflows
Fixed an issue related to Reconnecting and increased the timeout period
Fixed a respawn area in Snow Topped Heights to not be outside of fight area
Fixed a respawn area in Gossamer Grove
Fixed respawn areas in multiple levels
Fixed a multiplayer checkpoint in The Cursed Manor
Fixed a puzzle starting in an incorrect state in Haunted Tombs
Fixed a cloud collapsing in Heroes' Dream
Fixed a frozen mushroom in Gislan's Dream
Fixed a puzzle in Owl's Dream to disable electricity after the puzzle is completed
Fixed a platform which could be stomped through in Owl's Dream
Fixed a Stomp related bug in Cornelius's Dream
Fixed an issue where the vault door could not open if a player stood on it in Cornelius's Dream
Fixed a crystal platform that could cause the player to move outside of the play area
Fixed an issue where EXP containers could roll off the map
Reverted a fix to Pistons which was not working as intended
Made keys heavier to prevent players from flying with them
Fixed a bug related to the Fairy Rope

Other fixes
Minor camera adjustments
Minor fixes to some ledge grab issues
Minor fix to a branch in Rudolfus's Dream
Minor fix to a swing puzzle in Moonlit Forests
Minor changes to Shaders, Lighting and Bloom effects
Many small Art adjustments

Update Build 8580:
Multiple crash fixes
Improvements to logging
Fixed an issue where the player name was displayed twice
Fixed an issue where tutorial texts were displayed during cinematics
Fixed art issues in multiple levels

Update Build 8571:
A potential fix for the remaining issues with joining online multiplayer games
Multiple fixes to game crashes
A fix for situations where an out-dated fan translation mod caused the game to crash. This fix doesn't make the fan translations work, but now the game shouldn't crash and should make it easier for translators to locate and fix the problems with their language mods.
A fix for the puzzle in Cornelius's Dream, checkpoint 6 in Classic mode Multiplayer. Now only 1 box should spawn instead of 3.

Update Build 8559:
Fixed collectibles not showing for DLC levels in Map screen info panel
Fixed erroneous EXP placement in Cornelius's Dream checkpoint list
Fixed one missing EXP in Owl's Dream in multiplayer
Fixed an invisible collision blocker in Snow-Topped Heights in multiplayer
Fixed a gamestopper in Haunted Tombs in classic mode multiplayer