A rather severe memory leak was uncovered when BKCommonLib was used together with Traincarts. Besides patching this bug, performance was improved in a lot of areas found through profiling the server.

Memory Usage

• [Fixed] Severe memory leak when spawning and teleporting entities because of glitch in ClassHook thread local cleanup
• [Fixed] Input streams were not closed when loading map texture resources
• [Improved] Reduced memory consumption of the YAML API

Performance

• [Improved] nextTick scheduling made more efficient with less locking
• [Improved] Server item frame vanilla map refreshing is disabled when a map display is displayed on it
• [Improved] Reduced overhead converting vectors to Minecraft vector types
• [Improved] DataWatcher (not bound to entity) set() performance improved
• [Improved] Entity location and velocity setting and getting overhead reduced
• [Improved] Entity Move event change detection overhead reduced
• [Improved] Minor performance boost of WorldUtil getBlockData(world, x, y, z)
• [Improved] Changes to code generation engine eliminates unneeded casts and boxing overhead
• [Improved] Reduced number of invoke/invokeVA stack frames

Other

• [Added] Entity Controller setBlockActivationEnabled option, which newer builds of TrainCarts uses to disable unneeded block collision tests
• [Fixed] Negative position error in AsyncTextWriter occurred in some environments
• [Fixed] Errors and server crashes when saving/unloading a world (affected Light Cleaner and MyWorlds delete/unload commands)
• [Fixed] Writing chunk lighting information was not synchronized right, resulting in rare errors
• [Fixed] Template error in entity tracker entry, caused errors on some versions of Minecraft
• [Added] Support for Purpur server fork
• [Added] Issue on paperspigot was fixed in ProtocolLib, support was added for these changes
• [Added] Quaternion and Matrix4x4 getYaw/getPitch/getRoll component functions