5.3.1

What's Changed

Pass empty string instead of null for generator id and improve error message by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3344
Cleanup listener methods to be non-public by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3345
Fix issues with lower/uppercasing string when server is of non-english locale by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3346
Throw an error when trying to set spawn-rate or spawn-limit if disabled by config by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3349
Refactor biome parsing to use NamespacedKey and Registry by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3347
Use bukkit world properties for difficulty, scale, and keep-spawn when create/import by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3348
Bump multiverse-plugin and mockbukkit version by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3350
Fix join location on 1.21.9 due to deprecated PlayerSpawnLocationEvent by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3351
Add supported mc versions for 1.21.9 and 1.21.10 by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3356
Update wiki and add donation link in config.yml by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3355
Bump mockbukkit and fix test dep by @benwoo1110 in https://github.com/Multiverse/Multiverse-Core/pull/3358

Full Changelog: https://github.com/Multiverse/Multiverse-Core/compare/5.3.0...5.3.1