Java Edition 21w37a

21w37a is the first snapshot for Java Edition 1.18, released on September 15, 2021, which brings more parity with and fixes bugs.

Blocks

 * Enchanting Table
 * Now emits a light level of 7.
 * Cave Vines, Kelp, Twisting Vines and Weeping Vines
 * Will stop growing if shears are used on the tip.

Mobs

 * Axolotls
 * Now only spawn in lush caves.
 * Now have their own mob cap.
 * Illagers
 * Will not attack baby villagers anymore.
 * Goat
 * Now only spawn in snowy slopes, stony peaks, lofty peaks, and snow capped peaks biomes.

General

 * Audio
 * The device the game outputs audio to can now be chosen in-game.


 * Options
 * Can now disable lightning flashes, which prevents lightning from making the sky flash. Lightning bolts themselves will still appear.
 * Can now prioritize chunk updates to "nearby", "by player", or "none".
 * The Sneak and Sprint, and Auto-jump options have been moved to the Controls tab.


 * Splashes
 * The splash "[this splash text has been delayed until part 2]" has been changed to "[this splash text is now available]".


 * Subtitles
 * Added subtitles for various bundle sounds.


 * Other
 * Worlds last opened before Java Edition 1.2 can no longer be opened.
 * These worlds must be opened in a version prior to 21w37a (preferably before Java Edition 1.6.4).
 * An error will be shown when attempting to open these worlds.
 * Worlds from before 21w37a currently cannot be opened, though this will change before 1.18 is released.
 * Removed length limits for scoreboards, score holders and team names.
 * Data pack format has been increased to 8.

Video
Video made by slicedlime: