Java Edition 21w16a

21w16a is the eighteenth snapshot for Java Edition 1.17, released on April 21, 2021, which adds dripstone growth to the game.

Gameplay

 * Dripstone Growth
 * If a stalactite is hanging from a dripstone block with a water source above, it will slowly grow both the stalactite from above and a stalagmite from below
 * Growth speed is random but very slow, a single growth step can take several minecraft days
 * A stalactite will only grow up to 7 blocks long
 * A stalactite will only cause stalagmite growth if the floor or stalagmite below is within 10 blocks
 * If the stalactite tip is inside water it won’t drip, and therefore won’t trigger any growth
 * If the stalagmite tip is inside water it won’t receive drops, and therefore won’t be grown by a dripping stalactite. Same thing if there is any fluid between the two tips
 * A stalagmite or stalactite will never grow into a fluid

Blocks

 * Azalea and Flowering Azalea
 * Can now be bonemealed to form Azalea Trees.


 * Raw Metal and Block of Raw Metal
 * Tweaked the texture of raw ores and raw ore blocks

Technical

 * Statistics
 * Renamed the statistic for play time to.
 * Included time when game paused for "Time with World Open".


 * Resource pack prompt
 * Users who previously permanently declined server resource packs will now still be shown the pack prompt if the pack is mandatory, instead of being immediately disconnected.