Java Edition 15w39c

15w39c is the twenty-eighth snapshot for 1.9, which was released to fix several bugs and improve performance.

Blocks

 * Dispensers
 * Now equip pumpkins and mob heads onto the heads of players, mobs and armor stands.

General

 * Performance
 * Redstone and piston contraptions visibly update much faster.
 * Better performance on older computers.

Video
Video made by slicedlime:

Trivia

 * 15w39c was previously removed from the launcher for some time, but was added back in September 2018.