Java Edition 1.10-pre1

1.10-pre1 is the first pre-release for 1.10.

General

 * Commands
 * Usage:
 * Example:
 * Teleports a selected entity to the executor's or player's relative position.
 * Teleports a selected entity to the executor's or player's relative position.


 * Sound events

General

 * Commands
 * 's behaviour is reverted back to 16w20a and previous versions.


 * Particles
 * particle now collides with blocks.


 * Pathfinding
 * Now avoids magma blocks that are in the way.


 * Spawning
 * Most mobs no longer spawn on magma blocks. Exceptions are magma cubes, zombie pigmen, and squid.

World Generation

 * Villages
 * Now spawns grass under stairs instead of a dirt path.
 * Villages in savanna and taiga biomes now use the appropriate type of wooden fences.
 * Cobblestone now spawn around wells instead of gravel.
 * Paths now only replace grass blocks with air above, water, lava, sand, sandstone, and red sandstone. All other blocks will be ignored, with blocks below (down to sea level) considered for replacement instead.
 * This allows paths to generate properly under trees.
 * This removes the ability for paths to bridge ravines.
 * Zombie villagers generated in zombie villages no longer despawn (i.e. they have the  flag set).

Blocks

 * Structure void
 * Unbreakability removed.
 * Blast resistance reduced to 0 (was 18000003).

Items

 * Spawn eggs
 * Names of the entity spawned codes are changed to actual names of entities.

Mobs

 * Polar bears
 * Adult polar bears will jump in water if on fire.


 * Skeletons
 * Skeletons holding a tipped arrow in their off hand will now shoot that type of arrow.
 * This overrides strays' normal shooting of slowness arrows.
 * The arrows in the off hand are not consumed.
 * Burning skeletons have a 50% chance of shooting flaming arrows if raw regional difficulty is 3 or greater.


 * Villagers
 * Now run away from nearby husks.


 * Witches
 * Will drink a potion of fire resistance if they don't already have the effect and the most recent damage taken (within the past 2 seconds) was fire damage.


 * Zombies
 * Chance of setting the target on fire when burning and duration of the effect now depends on raw regional difficulty.
 * Chance is now (30 × RegionalDifficulty)%; formerly 30% on Easy, 60% on Normal, 90% on Hard).
 * Duration is now 2 × floor(RegionalDifficulty) seconds; formerly 2 seconds on Easy, 4 on Normal, 6 on Hard.
 * Husk hunger effect duration now depends on raw regional difficulty.
 * Duration is now 7 × floor(RegionalDifficulty) seconds; formerly 7 seconds on Easy, 14 on Normal, 21 on Hard.

Trivia

 * There was a gap of 15 days between the first snapshot and the first pre-release, which is abnormal according to the Mojang standards.