Minecraft Snapshot 15w34a

Minecraft version 15w34a, the tenth snapshot for Minecraft 1.9, has been released yesterday.

Find all servers to this version here : https://minecraft-mp.com/version/15w34a/

Changes

Combat

• New “attack strength” combat mechanic
  • A meter shows up after switching items or attacking depending on the new attack indicator option in video settings
    • Damage done depends on the fullness of the meter.
    • Fills in 0.25s for non-weapons, 0.8s for swords, pickaxes, and shovels, and 1.2s for axes.
    • Can be displayed next to the hotbar (left or right based on the player's main hand), under the crosshair or turned off
• Delay when selecting a sword, pickaxe, axe or shovel into the main hand

Maps

• Maps now start at a more useful zoom level (1:4)
• New recipe for zooming in on a map: craft shears and a map together in any shape
  • Zooms in on the lower-right quadrant of the original map.

Command blocks

• Command block contraptions from earlier versions will still work
• New textures that now vary depending on what direction they are placed, similar to logs and pistons
• 3 Modes: impulse, chain, and repeat - color changes based on mode
  • Impulse mode (orange): Command is run on rising edge
    • Same behavior and color as previous versions
  • Chain mode (green): Command is run whenever a command block pointing into this command block executes while this command block is powered - chain signal is forwarded even through disabled chain command blocks
  • Repeat mode (blue): Command is run every game tick while powered
  • Each new mode has its own block id and is obtainable with /give and pickblock
• Animated texture: The colored pixels in the middle change color
• Poweredness is now a data tag, allowing command blocks to stay enabled without needing redstone blocks next to them

Minecarts with Command Blocks

• Uses previous command block functions - no Chain or Repeat mode. However all commands before still work.
  • Because of this, there is no texture for the Command Block in the Minecart and the block is just black.
• Done button is available even when the command line is empty

Zombies and zombie pigmen

• Now lift their arms when becoming hostile

Giants

• No longer renders the model
• Still can be summoned using commands

Optimizations

• Optimized mob AI, path finding and block ticking
  • 15% tick speed increase on 16 render distance

Fixes

6 issues fixed

From released versions before 1.9

• MC-86152 – Records lose their custom name when placed in a record player

From the 1.9 development versions

• MC-83471 – "CustomPotionEffects" Inoperable with Splash / lingering Potions
• MC-85115 – Dragon Fireball doesn't have a name (entity.DragonFireball.name)
• MC-85592 – Default log4j2.xml is suboptimal

From the previous development version

• MC-86137 – Crash when breaking heads
• MC-86138 – Pick block on Mob (Dragon) Head / Structure block crashes the game

Source : http://minecraft.gamepedia.com/15w34a