Complete changelog:

• Wolves will now attack skeletons, which will flee instead of fighting back – via
• Players in creative mode can now damage entities even if they are flagged invulnerable
• Improved position handling of item frames and paintings
• Minor tweaks to the /clone command to make it more reliable
• UUID stuffs
  • All player lists will now be converted to be UUID-based automatically
• Scoreboard improvements
  • /scoreboard can now assign scores to only people matching given NBT data: /scoreboard players set <player> <objective> <score> [dataTag]
  • Added scoreboard team property to disable death messages: /scoreboard teams option <name> deathMessageVisibility with options `never, hideForOtherTeams, hideForOwnTeam, always
• Added some new stats
  • Added stats for sneaking and sprinting: stat.crouchOneCm & stat.sprintOneCm – Screenshot 
  • Added stat to track time since last death: stat.timeSinceDeath
• Model format improvements
  • Converted more blocks: repeaters, comparators, beds, hoppers, doors, melon/pumpkin stems, cake and lily pads
  • Rotation can now be done in increments of 22.5 degrees on a single axis
  • Being able to override not just a model, not just a block’s model, but an individual block variant’s model
  • Maybe: Removing the directional attribute from the uv definition and replacing it with explicit texture references
  • Maybe: Being able to specify which texture to use
• A gamerule to hide death messages
• Added an NBT tag to disable villagers giving xp for trading
• Potion tooltips can now be hidden using HideFlags bit 5 players, maybe seeing players’ GUI when spectating from their POV
• Fixed some bugs
  • Fixed doors’ side textures being inconsistent
  • Fixed mobs looking too high when looking at players in beds
  • Fixed players’ nameplates being too low when in beds
  • Fixed the ‘Use Item’ stat corresponding to Left-click, not Right-click
  • Fixed the wither not being killed by /kill while invulnerable
  • Fixed the cake side texture looking off when partially eaten
  • Fixed phantom floating mobs being generated by mob spawners
  • Fixed selectors not including dead players
  • Fixed armor not hiding for the player himself in spectator mode
  • Fixed being able to throw items as spectator
  • Fixed mobs still following spectators
  • Fixed the @e selector not accepting scoreboard parameters for non-player entities
  • Fixed the player’s hand shifting to the side when sneaking in first-person view
  • Fixed the fishing line being cast below the player
  • Fixed the camera being too high when sleeping
  • Fixed other players’ mining/placing blocks not playing their player model animation
  • Fixed block sounds being distorted when walking to the side
  • Fixed a crash when using /clone on certain redstone circuits
  • Fixed FallingSand not being displayed when /summoned
  • Fixed signs and brewing stands not retaining their NBT data when ctrl+pick-blocked and placed
  • Fixed vines missing their back face texture
  • Fixed baby cow eye level being misplaced, causing them to suffocate in 1 block high places
  • Fixed the game crashing with certain command-block altering circuits
  • Fixed /fill still producing a comparator output when filling no blocks
  • Fixed a scoreboard bug related to players being referred to by their UUID
  • Fixed bounding boxes of item frames and paintings, they can’t overlap anymore
  • Fixed debug rendering of bounding boxes for many entities
  • Fixed potential “infinite” recursion issue with the blockdata command in commandblocks

Update: A ‘b’ snapshot has been released to address various bugs and crashes. Changelog:

• [Bug MC-50219] – “Slightly Damaged Anvil” Faces the wrong way in Inventory
• [Bug MC-50220] – “Nether Brick Fence” is not rendered correctly in inventory
• [Bug MC-50221] – Crash report on a server
• [Bug MC-50222] – Dirt texture on Grass Blocks is green
• [Bug MC-50223] – 14w10a dedicated server crash at startup
• [Bug MC-50226] – Jukebox is missing the textures when disc is inside
• [Bug MC-50229] – Scoreboard team option deathMessageVisibility error message lists wrong options when ran without option parameter
• [Bug MC-50231] – Failed to load user/ip banlist
• [Bug MC-50232] – Wheat appears as purple and black checkerbox
• [Bug MC-50233] – Double Stone Slabs have the “missing texture” texture
• [Bug MC-50235] – End Portal Frame Texture Bug
• [Bug MC-50239] – Middle-clicking hydrated farmland gives me a weird 2D dirt block
• [Bug MC-50241] – Cannot add or set scores of offline or “fake” players
• [Bug MC-50242] – Powered Repeater
• [Bug MC-50246] – Bed Bug
• [Bug MC-50250] – texture of nether wart is broken
• [Bug MC-50254] – full snowlayer block has a missing model/texture
• [Bug MC-50256] – Powered repeater doesn’t show edges of torch
• [Bug MC-50259] – Upward facing dispenser texture bug
• [Bug MC-50265] – The Nether Brick Fence fail texture in inventory
• [Bug MC-50267] – Hopper: java.lang.ClassCastException: atf cannot be cast to aoc
• [Bug MC-50270] – Hopper: java.lang.ClassCastException: atf cannot be cast to arj
• [Bug MC-50271] – When jukebox plays music disk, the texture disappears
• [Bug MC-50273] – Hopper: java.lang.ArrayIndexOutOfBoundsException: -1

Once again the majority of our time between this and the last snapshot has been spent on Plugin API related tasks (most notably inventory rewrite, block model format and block state concepting), and as such this is mostly a bugfix & mapmaker snapshot. Don’t worry, we have some cool survival plans soon!

This snapshot also has the (hopefully-)final step towards supporting name changes in Minecraft. All server files that are intended to refer to players will be automatically changed to go by UUIDs, and you do not need to do anything. However, this does mean that any third party tool will not work on these files, and will need to be updated to work with them.

Though names changes are technically supported in this snapshot, they will not be available until after 1.8 releases when we will be confident that the majority of active servers have updated to support UUIDs. We will be releasing a Minecraft 1.7.6 version soon to backport these UUID changes for normal servers.

Please report any and all bugs you find in Minecraft to bugs.mojang.com. If nobody reports a bug, we can’t fix it!

Mapmaker changes:

• Fixed stat.useItem for many items
• Fixed bounding boxes of item frames and paintings, they can’t overlap anymore
• Fixed debug rendering of bounding boxes for many entities
• Added stat.crouchedOneCm and stat.sprintedOneCm
• Testing for scores now also works in @e entity selectors
• Fixed potential “infinite” recursion issue with the blockdata command in commandblocks
• New stat.timeSinceDeath
• Added scoreboard team property to disable death messages
• Command /scoreboard players can now filter by NBT data
• Players in creative mode can now damage entities even if they are flagged invulnerable
• Improved position handling of item frames and paintings
• Minor tweaks to the /clone command to make it more reliable

Bugs fixed in this snapshot:

• [Bug MC-2053] – Inconsistent door texture
• [Bug MC-3450] – While lying in bed nearby mobs will look above the player
• [Bug MC-11681] – Players’ nameplates are too low while sleeping in beds
• [Bug MC-31047] – Use Item Stat Corresponds to Left-click, Not Right-click
• [Bug MC-44851] – Wither cant be killed with /kill while invulnerable
• [Bug MC-45375] – Improper Cake Texture
• [Bug MC-46207] – Phantom floating mobs are generated by any spawner (including natural dungeon spawners)
• [Bug MC-46223] – @a, @p, @e or @r doesn’t include dead player
• [Bug MC-46428] – Armor Doesn’t Hide for the player himself In Spectator
• [Bug MC-46430] – Spectator mode can throw item in every place, but can’t take them
• [Bug MC-46596] – In spectator mode, mobs can still follow the player
• [Bug MC-47028] – @e selector does not accept scoreboard parameters in non-player entities.
• [Bug MC-47431] – Hand shifts to the side when crouching/sneaking
• [Bug MC-47571] – Fishing line casts below the Player
• [Bug MC-47646] – Player 2 blocks higher when sleeping in bed and noclip
• [Bug MC-47656] – Other Player’s arms aren’t moving when watching them mining/placing blocks
• [Bug MC-47696] – Block sounds are distorted if walking with left and right keys
• [Bug MC-47744] – Cannot disable experience from villager trades
• [Bug MC-48160] – Cannot hide potion effect tooltips using HideFlags
• [Bug MC-48372] – Crash when using /clone on complex structure(command block and pulser)
• [Bug MC-48476] – Falling sand doesn’t display when summoned
• [Bug MC-48503] – Placing a Sign with NBT Tags doesn’t apply the tags to sign
• [Bug MC-48512] – Vines no longer have a back face texture
• [Bug MC-48544] – Baby cow eye height is misplaced and causes them to suffocate in 1-high areas
• [Bug MC-49057] – command block T flip flop (command crash game)
• [Bug MC-49142] – /fill wrong comparator output
• [Bug MC-49305] – Server Scoreboard “36>16” Bug
• [Bug MC-49375] – Brewing Stand CTRL+Middle Click Copy Derp
• And many more that weren’t on the bug tracker so we couldn’t mark them as fixed! Did I mention please report bugs? Thanks.

To get snapshots, open your launcher and press the “New Profile” button. Call it “snapshots” and check the box saying “Enable experimental development snapshots” and save. To switch to the normal version, you can select it in the dropdown at the bottom left corner of the launcher. Back up your world first or run the game on in a different folder (See the “new profile” dialog).

Snapshots can corrupt your world, please backup and/or run them in a different folder from your main worlds.

Cross-platform server jar: https://s3.amazonaws.com/Minecraft.Download/versions/14w10b/minecraft_server.14w10b.jar

Report bugs here:

• Minecraft issue tracker!