Upcoming Minecraft updates.

General
■ Improved overall stability and performance ■ Reduced CPU, RAM & bandwidth usage

■ Made Singleplayer internally use a Multiplayer server[1][2]
■ Added optional single-player commands called "Cheats" on non-hardcore worlds[3] ■ Type / and then hit tab to autocomplete & get help on various commands
■ Most commands from MP are available

■ Added option to let LAN friends join SP games ■ You can choose which gamemode players join in and whether they are allowed to use cheats

■ Added demo mode for non-premium users[3] ■ Lasts 5 game days per world

■ Added chat options ■ Change which parts of chat are shown and how opaque it is
■ Toggle chat colors, links being clickable and warning prompts for links
■ Option to rebind the command key, which opens the chat with / in the textfield

■ Mobs can now spawn on top slabs and upside down stairs
■ Improved F3 mode: ■ Truncated coordinates to 5 fractional digits
■ Removed frame rendering time history graph (bottom-left)
■ 3 new values: ■ ws: Walking speed (constant)
■ fs: Flying speed (constant)
■ g: Boolean value, true when you touch the ground


■ Updated language files ■ Added tooltips for all types of Monster Egg blocks and the End Portal Frame
■ Added more descriptive tooltips for different types of tree-related blocks, sandstone and stone bricks[4]
■ Localized server commands
■ Added missing commands-related strings
■ Added missing double chest GUI caption

■ Fixed many bugs ■ Fixed texture packs in folders not showing their icon and description
■ Fixed Man-in-the-middle attack allowing hackers to log in as you when you visit their server
■ Fixed the Open texturepack folder button not working on OS X


Gameplay
■ Added Adventure mode[5] ■ Only playable using commands
■ Building, setting things on fire and using buckets is disabled
■ Players can only interact with mobs and the environment

■ Added trading[6] ■ Using emerald as currency, villagers will, depending on profession, offer different trades to players
■ There are three kinds of trades: Selling, buying and enchanting
■ As displayed in the top-most part of the trading GUI, villagers take one or more items or item stacks and give back something
■ After trading, villagers will sometimes emit purple particles for a few seconds to indicate that their trades changed
■ Otherwise unobtainable bottles o' enchanting and chainmail armor can be obtained by trading

■ Improved Creative mode inventory ■ There are categorized tabs for various groups of items and blocks
■ Added a search tab which will automatically be switched to when the chat key is hit
■ Added survival inventory tab, which shows the full inventory, a 'Destroy item' slot, armor slots including a preview of your character and a 2x2 crafting field
■ Items can now be deleted from the inventory by shift-clicking them
■ Added layered snow block, Monster Egg Blocks (Silverfish spawning blocks), Ender Portal frame and all potions[7]
■ Now shows potion effects' timers like in Survival

■ Improved experience collection ■ Depending on ore type, experience now drops from ores that drop items
■ Taking smelted items out of furnaces gives experience now
■ Destroying mob spawners gives experience now
■ Adjusted experience level progression: ■ Levels 1-15 cost 17 XP points each
■ Levels 16-30 cost 3 more XP points than the previous (cost = 17 + (level - 15) * 3)
■ Levels 31-∞ cost 7 more XP points than the previous (cost = 62 + (level - 30) * 7)


■ Improved enchanting ■ The new maximum level with bookshelves is 30, without 8
■ 15 bookshelves are enough to reach level 30
■ The 3rd slot shows the most expensive possible enchantment more often
■ Increased chances for multiple enchantments at once
■ Adjusted enchantments' to go with the new maximum level

■ Added writing in books ■ New crafting recipe for books: 3 pieces of paper and one piece of leather in any possible shape
■ New item: Book and Quill - Crafting recipe: 1 ink sac, 1 feather and 1 book in any possible shape
■ Right-click to write on & edit up to 50 pages or read
■ Click 'Done' to save the book, 'Sign' to choose a title and finalize the book

■ Improved Multiplayer ■ Made entities less likely to glitch through blocks
■ Added automagical downloading of standard sized texture packs when joining servers
■ Made server commands more descriptive
■ Added reason parameter to /ban
■ Added /seed command to show the map seed
■ Added /defaultgamemode command to choose the gamemode new players start in
■ Added /debug command to enable and disable profiling
■ /kick messages can now contain "\n" to force a new line
■ Blocks other players are mining now show cracks[8]
■ /tp can now be used to teleport to specific coordinates
■ Made server list re-orderable: shift+click or shift+arrow keys move selected servers
■ Server list now scans for LAN servers
■ Added hardcore difficulty: Players are banned upon death[9]

■ Added many minor things ■ Individual, stackable items near each other on the ground now become one item stack
■ Added shift clicking support to armor slots, brewing stands & enchantment tables
■ Added setting to disable servers offering you texture packs
■ Made the stars smaller and brighter[10]
■ Villagers spawned from spawn eggs will get a random profession now
■ Removed the downwards knockback while drowning
■ Doors being broken by zombies now show their damage

■ Improved the Pick Block key ■ You now get the actual block
■ You can now pick paintings, boats, minecarts and mobs, which will give you their spawn eggs
■ Picking huge mushroom blocks now gives mushrooms
■ You can no longer pick portal blocks

■ Fixed many bugs ■ Fixed glitchy mob prediction in multiplayer.[11]
■ Fixed fishing lines not showing in SMP.[12][13]
■ Fixed flying slowly in liquids
■ Fixed blocks with the same id but different data/damage values stacking in Creative inventory
■ Fixed boats & minecarts not being one-hit breakable in Creative
■ Fixed raw fish, dyes, saddles, potions, milk buckets and tools depleting in Creative
■ Fixed water destroying non-solid blocks when breaking them from above
■ Fixed Silk touch giving you only one slab from double slabs
■ Fixed redstone updates not propagating through unloaded chunks[14]
■ Fixed arrows scooting up to the top of the block they were shot on in MP
■ Fixed repeaters getting stuck when loading their chunk
■ Fixed endermen not opening their jaws in MP
■ Fixed tools taking damage when breaking insta-breakable blocks
■ Fixed fully charged arrows not showing their particle effect in MP
■ Fixed many sounds not playing in MP[15][16][12][17]
■ Fixed magma cubes' and slimes' jumping animations not showing in MP
■ Fixed thunderstorms not darkening the sky in MP
■ Fixed weather not fading in or out in MP
■ Fixed enchanted armor and tools not glowing to other players
■ Fixed ender pearls and eyes of ender not being aligned in the inventory
■ Fixed explosions not pushing players back in MP
■ Fixed TNT not knocking back players in MP
■ Fixed pistons not pushing back players in MP
■ Fixed the arrow representing players on held maps being offset
■ Fixed being able to duplicate sand, gravel and powered rail
■ Fixed placing a piston in front of another powered, but not extended one resulting in a glitched piston with the head's texture on all sides
■ Fixed TNT dropping as a ressource on creative mode
■ Fixed powering specifically glitched pistons crashing the game
■ Fixed players on minecarts, boats or pigs and spider jockeys not being displayed in the correct location


World Generation
■ Made sub-biome type mountains like Desert Hills or Ice Mountains taller
■ Made cocoa beans appear on some small jungle trees
■ Added optional starting chest on non-hardcore worlds[3] ■ Contents: wooden & stone tools, bread, apples, logs, planks and sticks

■ Added large biomes world type, increasing biome sizes immensely[4]
■ Added desert-specific villages
■ Added Desert Temples ■ Built out of various kinds of sandstone and wool
■ Include hidden chest room and TNT trap, with loot including rotten flesh, bones, iron ingots and gold ingots, diamonds and emeralds

■ Added Jungle Temples ■ Built out of various kinds of cobblestone
■ Contain multiple tripwire traps triggering dispensers filled with arrows
■ Loot chests include bones, rotten flesh, gold ingots, iron ingots, diamonds and emeralds

■ Added emerald ore ■ Only generates in Extreme Hills biomes
■ Occurs up to 8 times per chunk in veins of 1
■ Generates between layers 4 and 31, inclusive


Blocks & Items
■ Emerald Ore ■ Drops Emerald

■ Emerald ■ Is used to trade with villagers

■ Block of Emerald[18] ■ Crafted by putting 9 emeralds on a crafting table

■ Ender Chest ■ Crafted by surrounding an eye of ender with 8 pieces of obsidian
■ Stores each player's contents across dimensions and all Ender Chests
■ Contents are preserved even if all Ender Chests are destroyed
■ Explosion-resistant
■ Emits light and purple particles
■ Unless mined using a Silk Touch-enchanted pickaxe, they drop 8 obsidian[19]

■ Tripwire Hook[20][21] ■ String in between needs to be placed manually[22]
■ Breaking the string triggers a redstone signal, cutting it using shears doesn't
■ Entities like boats, mobs, arrows or players touching the string trigger a redstone signal[23]
■ String can be up to 40 blocks long[23]
■ Crafting recipe: Iron ingot on top of a stick on top of a wooden plank

■ String ■ Can now be placed on the ground decoratively

■ Furnaces ■ Can be fueled by wooden tools now
■ Return an empty bucket when using lava buckets as fuel now

■ Ice ■ Instead of melting in the nether, it now disappears
■ Can be obtained using Silk Touch-enchanted gear now[24]

■ Glass Panes ■ Can be obtained using Silk Touch-enchanted gear now[25]

■ Nether portal ■ Leaks into the Overworld now: Depending on difficulty, zombie pigmen rarely spawn in them

■ Half slabs ■ Added all wood types
■ Wooden slabs crafted after the update act like wood
■ Will now be top slabs when placed on the upper half of a block's side
■ When placed upside down, rails, pressure plates, levers, doors, torches, redstone torches, repeaters, redstone dust and beds can be placed on them - Redstone dust behaves like on glowstone - It transmits power horizontally and upwards, but not downwards. Redstone torches don't power redstone placed on slabs/stairs above them.

■ Stairs ■ Added Sandstone Stairs
■ Added wooden stairs for all kinds of wood
■ Adjusted hitbox
■ When placed upside down, rails, pressure plates, levers, doors, torches, redstone torches, repeaters, redstone dust and beds can be placed on them - Redstone dust behaves like on glowstone - It transmits power horizontally and upwards, but not downwards. Redstone torches don't power redstone placed on slabs/stairs above them.

■ Leaves ■ Water slowly drips through them when it's raining

■ Cauldrons ■ Slowly fill up when it's raining

■ Dispensers ■ Minecarts & boats will now be placed if there's rails/water in place
■ Instead of dispensing buckets, dispensers will now suck in or place water or lava in front of them

■ Gravel ■ Changed texture

■ Jungle leaves ■ Have a 1/200 chance to drop a cocoa bean when destroyed now

■ Lever ■ Can be placed on the ceiling now

■ Wooden pressure plates ■ Are triggered by arrows now

■ Pistons ■ Changed a few things to fight bugs, which now causes them to appear to update slightly slower - some contraptions may require changes to signal timing

■ Cocoa beans ■ Retextured item
■ Can be planted & grown on jungle wood now
■ Can be grown instantly using bone meal

■ Cookies ■ Give a full hunger point now

■ Nether Warts ■ Can now be grown in the Overworld and in the End

■ Empty buckets ■ Stack up to 16 now[26][27]
■ Stacked buckets work just like stacked glass bottles do

■ Signs ■ Stack up to 16 now
■ Crafting now gives 3 signs instead of 1

■ Golden Apple[28] ■ Has two crafting recipes now, the new one replacing gold nuggets with gold blocks
■ Second tier gives Regeneration IV, Resistance and Fire resistance effects
■ Only second tier glows like enchanted tools
■ Has attributes the Golden Apple had before 1.1[29]

■ Spawners ■ Added NBT tags to further customize spawned mobs
■ Only changeable using map editors or mods

■ Boats ■ Are not broken by lilypads anymore, instead they run straight through the lilypad now, breaking and sometimes dropping it
■ Are less glitchy and more responsive now
■ Increased maximum speed
■ When exiting, players will be moved from the boat
■ When broken, they drop a boat now

■ Minecarts ■ When on rails, they can be accelerated a bit while sitting in them
■ When exiting, players will be moved from the minecart


Mobs
■ Pigs ■ Drop 1-3 meat now

■ Slimes ■ Reduced spawn rate in superflat maps

■ Silverfish ■ When suffering from poison potions, they will now spawn more silverfish from nearby silverfish blocks more often

■ All hostile mobs ■ Become aggressive towards the last mob or player that hit them now [citation needed]