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{{Infobox version
|title=Minecraft 1.3.1
|image=Java Edition 1.3.1.png
|edition=Java
|clienthash=33167e71e85ab8e6ddbe168bc67f6ec19d708d62
|jsonhash=af8b3899e7740cb5c83b8825dc6a0ed2f71e1b1f
|serverhash=82563ce498bfc1fc8a2cb5bf236f7da86a390646
|exehash=5dda8413c6376e0ff0eccd5817a2ca94954b16df
|date=
'''Pre-release''': July 30, 2012<br>
'''Release''': August 1, 2012
|java_manual={{wikipedia|Java version history#Java SE 5|Java SE 5|newtab=1}}
|prevparent=1.2.1
|prev=1.2.5
|next=1.3.2
|nextparent=1.4.2
}}
{{relevant guide|Java Edition guides/1.3 releases}}

'''1.3.1''' is a major update to {{JE}} released on August 1, 2012,<ref name=1.3/> which added [[Minecraft:trading]], [[Minecraft:Adventure]] mode, new generated structures ([[Minecraft:Jungle pyramid|jungle]] and [[Minecraft:desert pyramid]]s), and new blocks/items including [[Minecraft:emerald]]s, [[Minecraft:book and quill]]s, [[Minecraft:written book]]s, and [[Minecraft:tripwire]]. It also adds [[Minecraft:ender chest]]s, improved [[Minecraft:enchanting]], and splits the [[Minecraft:Creative inventory]] into separate sections. This is the first version to use an internal [[Minecraft:multiplayer]] server in [[Minecraft:singleplayer]] worlds, which resulted in [[Minecraft:/List of broken features|many broken features]]. While it was not the only 1.3 release, it was the only one before the snapshots of [[Minecraft:Java Edition 1.4.2|1.4.2]] started.

A pre-release for 1.3.1 was released on July 30, 2012,<ref name=1.3>{{cite|url=https://www.mojang.com/2012/07/the-weekly-chunk-minecraft-1-3-prerelease/|archive-url=https://web.archive.org/web/20120730234444/http://www.mojang.com/2012/07/the-weekly-chunk-minecraft-1-3-prerelease/|title=The Weekly Chunk: Minecraft 1.3 Prerelease|author=Jens Bergensten|website=Mojang.com|date=July 30, 2012}}</ref> though the full release of 1.3.1 is identical to this pre-release.

== Additions ==
{{Additions table|Oak Slab
|Spruce Slab
|Birch Slab
|Jungle Slab
|Book and Quill
|Written Book
|Cocoa
|Emerald Ore
|Emerald
|Ender Chest
|Sandstone Stairs
|Enchanted Golden Apple
|Tripwire Hook
|Block of Emerald
|Spruce Stairs
|Birch Stairs
|Jungle Stairs
|Oak Wood
|Spruce Wood
|Birch Wood
|Jungle Wood
}}

=== Blocks ===
'''{{Animate|Spruce Slab JE1.png;Birch Slab JE1.png;Jungle Slab JE1.png|32px}} [[Minecraft:Wooden slab]]s'''
* Added all wood types.
* Wooden slabs crafted after the update act like wood.
* Wooden slabs crafted before the update still act like stone.

'''[[File:Emerald Ore JE2 BE1.png|32px]] [[Minecraft:Emerald ore]]'''
* Drops an emerald.
* Only found in the [[Minecraft:extreme hills]] biome, but is very rare.

'''[[File:Ender Chest (S) JE1 BE1.png|32px]] [[Minecraft:Ender chest]]'''
* Crafted by surrounding an [[Minecraft:eye of ender]] with 8 pieces of [[Minecraft: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 [[Minecraft:Silk Touch]]-enchanted [[Minecraft:pickaxe]], they drop 8 [[Minecraft:obsidian]].

'''[[File:Sandstone Stairs (N) JE2 BE1.png|32px]] [[Minecraft:Sandstone stairs]]'''
* Crafted in the same pattern as other stairs using sandstone.

'''[[File:Tripwire Hook (texture) JE1 BE1.png|32px]] [[Minecraft:Tripwire hook]]'''
* [[Minecraft:String]] in between needs to be placed manually.
* Breaking the string triggers a [[Minecraft:redstone]] signal, cutting it using [[Minecraft:shears]] doesn't.
* Entities like [[Minecraft:boat]]s, [[Minecraft:mob]]s, [[Minecraft:arrow]]s or players touching the string trigger a redstone signal.
* String length cannot exceed 40 blocks.
* Crafting recipe: [[Minecraft:iron ingot]] on top of a [[Minecraft:stick]] on top of a [[Minecraft:planks]].

'''[[File:Block of Emerald JE1 BE1.png|32px]] [[Minecraft:Block of emerald]]'''
* Crafted by putting 9 emeralds on a crafting table.

'''{{Animate|Spruce Stairs (N) JE2 BE1.png;Birch Stairs (N) JE2 BE1.png;Jungle Stairs (N) JE2 BE1.png|32px}} [[Minecraft:Wooden stairs]]'''
* Added wooden stairs for all kinds of wood.
* Adjusted hitbox.

'''{{Animate|Oak Wood (UD) JE1.png;Spruce Wood (UD) JE1.png;Birch Wood (UD) JE1.png;Jungle Wood (UD) JE1.png|32px}} [[Minecraft:Wood]]'''
* Cannot be obtained legitimately.
* Shows the side [[Minecraft:log]] texture on all 6 sides.

=== Items ===
'''[[File:Book and Quill JE1 BE1.png|32px]] [[Minecraft:Book and quill]]'''
* Right-click to write on and edit up to 50 pages or read.
* Click 'Done' to save the book, 'Sign' to choose a title and finalize the book.
* Crafting recipe: 1 ink sac, 1 feather and 1 book in any possible shape.

'''[[File:Written Book JE1 BE1.png|32px]] [[Minecraft:Written book]]'''
* Can only be obtained by signing a book and quill.
* Can be sold to villagers.

'''[[File:Emerald JE1 BE1.png|32px]] [[Minecraft:Emerald]]'''
* Used to trade with [[Minecraft:villager]]s.
* Drops from emerald ore.
* Initially intended to be [[Minecraft:Ruby|Rubies]].

'''{{Animate|Golden Apple JE1 BE1.png;Enchanted Golden Apple JE1 BE1.gif|32px}} [[Minecraft:Enchanted Golden Apple|Golden apple]]'''
* Has two crafting recipes now.
** The [[Minecraft:enchanted golden apple|new one]] replaces the [[Minecraft:gold nugget]]s with [[Minecraft:blocks of gold]].
* Second tier gives the following:
** {{EffectLink|Regeneration}} IV (0:30)
** {{EffectLink|Resistance}} (5:00)
** {{EffectLink|Fire Resistance}} (5:00)
* Only second tier glows like enchanted tools.
* Has attributes the golden apple had before {{verlink|Java Edition 1.1}}.

=== World generation ===
'''[[File:Chest (S) JE2 BE2.png|32px]] [[Minecraft:Bonus chest]]'''
* Optional starting chest on non-hardcore worlds.
* Contents: wooden & stone [[Minecraft:tools]], [[Minecraft:bread]], [[Minecraft:apple]]s, [[Minecraft:log]]s, [[Minecraft:planks]] and [[Minecraft:stick]]s.

'''[[Minecraft:Village|Desert villages]]'''
* Added desert-specific villages.

'''{{EnvLink|Desert Pyramid|text=Desert pyramids}}'''
* Built out of various kinds of [[Minecraft:sandstone]] and [[Minecraft:wool]].
* Include hidden [[Minecraft:chest]] room and [[Minecraft:TNT]] trap, with loot including [[Minecraft:rotten flesh]], [[Minecraft:bone]]s, [[Minecraft:iron ingot]]s and [[Minecraft:gold ingot]]s, [[Minecraft:diamond]]s and [[Minecraft:emerald]]s.

'''{{EnvLink|Jungle Pyramid|text=Jungle temples}}'''
* Built out of various kinds of [[Minecraft:cobblestone]].
* Contain multiple [[Minecraft:tripwire]] traps triggering [[Minecraft:dispenser]]s filled with [[Minecraft:arrow]]s.
* Loot chests include bones, rotten flesh, gold ingots, iron ingots, diamonds and emeralds.

=== Gameplay ===
'''[[Minecraft:Adventure]] mode'''
* Only playable using commands.
* Building, destroying blocks, setting things on fire and using buckets is disabled.
* Players can only interact with mobs and the environment.
* Players can place and take items from a [[Minecraft:chest]], a [[Minecraft:furnace]] or a [[Minecraft:dispenser]].

'''[[Minecraft:Trading]]'''
* Using [[Minecraft:emerald]]s as currency, [[Minecraft:villager]]s offer different trades to players, depending on profession.
* 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 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.

=== Command format ===
'''{{cmd|seed}}'''
* Shows the map seed.

'''{{cmd|defaultgamemode}}'''
* Chooses the gamemode new players start in.

'''{{cmd|debug}}'''
* Enables and disable profiling.

'''{{cmd|gamemode}}'''
* Changes the player's gamemode.

'''{{cmd|toggledownfall}}'''
* Toggles rain and snow

'''{{cmd|time}}'''
* Changes the world time

'''{{cmd|give}}'''
* Gives an item to a player

'''{{cmd|xp}}'''
* Adds experience to a player

'''{{cmd|kill}}'''
* Kills a player

'''{{cmd|help}}'''
* Provides help for commands.

=== General ===
'''Demo mode'''
* Lasts 5 game days per world.

'''Options'''
* Chat settings
** Change which parts of the 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 text field.
* Snooper settings
** Allows users to toggle anonymous data being sent to Mojang.
** Shows which data is sent.
* Video options
** Have to be toggled manually in options.txt for now.
** Vertical synchronization.
** Fullscreen mode can now be enabled at startup.
* Added setting to disable servers offering the player texture packs

'''[[Minecraft:Large Biomes]] world type'''
* Generated as default worlds, but 16× bigger
* Beaches look closely to what they looked like in [[Minecraft:Java Edition Beta 1.7.3]] and prior.

== Changes ==
=== Blocks ===
'''{{animate|Oak Log (EW) JE1.png;Oak Log (NS) JE1.png|32px}} {{animate|Spruce Log (EW) JE1.png;Spruce Log (NS) JE1.png|32px}} {{animate|Birch Log (EW) JE1.png;Birch Log (NS) JE1.png|32px}} {{animate|Jungle Log (EW) JE1.png;Jungle Log (NS) JE1.png|32px}} [[Minecraft:Log]]'''
* Can now be placed in 3 different directions.
* Placement works like similar to piston placement.

'''[[File:Furnace (S) JE2 BE1.png|32px]] [[Minecraft:Furnace]]s'''
* Can be fueled by wooden [[Minecraft:tool]]s now.
* Return an empty [[Minecraft:bucket]] when using lava buckets as fuel now.

'''[[File:Lava JE14.png|32px]] [[Minecraft:Lava]]'''
* Now replaces air below Y=11, instead of Y=12.

'''[[File:Ice JE1.png|32px]] [[Minecraft:Ice]]'''
* Instead of melting in [[Minecraft:the Nether]], it now disappears.
* Can be obtained using ''Silk Touch''-enchanted gear now.

'''[[File:Glass Pane (EW) JE1 BE1.png|32px]] [[Minecraft:Glass pane]]s'''
* Can be obtained using ''Silk Touch''-enchanted gear now.

'''{{EnvLink|Nether portal}}'''
* "Leaks" into the Overworld now: depending on difficulty, [[Minecraft:zombie pigmen]] rarely spawn in them.

'''{{Animate|Brick Slab Top JE1 BE1.png;Cobblestone Slab Top JE1 BE1.png;Oak Slab JE1.png;Birch Slab JE1.png;Spruce Slab JE1.png;Jungle Slab JE1.png;Sandstone Slab JE3 BE5.png;Smooth Stone Slab Top JE1 BE1.png;Seamless Stone Slab Top JE1 BE1.png;Stone Brick Slab Top JE1 BE1.png|32px}}{{info needed|why are some of these top and others not}} [[Minecraft:Slab]]s and {{animate|Oak Stairs (N) JE1 BE1.png;Birch Stairs (N) JE2 BE1.png;Spruce Stairs (N) JE2 BE1.png;Jungle Stairs (N) JE2 BE1.png;Cobblestone Stairs (N) JE2 BE3.png;Brick Stairs (N) JE1.png;Nether Brick Stairs (N) JE3 BE1.png|32px}} [[Minecraft:stairs]]'''
* Now placed upside-down when placed on the upper half of a block's side.
* When placed upside down, [[Minecraft:rails]], [[Minecraft:pressure plate]]s, [[Minecraft:lever]]s, [[Minecraft:door]]s, [[Minecraft:torch]]es, [[Minecraft:redstone torch]]es, [[Minecraft:repeater]]s, [[Minecraft:redstone dust]] and [[Minecraft:bed]]s can be placed on them. Redstone dust on these blocks transmits power horizontally and upwards, but not downwards (this also has the side effect of not causing quasi-connectivity). Additionally, redstone torches don't power redstone placed on slabs/stairs above them.

'''{{Animate|Oak Leaves JE3 BE4.png;Birch Leaves JE1 BE2.png;Spruce Leaves JE1 BE2.png;Jungle Leaves JE1 BE2.png|32px}} [[Minecraft:Leaves]]'''
* Water slowly drips through them when it's raining.

'''[[File:Cauldron JE1.png|32px]] [[Minecraft:Cauldron]]s'''
* Slowly fill up when it's raining.

'''[[File:Dispenser (S) JE2 BE1.png|32px]] [[Minecraft:Dispenser]]s'''
* [[File:Minecart JE2 BE1.png|32px]] [[Minecraft:Minecart]]s & [[File:Oak Boat JE1.png|32px]] [[Minecraft:boat]]s are now placed if there's rails/water in place.
* Instead of dispensing buckets, dispensers now suck in or place water or lava in front of them.

'''[[File:Gravel JE4 BE3.png|32px]] [[Minecraft:Gravel]]'''
* Texture changed from [[File:Gravel JE3 BE2.png|32px]]

'''[[File:Ceiling Lever (W) JE4.png|48px]] [[Minecraft:Lever]]s'''
* Can be placed on the underside of blocks.

'''[[File:Oak Pressure Plate JE3 BE1.png|32px]] [[Minecraft:Wooden pressure plate]]s'''
* Can be triggered by [[Minecraft:arrow]]s.

'''{{Animate|Piston (S) JE1 BE1.png;Sticky Piston (S) JE1 BE1.png|32px}} [[Minecraft:Piston]]s'''
* Now take 2 redstone ticks (0.2 seconds) to expand.

'''[[File:TNT JE2 BE1.png|32px]] [[Minecraft:TNT]]'''
* Depending on difficulty, does different amounts of damage now:
** Peaceful: no damage
** Easy: ~50% less damage
** Normal: same damage as before
** Hard: {{frac|33|1|3}}% more damage.

'''{{Animate|Nether Wart Age 0 JE1.png;Nether Wart Age 1-2 JE1.png;Nether Wart Age 3 JE1.png|32px}} [[Minecraft:Nether wart]]'''
* Can now be grown in the Overworld and in the End.

'''[[File:Oak Sign JE1 BE1.png|32px]] [[Minecraft:Sign]]s'''
* Stack up to 16 now.
* Crafting now gives 3 signs instead of 1.

'''[[File:Spawner JE2.png|32px]] [[Minecraft:Monster spawner]]s'''
* Added NBT tags to further customize spawned mobs.
* Only changeable using map editors or mods.

'''[[File:Oak Door JE4 BE3.png|32px]] [[Minecraft:Door]]'''
* Doors being broken by [[Minecraft:zombie]]s now show their damage.

=== Items ===
'''[[Minecraft:Tool]]s'''
* Breaking a block that can be [[Minecraft:instant mining|instantly mined]] by hand while holding a block-breaking tool no longer reduces the tool's [[Minecraft:durability]].

'''[[File:String JE1 BE1.png|32px]] [[Minecraft:String]]'''
* Can now be placed as tripwire.

'''[[File:Coal JE2 BE1.png|32px]] [[Minecraft:Charcoal]]'''
* Added to the Creative inventory.

'''[[File:Cocoa Beans JE3 BE2.png|32px]] [[Minecraft:Cocoa beans]]'''
* Texture changed from [[File:Cocoa Beans JE1 BE1.png|32px]]
* Can be planted & grown on jungle wood now.
* Can be grown instantly using [[Minecraft:bone meal]].

'''[[File:Cookie JE1 BE1.png|32px]] [[Minecraft:Cookie]]s'''
* Give a full hunger point now.

'''[[File:Book JE1 BE1.png|32px]] [[Minecraft:Book]]'''
* Changed crafting recipe: 3 pieces of paper and one piece of leather in any shape.

'''[[File:Bucket JE1 BE1.png|32px]] Empty [[Minecraft:bucket]]s'''
* Stack up to 16 now.

=== Mobs ===
'''All mobs'''
* Mobs can now spawn on top of all upside down slabs and stairs.

'''[[File:Pig JE2 BE1.png|48px]] [[Minecraft:Pig]]s'''
* Drop 1-3 porkchops instead of 0-2.

'''[[File:Slime JE2 BE1.png|48px]] [[Minecraft:Slime]]s'''
* Reduced spawn rate in superflat maps.

'''[[File:Silverfish JE1 BE1.gif|48px]] [[Minecraft:Silverfish]]'''
* When suffering from Poison potions, they now spawn more silverfish from nearby silverfish blocks more often.

'''[[File:Creeper JE3 BE1.png|48px]] [[Minecraft:Creeper]]s'''
* Increased knockback effect.
* Become aggressive towards the last mob or player that hit them now.
* Become neutral against players again a few seconds after being hit in Creative.
* Depending on difficulty, they do less or more damage now:
** Easy: ~50% less damage
** Normal: same damage as before
** Hard: {{frac|33|1|3}}% more damage.

'''[[File:Spider JE3 BE2.png|48px]] [[Minecraft:Spider]]s'''
* Become aggressive towards the last mob or player that hit them now

'''[[File:Skeleton JE4 BE2.png|48px]] [[Minecraft:Skeleton]]s and [[File:Zombie JE2 BE1.png|48px]] [[Minecraft:zombie]]s'''
* Become neutral against players again a few seconds after being hit in Creative.

'''[[File:Enderman JE2.png|96px]] [[Minecraft:Endermen]]'''
* Endermen now stalk the player when aggravated.

'''{{Animate|Farmer.png;Librarian.png;Priest.png;Blacksmith.png;Butcher.png;Nitwit.png|32px}} [[Minecraft:Villager]]s'''
* Villagers spawned from [[Minecraft:spawn egg]]s get a random profession now.

=== Non-mob entities ===
'''[[File:Oak Boat JE1.png|32px]] [[Minecraft:Boat]]s'''
* Are not broken by [[Minecraft:lily pad]]s anymore, instead they run straight through the lily pad now, breaking and sometimes dropping it.
* When they crash they can sometimes drop themselves.
* Are less glitchy and more responsive now.
* Increased maximum speed.
* When exiting, players are moved from the boat.
* When broken by a player, they drop a boat now.

'''[[File:Minecart JE2 BE1.png|32px]] [[Minecraft:Minecart]]s'''
* When on rails, they can be accelerated a bit while sitting in them.
* When exiting, players are moved from the minecart.

=== World generation ===
'''Biomes'''
* Increased the scale and depth of some biomes:
{| class="wikitable"
|-
! rowspan="2" style="text-align:center;" | Biomes
! colspan="2" | Before 12w19a
! colspan="2" | After 12w19a
|-
| '''Scale'''
| '''Depth'''
| '''Scale'''
| '''Depth'''
|-
| {{BiomeLink|Desert Hills}}
| 0.2
| 0.7
| 0.3
| 0.8
|-
| {{BiomeLink|Wooded Hills|text=Forest Hills}}
| 0.2
| 0.6
| 0.3
| 0.7
|-
| {{BiomeLink|Windswept Hills|text=Extreme Hills}}
| 0.2
| 1.3
| 0.3
| 1.5
|-
| {{BiomeLink|Snowy Mountains|text=Ice Mountains}}
| 0.2
| 1.2
| 0.3
| 1.3
|-
| {{BiomeLink|Jungle Hills}}
| 1.8
| 0.2
| 1.8
| 0.5
|-
| {{BiomeLink|Taiga Hills}}
| 0.2
| 0.7
| 0.3
| 0.8
|}

'''Extreme hills biomes'''
* Now generate with [[Minecraft:emerald ore]].
* Occurs up to 8 times per chunk in blobs of 1.
* Generates between layers 4 and 31, inclusive.

'''Jungle trees'''
* Made cocoa beans appear on some small jungle trees

=== Gameplay ===
'''[[Minecraft:Breaking]]'''
* The 1⁄4 second (5 game tick) delay between block breaking has been removed for players in [[Minecraft:Survival]]. The player can now [[Minecraft:Instant mining|instantly mine]] a large amount of blocks in survival simply by holding {{control|destroy}} if conditions are met.

'''[[Minecraft:Creative inventory]]'''
* There are categorized tabs for various groups of items and blocks.
* Added a search tab that is automatically 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 the player's character and a 2×2 crafting field.
* Items can now be deleted from the inventory by shift-clicking them.
* Added [[Minecraft:snow|layered snow]] block, monster egg blocks ([[Minecraft:silverfish]] spawning blocks), [[Minecraft:end portal frame]] and all [[Minecraft:potion]]s.
* Now shows potion effects' timers like in Survival.
* The player now spawns with an empty inventory in Creative mode.

'''[[File:Experience Orb (sprite) Revision 1.gif]] [[Minecraft:Experience]] collection'''
* Depending on ore type, experience now drops from ores that drop items.
* Taking smelted items out of furnaces gives experience now.
* Destroying [[Minecraft: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 31–38 cost 7 more XP points than the previous (cost = 62 + (level - 30) * 7)

'''[[File:Enchanting Table JE1 BE1.png|32px]] [[Minecraft:Enchanting]]'''
* The maximum enchanting level is now 30 and can be reached with only 15 [[Minecraft:bookshelves]].
* The 3rd slot shows the most expensive possible enchantment more often.
* Increased chances for multiple enchantments at once.
* Adjusted [[Minecraft:enchantments]] to go with the new maximum level.

'''[[Minecraft:Multiplayer]]'''
* Added option to let LAN friends join SP games.
** The player can choose which gamemode players join in and whether they are allowed to use cheats.
* Made entities less likely to glitch through blocks.
* Added automatic downloading of standard-sized texture packs when joining servers.
* Blocks other players are mining now show cracks.
* 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.
* Connections are now encrypted to prevent eavesdropping.
* Added SRV Record Lookup support.
** Different subdomains of one domain can handle different servers via different port numbers.
** Service name should be "minecraft"; i.e. "_minecraft._tcp.example.com".

'''Added & changed 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.
* Made the stars smaller and brighter.
* Removed the downwards knockback while drowning.
* The "Mojang" splash screen when opening the game appears for 1 instead of 3 seconds now.
* The sky color in [[Minecraft:the End]] changed.
* Blocks now show cracks when destroying them while the GUI is hidden.
* The [[Minecraft:player]] can now fall 4 blocks without getting hurt (might be a bug as there exist other, higher distances that don't cause damage either).
* The cracking particles no longer instantly appear when mining blocks.
* The inventory sprites for all blocks now face the top right of the block, instead of the top left.
* When riding a [[Minecraft:minecart]] that is currently on a [[Minecraft:rail]], using directional keys allows the player to slowly move the minecart in that direction.

'''''Pick Block'' key'''
* The [[Minecraft:player]] now gets the actual block.
* The player can now pick [[Minecraft:painting]]s, [[Minecraft:boat]]s, [[Minecraft:minecart]]s and [[Minecraft:mobs]], which give them their [[Minecraft:spawn egg]]s.
* Picking huge mushroom blocks now gives [[Minecraft:mushroom]]s.
* The player can no longer pick portal blocks.

=== Command format ===
'''Server commands'''
* Are now more descriptive.

'''{{cmd|ban}}'''
* Added <code>reason</code> parameter.

'''{{cmd|kick}}'''
* Can now contain <code>\n</code> to force a new line.

'''{{cmd|tp}}'''
* Can now be used to teleport to specific coordinates.

=== General ===
'''[[Minecraft:Launcher]]'''
* Includes [[Minecraft:demo mode]]. ''Note: Clicking on demo mode without the game installed does not work, and instead freezes at game updating and does not download.''
* The "Loading update news" message which appears when the launcher attempts to load the release feed is now styled, rather than the plain html it was prior.

'''Performance'''
* Reduced CPU, RAM & bandwidth usage.
* Accelerated chunk loading.
* Decreased lag spike frequency.
* Made the Nether less laggy.
* Decreased unnecessary world updates.
* Made the chat work smoothly even when the server is laggy.
* Decreased packets sent between client and server.

'''Servers'''
* Made singleplayer internally use a multiplayer server.
* Decreased world saving intervals.
* The server jar now accepts [[Minecraft:Tutorials/Setting_up_a_server#Minecraft_options|command-line arguments]] <code>--bonusChest</code>, <code>--demo</code>, <code>--port</code>, <code>--singleplayer</code>, <code>--universe</code>, and <code>--world</code>. The old <code>nogui</code> argument still works for backward compatibility.

'''[[Minecraft:Debug screen]]'''
* Truncated coordinates to 5 fractional digits.
** For example, if the player is at X: 11,427,276, instead of the game displaying X: 1.1427276483E7, it now displays X: 11427276.
* The Y-coordinate now shows both the feet level and the eye level.
* Removed frame rendering time history graph (bottom-left).
* 3 new values:
** <code>ws</code>: Walking speed (constant)
** <code>fs</code>: Flying speed (constant)
** <code>g</code>: Boolean value, true when the [[Minecraft:player]] touches the ground.

'''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.
* Localized server command responses.
* Added missing commands-related strings.
* Added missing double chest GUI caption.

'''[[Minecraft:Superflat]] world type'''
* Respawning in superflat is no longer random.

== Removals ==
=== General ===
'''[[Minecraft:Java Edition distance effects/Historical effects|Distance effects]]'''
* The particles from adding an [[Minecraft:eye of ender]] to an [[Minecraft:End portal frame]] block no longer appear offset if performed at high distances from the world origin.
** This is due to the fact that they simply did not appear at all from this snapshot onwards, which is {{bug|MC-10369|another bug entirely.}}
** This bug resurfaced in [[Minecraft:Java Edition 19w14a]] when the aforementioned absent particles bug was fixed.

== Fixes ==
'''41 bugs fixed'''
* Fixed texture packs in folders not showing their icon and description.
* Fixed Man-in-the-middle attack allowing intruders to log in as the player when they visit their server.
* Fixed the Open texture pack folder button not working on macOS.
* Fixed liquids slowing down flying players.
* 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 the player only one slab from double slabs.
* Fixed redstone updates not propagating through unloaded chunks.
* Fixed repeaters getting stuck when loading their chunk.
* Fixed tools taking damage when breaking insta-breakable blocks.
* Fixed a few misalignments in the item sprite sheet.
* 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 resource in Creative mode.
* Fixed powering specifically glitched pistons crashing the game.
* Fixed the End Portal Frame block not showing as a block in the inventory.
* Fixed weather not working correctly in certain biomes.
* Fixed Overworld portals above Y=127 not being recognized when leaving the Nether.
* Fixed various hacked mob spawners crashing the game.
* Fixed thrown splash potions not preserving their type when reloading the world.

'''Multiplayer only'''
* Fixed arrows scooting up to the top of the block they were shot on.
* Fixed endermen not opening their jaws.
* Fixed fully charged arrows not showing their particle effect.
* Fixed many sounds not playing.<ref>{{tweet|dinner|196989168549756928|I just inadvertently made it so that you can hear other players' footsteps in #minecraft while fixing some other bugs. Fun!|April 30, 2012}}</ref><ref>{{tweet|dinner|196991651720343553|All this time I've been playing #minecraft multiplayer... all these sounds I've been missing out on. No more, I say! I deserve sounds too!|April 30, 2012}}</ref><ref name="fishingsound">{{tweet|dinner|196992116889624576|I demand equal rights (sounds?) for both singleplayer and multiplayer... players... Yeah! And also fishing rods. And everything else.|April 30, 2012}}</ref><ref>[https://web.archive.org/web/20131026094153/https://twitter.com/Dinnerbone/status/196993880204394496 "It is. Every sound is now fixed." - @Dinnerbone] on Twitter; April 30, 2012</ref>
* Fixed magma cubes' and slimes' jumping animations not showing.
* Fixed thunderstorms not darkening the sky.
* Fixed weather not fading in or out.
* Fixed enchanted armor and tools not glowing to other players.
* Fixed explosions not pushing players back.
* Fixed TNT not knocking back players.
* Fixed pistons not pushing back players.
* Fixed players on minecarts, boats or pigs and spider jockeys not being displayed in the correct location.
* Fixed glitchy [[Minecraft:mob]] prediction.<ref>{{tweet|dinner|181817339979907072|I know lots of people want us to fix the glitchy mob movement in MP, but I'm afraid we can't do it for 1.2.4 :( It'll be in 1.3 though!|March 19, 2012}}</ref>
* Fixed fishing lines not showing.<ref name="fishingsound"/><ref>[https://web.archive.org/web/20130919113411/https://twitter.com/Dinnerbone/status/196991444353957888 "Perhaps I already did!" - @Dinnerbone] on Twitter; April 30, 2012</ref>
* Fixed sneaking players' nameplates not staying hidden when loading the chunks they are in.
* Fixed Unbreaking-enchanted tools sometimes breaking and then re-appearing a few times.
* Fixed potion effects losing their graphical effects when traveling between dimensions.
* Fixed blocks disappearing when placing them under the player and jumping.

== Videos ==
{{yt|e7UluJ6-Mdo}}

== Trivia ==
* 1.3 was a version that held several development-related records, until the development of [[Minecraft:Java Edition 1.8]].
** The most snapshots for a major release: 19.
** The longest development period, from first snapshot to final release: 111 days.
** The longest wait between major releases, with a release 153 days after the release of [[Minecraft:Java Edition 1.2.1]] (later broken by the wait time between Java Edition 1.8 and [[Minecraft:Java Edition 1.9]]).
* If the player changed their skin after Java Edition 1.8 was released, 1.3.1 would be the oldest version to display that skin change. If the player plays on [[Minecraft:Java Edition 1.2.5]] or older versions they still see the last skin they used before Java Edition 1.8.
* 1.3 is the last major update to {{JE}} without an official name and promotional image.

== References ==
{{reflist}}

== Navigation ==
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Minecraft:Java Edition 1.3.1 - Revision history

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