Java Edition 13w01a

13w01a is the first snapshot released for 1.5, and the first snapshot released in 2013.

Blocks

 * Block of redstone
 * Stores redstone dust similar to blocks of diamond, etc.
 * Emits constant redstone power.
 * Works as a pushable redstone power source.


 * Daylight sensors
 * Output power while receiving sunlight.
 * The level varies depending on the time zone, and it does not function at night.


 * Hoppers
 * Places and takes out items in hoppers, chests, furnaces, minecarts with chests, dispensers, and brewing stands.
 * Allows for the automation of many processes.
 * Still a work in progress (as indicated by the inventory icon).


 * Nether quartz ore
 * New ore exclusive to the Nether.
 * Drops 1 nether quartz item when mined.
 * Generates around netherrack.


 * Redstone comparator
 * Has 2 inputs and 1 output.
 * If A≥B, the output will be A, otherwise it will stay off – When the comparator is toggled, it will output full strength instead of A it will subtract B from A and need a comparator as input for B.
 * Replacement for the capacitor.
 * Whichever side gives the bigger signal will be considered signal B.


 * Trapped chests
 * Gives out a signal depending on the amount of players looking inside. 1 person = 1 strength signal, 2 people = 2, etc.
 * Crafted with a chest and a tripwire hook.
 * Large trapped chests can be staggered with large chests to allow more compact storage.
 * Texture is slightly different than a normal chest, with a red stain around the latch.


 * Weighted pressure plates
 * Detects item stacks.
 * Gold version reaches full strength at 60 items.
 * Iron version reaches full strength at 600 items.
 * Linear, so 10 strength signal means twice as many items as a 5 strength signal.

Items

 * Nether brick item for crafting nether bricks.
 * Obtained by smelting netherrack.
 * Crafting recipe is 2×2 nether bricks.


 * Nether quartz
 * Item dropped from nether quartz ore.

Blocks

 * Locked chests
 * Texture for the block was changed.


 * Pistons
 * Are more stable from previous versions.


 * Redstone circuits
 * Are now more consistent.

Items

 * General
 * Now shows the item name in-game.

Gameplay

 * Death messages
 * Now show the weapon someone was killed with.


 * Inventory management
 * Double-click items to fill the stack up as much as possible.
 * Drag item stacks around to divide them up over the dragged-over slots.
 * Drag item stacks around with the right mouse button to place one of that stack in each dragged-over slot, if that slot is not occupied already.
 * Shift double-click an item stack to move all other item stacks of that kind to that part of the inventory.
 * Press Q while the mouse is over an item in the inventory or a container to drop it.

Fixes
2 bugs fixed

From released versions before 1.5
 * – Clocked piston arm turns invisible when exiting game/dying/etc.
 * – (Powered) redstone doesn't update right.