Minecraft Wiki
13w01a Banner.png


Release date

January 3, 2013[1]

Snapshot for




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



  • Added the 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
  • Added the daylight sensor block
  • Added a hopper block
    • 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).
  • Added a trapped chest that activates redstone
    • 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.
  • Added weighted pressure plates that 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
  • Added block of redstone
    • Stores redstone dust similar to blocks of diamond, etc.
    • Emits constant redstone power
    • Works as pushable redstone power source
  • Added a new nether quartz ore to the Nether
    • Drops 1 nether quartz item when mined
    • Generates around netherrack in the Nether
  • Added a nether brick item for crafting nether brick blocks
    • Obtained by smelting netherrack
    • Crafting recipe is 2×2 nether bricks


  • Death messages now show the weapon someone was killed with
  • Redstones circuits are more consistent and pistons should be more stable
  • Inventory management changes
    • 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
  • The texture for the locked chest block has been changed
  • Now shows the item name in game


2 bugs fixed

From released versions before 1.5

  • MC-177 – Clocked piston arm turns invisible when exiting game/dying/etc.
  • MC-184 – (Powered) redstone doesn't update right