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13w38a Banner.png

Java Edition



Release date

September 19, 2013[1]

Snapshot for



Client (.json)
Server (.exe)

Protocol version


13w38a is the fifth snapshot released for Java Edition 1.7.2.


Command format[edit]

  • Added /setidletimeout <minutes until kick> to automatically kick idle players after some time.
    • Multiplayer-only command, can be used only by server operators.
NBT format
  • Added <structure>.dat files in data folder for storing structure data.
    • Contains .dat called Village.dat, Fortress.dat (Nether fortress), Temple.dat (Desert temple, jungle temple, and witch hut), Stronghold.dat, Mineshaft.dat, and others.
  • NBT structure consists of the individual parts of each structure, labeled "children," the chunk it originates in, a tag called BB, and an ID for what type of structure it is.
    • The children tags have information on each part of the structure and the type of part it is


  • Added the achievement "Diamonds to you!", which is obtained by throwing diamonds at another player.
  • The sky near the horizon now darkens when the player has blocks between them and the sky.
    • The greater the distance between the player and an area open to the sky, the darker the sky appears.





  • Reduced lag from the zombies.


  • Improved achievements.
  • When a player earns an achievement, it is now announced in chat.
  • Super Secret Settings
    • The button now applies different experimental shaders.
    • List of available shaders: antialias, deconverge, outline, art, desaturate, pencil, bits, flip, phosphor, blobs, fxaa, scan_pincushion, blobs2, green, sobel, blur, invert, wobble, color_convolve, NTSC.
  • Video Settings
    • Render distance is now a slider ranging from 2 to 16 chunks.
    • The sky is now visible on Short (4 chunks) render distance.
    • The chunks can now render past 12 chunks.
    • Max framerate is now a slider ranging from 10 to 250 fps, then unlimited.
    • Added mipmapping, anisotropic filtering, and FSAA (as a shader).
    • Mipmap levels setting is a slider ranging from off to 1 through 4.
    • Anisotropic filtering can be disabled or set to 2, 4, 8 or 16.
    • Post-Processing (shaders) can be toggled.
      • They now display on the whole block.


6 issues fixed
From released versions before 1.7.2
  • MC-28625 – The horse armor equip sound does not play when replacing it with already equipped armor.
  • MC-31065 – Villages were not generating (snapshot 13w37b).
From the 1.7.2 development versions
  • MC-30483 – When the player sets their render distance to far it stays on normal.
  • MC-30694 – Enderman stare sound still plays when the enemy mobs sound slider is at 0%.
  • MC-30822 – Enchanted books with no metadata.
  • MC-30858 – A player selector with only one matching player outputs as " and USERNAME .."


  • 13w38a was previously removed from the launcher for some time, but was added back in September 2018.