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Release Java Edition Bug-fix update Patch of 1.6.1 Horse Update

Minecraft 1.6.4

Released on 19 September 2013, Minecraft Java Edition 1.6.4 is the final release of the Horse Update (1.6). It fixes world generation bugs that would have appeared in 1.7, as generated structures such as Nether Fortresses and Swamp Huts are now saved in the world file. Mojang recommended loading important areas in 1.6.4 before moving to 1.7.

Released 19 Sept 2013
Are my mods ready?

Key takeaways

  • World fix: structures such as Nether Fortresses and Swamp Huts are now saved with the world, which protects them from the world generation changes of 1.7.
  • Before 1.7: Mojang recommended playing 1.6.4 and loading the important areas of your world before switching to 1.7.
  • Final 1.6 release: 1.6.4 includes the fixes of the 1.6.3 pre-release and closes the Horse Update.

What changed

WorldsGenerated structures such as Nether Fortresses and Swamp Huts are now saved in the world file, so Blazes and Wither Skeletons keep spawning in old fortresses (MC-15547).
WorldsFixes world generation bugs that would have appeared in 1.7.
ServersNew /setidletimeout command, which sets how many minutes an idle player can stay before being kicked.
LauncherLike the other 1.6 versions, 1.6.4 requires the new Minecraft Launcher.

Source: official Java Edition 1.6.4 changelog

Mods & loaders for 1.6.4

Mods must be rebuilt for each version. Counts from the files published on Modrinth and CurseForge, in our catalog.

LoaderMods with a 1.6.4 fileLatest build
Fabric2·
NeoForge1·
Forge49.11.1.1345
Quilt1·
Shader loadersShaders with a 1.6.4 fileLatest build
Iris4·
OptiFine3·
Popular mods OptiFine · Not yet
18 mods in our catalog have a 1.6.4 file →

23 texture packs and 6 maps in our catalog support 1.6.4.

How to play 1.6.4

  1. 01

    Open the Minecraft Launcher and select Minecraft: Java Edition.

  2. 02

    Go to Installations, create a new installation and choose version 1.6.4.

  3. 03

    Back up your worlds before opening them in a new version.

From first snapshot to release

1 snapshots, 0 pre-releases and 0 release candidates over 6 days.

  1. 1.6.313 Sept 2013
  2. 1.6.419 Sept 2013
All 1 test builds →

Minecraft 1.6.4 FAQ

When was Minecraft 1.6.4 released?

On 19 September 2013, after the 1.6.3 pre-release. It is the last version of 1.6, the Horse Update. The next major version was 1.7, in October 2013.

Why should I load my world in 1.6.4 before 1.7?

Because 1.6.4 saves the position of generated structures, such as Nether Fortresses and Swamp Huts, in the world file. Mojang recommended loading important areas in 1.6.4 before heading into 1.7, so that these structures keep working after the 1.7 world generation changes.

Should I update from 1.6.2 to 1.6.4?

Yes, especially if you plan to move your world to 1.7. 1.6.4 adds no new content but protects your structures from the 1.7 world generation changes.

Do I need the new launcher for 1.6.4?

Yes. Like all 1.6 versions, 1.6.4 requires the new Minecraft Launcher introduced with the Horse Update.