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Minecraft b1.6.6

Beta era, 2010–2011 — before 1.0. Version facts below are read from Mojang’s own files — the official manifest plus the version.json inside the jar.

Contents (5)
  1. What changed in b1.6.6
  2. New in-game text
  3. Reworded text
  4. Version facts
  5. Neighbouring versions

Java What changed in b1.6.6

Everything below is measured by comparing the game files of b1.6.5 with b1.6.6 — not copied from patch notes.

Minecraft did not ship a data generator until January 2018, so there is no registry of blocks and items to compare for a build this old. What is below is read from the game’s own client.jar: the text the game displays, and the textures, models and sounds it ships. New blocks and items almost always show up in both.

New in-game text 3

KeyText
performance.balancedBalanced
performance.maxMax FPS
performance.powersaverPower saver

Reworded text 1

Wording Mojang changed in this version.

KeyBeforeAfter
options.framerateLimitFramerate capPerformance

Version facts

EditionJava Edition
TypeOld Beta
Release date30 May 2011
Minimum Java versionJava 8
Asset indexpre-1.6
Client jar1.4 MB sha1 f95fe05711d0…
Previousb1.6.5
Nextb1.7
Official metadatab1.6.6.json
PlatformsWindows macOS Linux
Written inJava
DeveloperMojang Studios