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Java Edition pre-Classic rd-20090512

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Java Edition

Date developed

May 12, 2009



This article's name is conjectural.
An official name is yet to be given to the subject matter and may change at any time.
This page documents an unreleased version.
While there is proof of this version's existence, it was never released to the public.

rd-20090512 refers to a pre-Classic version of Minecraft (then called Cave Game) made on May 12, 2009. It improved the game performance by narrowing down an unknown performance issue.[1] This version was unreleased, and no footage exists of this build.


  • Fixed an unspecified performance issue.[1]


  1. a b "lwjgl IRC logs" – Echelog, May 13, 2009. "[13:34:09] <Notch> i was trying to narrow down a performance issue last night."