Java Edition Classic 0.0.23a 01

0.0.23a_01 is a version of Classic released between July 11 and 12, 2009. This version is unavailable in the launcher. It is the last version of Multiplayer Test.

Trivia

 * Notch originally planned to rename the version system, so "0.0.23a_01" would be renamed to "0.23_1".
 * It would follow the format " . [_ ]".
 * It'll be "1.0" when it hits Beta, and "1.8432" for release. "1.8432" would be the next version.