Java Edition 11w47a

11w47a is the first snapshot for Java Edition 1.1, released on November 24, 2011, which fixed a bug and optimized the game. 11w47a is the first snapshot released in 2011 and the first snapshot ever released for under the new naming format.

Changes

 * Optimizations
 * Subtle code optimizations.

Fixes

 * 1 bug fixed
 * Fixed a bug with double doors where one may not open correctly.