Java Edition Alpha v1.0.0

Alpha v1.0.0 is the first Alpha version of the game, released on June 30, 2010. It was the second of two versions released on June 30, 2010, originally labeled "Minecraft Infdev" at the top left corner while playing in a world; Notch retroactively decided this version would be named Alpha v1.0.0 upon the release of Alpha v1.0.1.

On June 29, 2010, about 19 hours before the official release, there was a downloadable version to test the offline client.

Fixes

 * Signs work the way they used to.
 * A few other minor bug fixes.