Java Edition Beta 1.9 Prerelease

Beta 1.9-pre1 is the first pre-release for 1.0.0.

Considered the "Lost Update", a full version under the name "Beta 1.9" never came. Instead, Mojang opted to delay the release of this update until MineCon 2011 and release it under the name "Minecraft 1.0.0". This decision was made after a few development versions tagged as Beta 1.9 were already sent out, so the name Beta 1.9 was kept for all of the development versions in the gap between Beta 1.8.1 and Minecraft 1.0.0, other than the Release Candidates.

Additions

 * Biomes
 * Added the mushroom island biome
 * Structures
 * Added nether fortresses
 * Mobs
 * Added:
 * Mooshrooms
 * Villagers
 * Snow golems
 * Magma cubes
 * Blazes
 * Blocks
 * Added:
 * Mycelium
 * Nether brick
 * Nether brick stairs
 * Nether brick fences
 * Nether wart
 * Lily pads
 * Items
 * Added:
 * Blaze rods
 * Ghast tears
 * Gold nuggets
 * Nether wart

Changes

 * Debug Feature:
 * Jumping increases your experience.

Issues
Issues from version Beta 1.9-pre1 can be found at Issues/Beta_1.9pre1.