Java Edition Infdev 20100327

A version of Minecraft Infdev was released on March 27, 2010.

With its introduction of the Alpha level format and the reintroduction of level saving, this is the first version where worlds created in it can be opened (after necessary conversions using certain ranges of versions) in any subsequent version (excluding certain snapshots for Java Edition 1.17 and Java Edition 1.18, which are designed to reject older worlds rather than being fundamentally incompatible) without the need for external editors.

Additions

 * The game now automatically saves while playing.
 * The Far Lands generate 12,550,824 blocks away on the X and Z axes.

Changes

 * The terrain generator has been revamped.
 * The level format has been updated from the Indev level format to the Alpha level format.
 * The world saving interface has been revamped. It is now identical to the system seen in Alpha through early Beta.
 * The player dying causes the contents of their inventory to drop, and respawns the player at the starting location, rather than forcing the player to reload the last save.
 * The player no longer starts with any items in new worlds.
 * The "generate new level..." button has been replaced with a "single player" button which opens a world selection screen, in which worlds can be loaded, created, and deleted. The "load level.." button has been replaced with a "multi player" button, although it is always grayed out.
 * Furnaces now smelt faster. (4 seconds per item instead of 8)

Removals

 * Caves and flowers no longer generate, as they are not yet implemented in the new terrain generator.
 * The defunct map theme, map shape, and map type buttons have been removed from the interface.
 * Debug tools are removed from the player's inventory.

Bugs

 * Naturally-generated places that do not have direct exposure to the sky (e.g. cliff overhangs) are completely dark until given a light/block update.
 * The top of the map is only lit by the sky and causes crashes.
 * After dying, the player's body remains lying where they died. The body can be pushed around and still has the idle animation, as if it were still alive.
 * After loading an existing world, ores and trees regenerate if the conditions are correct (e.g. the place where ore would generate is filled with stone).
 * Wheat crops, fire, farmland, torches and saplings preserve their data values in the occupied space, resulting in newly-placed blocks to take on the data value of the block previously occupying that space allowing for any block from this version to obtain a damage value between 0-15. (Though the item form has to be obtained with silk touch in a later version.)
 * Containers (i.e. chests and furnaces) sometimes do not save.
 * They require a chunk update in their chunk to update
 * The Far Lands now generate.
 * When generating a new world, the game may stop responding on some laptops.

Fixes

 * The game's performance no longer drastically degrades progressively.