Java Edition Classic 0.0.13a/Development

Several unreleased development versions of the game labeled 0.0.13a were developed on May 21st. They show in-development features later included in 0.0.13a and later releases. The huge world size features showcased in these versions would not be publicly available until 0.0.14a.

This section documents a formerly unreleased version.

 

This version was never intended to be released to the public, but it is available in archived copies.

0.0.13a

{
    "title": "0.0.13a",
    "images": [
        "Classic 0.0.13a-dev.png"
    ],
    "rows": [
        {
            "field": "''(link to Java Edition article, displayed as Java Edition)''",
            "label": "(link to Edition article, displayed as Edition)"
        },
        {
            "field": "May 21, 2009",
            "label": "Date developed"
        },
        {
            "field": "[https://piston-data.mojang.com/v1/objects/936d575b1ab1a04a341ad43d76e441e88d2cd987/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/7677a2d81caba8719dc797851828032ddf45d622/c0.0.13a.json .json])",
            "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
        },
        {
            "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_5 Java SE 5]</span>",
            "label": "<span normal;\">Minimum Java version</span>"
        },
        {
            "field": "Unspecified",
            "label": "(link to al_version article, displayed as al_version)"
        }
    ],
    "invimages": [],
    "footer": "</tr>\n</table>"
}

• Additions
  • Added a thin black block selection outline.
  • Pressing Esc now opens the pause menu (but doesn't close it yet), with options to return to game, generate a new level, and (not yet functional) save/load level. Unlike in the final release of 0.0.13a, the "Game menu" text at the top is missing, and the background gradient is slightly different.
• Changes
  • Changed the game's resolution from 640×480 to 854×480.
  • The block being used is once again shown in the top right corner.
  • Made swimming and sinking faster than before.
  • Holding the jump key no longer allows for autojumping.
  • Jump height reduced back to just over 1 block instead of just over 1.5 blocks.
  • This is the earliest known version where holding down R no longer causes the player to cycle between different locations - holding the key now has the same effect as simply pressing it.
  • Lava is no longer transparent and has a thick, red mist when underneath it.
  • Changed the texture of saplings from to .
  • The generated world is now completely flat. When generating a new level from the pause menu, the world is of a long shape (32×64×512), but still flat. However, caves and underground lava can still generate in these worlds.
• Trivia
  • This is the only 0.0.13a developer build that is available in the launcher, added to it among several other versions on August 6, 2013.

• 
  A screenshot of world size test 1.
• 
  A long flat strip of grass block.
• 
  Screenshot of this version from Dinnerbone.
• 
  Lava in a cave.

This section documents an unreleased version.

 

While there is proof of this version's existence, it was never released to the public.

• Changes
  • The world is now 1024×64×64 instead of 512×64×32 in size, and generates actual terrain.^[1]
  • Terrain has been updated to the 0.0.13a_03 format.
  • Dirt layer is now more uniform.
    • There is always a single block of dirt after grass and before stone.
  • If water generates next to lava on world generation, it now produces stone.
• Trivia
  • It is very likely this version has the new level generation screen, however this is not confirmed.

This section documents an unreleased version.

 

While there is proof of this version's existence, it was never released to the public.

YouTube video (reupload)

• Changes
  • The world size is now 512×64×512.
  • Surface lava lakes are still possible, as seen in the video.
  • The world generation screen has been changed.
    • The dirt background is now darker.
    • Added a progress bar below the progress text.

• IRC logs, #minecraft.20090521.log (May 21, 2009, UTC+2).