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Java Edition Classic 0.0.20a

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This article is reproduced from Java Edition Classic 0.0.20a on the Minecraft Wiki. Mirrored from revision 3713442. It is licensed CC BY-NC-SA 3.0 by the Minecraft Wiki contributors — not under the Codex’s CC BY-SA 4.0, and it may not be used commercially. Edits belong upstream, not here.

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0.0.20a
Classic 0.0.20a (cropped).png: Infobox image for Minecraft version '0.0.20a'
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    "title": "0.0.20a",
    "images": [
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    "rows": [
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            "field": "June 20, 2009",
            "label": "Release date"
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            "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": "minecraft.net/play.jsp",
            "label": "(link to Applet#Hosting article, displayed as Applet page)"
        },
        {
            "field": "6.21",
            "label": "(link to al_version article, displayed as al_version)"
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    "invimages": [],
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0.0.20a is a version of Java Edition Classic released on June 20, 2009, at 20:53 UTC,[1][2] which added the inventory and as well as several new blocks.

Additions

0.0.20a block and item additionsInvicon White Cloth.png: Inventory sprite for White Cloth in Minecraft as shown in-game linking to White Cloth with description: White ClothInvicon Light Gray Cloth.png: Inventory sprite for Light Gray Cloth in Minecraft as shown in-game linking to Light Gray Cloth with description: Light Gray ClothInvicon Dark Gray Cloth.png: Inventory sprite for Dark Gray Cloth in Minecraft as shown in-game linking to Dark Gray Cloth with description: Dark Gray ClothInvicon Red Cloth.png: Inventory sprite for Red Cloth in Minecraft as shown in-game linking to Red Cloth with description: Red ClothInvicon Orange Cloth.png: Inventory sprite for Orange Cloth in Minecraft as shown in-game linking to Orange Cloth with description: Orange ClothInvicon Yellow Cloth.png: Inventory sprite for Yellow Cloth in Minecraft as shown in-game linking to Yellow Cloth with description: Yellow ClothInvicon Chartreuse Cloth.png: Inventory sprite for Chartreuse Cloth in Minecraft as shown in-game linking to Chartreuse Cloth with description: Chartreuse ClothInvicon Green Cloth.png: Inventory sprite for Green Cloth in Minecraft as shown in-game linking to Green Cloth with description: Green ClothInvicon Spring Green Cloth.png: Inventory sprite for Spring Green Cloth in Minecraft as shown in-game linking to Spring Green Cloth with description: Spring Green ClothInvicon Cyan Cloth.png: Inventory sprite for Cyan Cloth in Minecraft as shown in-game linking to Cyan Cloth with description: Cyan ClothInvicon Capri Cloth.png: Inventory sprite for Capri Cloth in Minecraft as shown in-game linking to Capri Cloth with description: Capri ClothInvicon Ultramarine Cloth.png: Inventory sprite for Ultramarine Cloth in Minecraft as shown in-game linking to Ultramarine Cloth with description: Ultramarine ClothInvicon Violet Cloth.png: Inventory sprite for Violet Cloth in Minecraft as shown in-game linking to Violet Cloth with description: Violet ClothInvicon Purple Cloth.png: Inventory sprite for Purple Cloth in Minecraft as shown in-game linking to Purple Cloth with description: Purple ClothInvicon Magenta Cloth.png: Inventory sprite for Magenta Cloth in Minecraft as shown in-game linking to Magenta Cloth with description: Magenta ClothInvicon Rose Cloth.png: Inventory sprite for Rose Cloth in Minecraft as shown in-game linking to Rose Cloth with description: Rose ClothInvicon Block of Gold.png: Inventory sprite for Block of Gold in Minecraft as shown in-game linking to Block of Gold with description: Block of GoldInvicon Rose.png: Inventory sprite for Rose in Minecraft as shown in-game linking to Rose with description: RoseInvicon Dandelion.png: Inventory sprite for Dandelion in Minecraft as shown in-game linking to Dandelion with description: DandelionInvicon Red Mushroom.png: Inventory sprite for Red Mushroom in Minecraft as shown in-game linking to Red Mushroom with description: Red MushroomInvicon Brown Mushroom.png: Inventory sprite for Brown Mushroom in Minecraft as shown in-game linking to Brown Mushroom with description: Brown Mushroom

Blocks

Block of gold[1][3]

Cloth[1][4]

  • There are 16 different colors.

Dandelion[1][5]

  • Decay when in darkness.[6]
  • Referred to internally as "flowerYellow".

Rose[1][5]

  • Decay when in darkness.[6]
  • Referred to internally as "flowerRed".

Brown mushroom[1][7]

  • Decay when in darkness.[6]

Red mushroom[1][7]

  • Decay when in darkness.[6]

Gameplay

Inventory

  • Accessed by pressing B and lists all available blocks.[1][8]
    • All available blocks previously used to be on the hotbar.[9]

Command format

/solid[1][10]

  • Toggles between placing stone and placing bedrock.

Changes

Blocks

Bedrock

  • Players can no longer destroy bedrock, although admins can.[1][11]

Cobblestone

  • Is now available again through the new inventory.

Sand

  • Is now available again through the new inventory.

Gameplay

Controls

  • The  Scroll Wheel for block selection was inverted.[12]

General

Skins

  • Made the player and human skin darker.

Technical

General

  • Removed the FPS limiter because it would cause the computer's clock to speed up.[13]

Fixes

2 bugs fixed

  • Human mobs no longer have glitched skins.
  • Water texture no longer overlaps, causing z-fighting.[verify for Java Edition]

Bugs

3 bugs reported

  • Players can no longer connect to some servers.[14]
  • Players can no longer break bedrock in singleplayer.[15]
  • Performance has reduced.

References

  • IRC logs on Archive.org; #minecraft.20090620.log. June 20, 2009 (UTC−5).
  1. ↑ a b c d e f g h i j "New server, new client version 0.0.20" (archived) – The Word Of Notch, June 20, 2009.
  2. ↑ IRC logs: "P3:53:35 <Notch> new minecraft-server.zip up, new client up, there's a protocol change, so you need to update all servers" (20:53:35 UTC)
  3. ↑ IRC logs: "P4:02:10 <Miclee> A white and yellow striped block?" (21:02:10 UTC)
  4. ↑ IRC logs: "P3:56:14 <liq3> COLORED BLOCKS" [...] "P3:59:45 <Miclee> THERE ARE COLORED ROCKS?" [...] "P4:03:43 <mezo> the cloth blocks are an awesome addition" (20:55 to 20:59 UTC)
  5. ↑ a b IRC logs: "P3:54:30 <ZomBuster> FLOWERS :D", "P3:54:34 <ZomBuster> pretty flowers" [...] "P3:58:53 <C418> wow, there are flowers! :D" [...] "P3:59:07 <ez> oooooh flowers " (20:54 to 20:59 UTC)
  6. ↑ a b c d IRC logs: "P4:27:17 <vdgmprgrmr> Why do the shrooms die in the darkness?" (21:27:17 UTC)
  7. ↑ a b IRC logs: "P4:01:02 <C418> mushrooms!" (21:01:02 UTC)
  8. ↑ IRC logs: "P3:55:09 <ZomBuster> but lol where did all the other blocks gone too" [...] "P3:55:23 <Notch> press B" [...] "P3:55:53 <AnnihilatorBeta> SO MANY BLOCKS" (20:55 UTC)
  9. ↑ IRC logs: "P4:01:23 <Miclee> Where did sponge and glass go?" [...] "P4:01:35 <liq3> Miclee: Press B." [...] "P4:04:19 <Rydia> i can only see 9 of the blocks" [...] "P4:04:25 <Miclee> Hit B" (21:01 to 21:04 UTC)
  10. ↑ IRC logs: "P3:54:59 <liq3> ./solid" [...] "P4:05:44 <Miclee> New admin command: /solid" (20:54 to 21:05 UTC)
  11. ↑ IRC logs: "P3:56:52 <Notch> admins can place unbreakable blocks now" [...] "P3:56:57 <Notch> players shouldn't be able to break them", "P3:57:00 <Notch> admins can" (20:56 to 20:57 UTC)
  12. ↑ IRC logs: "P4:02:29 <mezo> notch, you inverted the mousewheel" [...] "P4:02:43 <AnnihilatorBeta> mousewheel seems inverted" (21:02 UTC)
  13. ↑ IRC logs: ""P3:28:19 <Notch> the fps limiting did not work at all, so I'm taking it out. it caused a whole bunch of bugs with timing" [...] "P3:28:42 <LKA> Notch: I'm guessing the FPS limiting thing was why some of us have been seeing the game going somewhere around 1.5x to 2x faster than it should?" [...] "P3:31:26 <Notch> yes, LKA, I thin kso too", "P3:31:32 <Notch> so I'm taking it out for 0.0.20" (20:28 to 20:31 UTC)
  14. ↑ IRC logs: "P4:00:09 <Testvan> i cant connect to my own server anymore for unknown reasons" [...] "P4:02:06 <Cameron> lost connection suddenly. java.io.IOException: An established connection was aborted by the software in your host machine. The update broke my server, yes I installed latest server too. D:" (21:00 to 21:02 UTC)
  15. ↑ IRC logs: "P4:02:27 <C418> in single player, you can't delete those blocks [...] the black ones" [...] "P4:04:00 <Crusty> Admin blocks can't be deleted in single player, lol" [...] "P4:05:34 <greenslimy> Bug(or not): you cannot delete the blackrock" (21:02 to 21:05 UTC)

Sources