Datapack Codex

Java Edition 1.21.3

Minecraft Wiki article. Categories: Java_Edition_versions, Pages_with_YouTube_videos

📌 Mirrored from Minecraft Wiki

This article is reproduced from Java Edition 1.21.3 on the Minecraft Wiki. Mirrored from revision 3712261. 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.

On this page
Minecraft 1.21.3
1.21.3 banner.jpg: Infobox image for Minecraft version 'Minecraft 1.21.3'
Java Edition 1.21.3.png: Infobox image for Minecraft version 'Minecraft 1.21.3'
{
    "title": "Minecraft 1.21.3",
    "images": [
        "1.21.3 banner.jpg",
        "Java Edition 1.21.3.png"
    ],
    "rows": [
        {
            "field": "''(link to Java Edition article, displayed as Java Edition)''",
            "label": "(link to Edition article, displayed as Edition)"
        },
        {
            "field": "October 23, 2024",
            "label": "Release date"
        },
        {
            "field": "[https://piston-data.mojang.com/v1/objects/6f67d19b4467240639cb2c368ffd4b94ba889705/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/1a5238463848865b057a167442ef88b4075f17cc/1.21.3.json .json])<br />[https://piston-data.mojang.com/v1/objects/45810d238246d90e811d896f87b14695b7fb6839/server.jar Server]",
            "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
        },
        {
            "field": "[https://piston-data.mojang.com/v1/objects/42c2292dfc21de314dee5205760332c807cad411/client.txt Client]<br />[https://piston-data.mojang.com/v1/objects/c70e10f72ea65bb97e156143fd97c852dc958325/server.txt Server]",
            "label": "(link to Obfuscation map article, displayed as Obfuscation maps)"
        },
        {
            "field": "768",
            "label": "(link to Protocol version article, displayed as Protocol version)"
        },
        {
            "field": "4082",
            "label": "(link to Data version article, displayed as Data version)"
        },
        {
            "field": "42",
            "label": "<span normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
        },
        {
            "field": "57",
            "label": "<span normal;\">(link to Pack format#List of pack formats article, displayed as Data pack format)</span>"
        },
        {
            "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_21_.28LTS.29 Java SE 21]</span>",
            "label": "<span normal;\">Minimum Java version</span>"
        }
    ],
    "invimages": [],
    "footer": "<table auto; word-break: break-word;\">\n<tr inherit;\">\n<td 0.4em\" rowspan=\"2\">[[Java Edition  1.21.2|<span  1.21.2]]</td>\n<td rowspan=\"2\" 0.4em\">'''1.21.3'''</td>\n<td 0.4em\" rowspan=\"2\">[[Java Edition  1.21.4|  1.21.4 <span inherit;\">\n</tr>\n</table>"
}
Other editions with a version "1.21.3":
 

1.21.3 is a hotfix to Java Edition, released on October 23, 2024,[1] which fixes critical bugs related to joining Realms with resource packs and a bug related to salmon size. It is compatible with 1.21.2 servers.

Changes

Mobs

Salmon

  • Any small salmon from previous versions, including 1.21.2, are upgraded to their medium variants.

Fixes

2 issues fixed

From 1.21.2

  • MC-277779 – Salmon from 1.21.1 or before shrink when updating to 1.21.2.
  • MC-277791 – Attempting to join a Realm with a Resource Pack enabled fails with an error.

Videos

Video made by slicedlime:

Trivia

  • This is the latest version to not have any pre-releases or release candidates.

References

  1. ↑ "Minecraft Java Edition 1.21.3" – Minecraft.net, October 23, 2024.

Sources