Datapack Codex

Java Edition 17w31a

Minecraft Wiki article. Categories: Java_Edition_development_versions_with_vulnerabilities, Java_Edition_versions, Java_Edition_1.12.1_snapshots, Java_Edition_snapshots_released_in_2017, Java_Edition_snapshots, Pages_with_YouTube_videos

📌 Mirrored from Minecraft Wiki

This article is reproduced from Java Edition 17w31a on the Minecraft Wiki. Mirrored from revision 3536608. 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
This page covers a development version that has a major issue under certain conditions.
 
The dedicated server for this version has a security vulnerability in the Log4j library that could be used to perform a remote code execution exploit. It can be addressed by appending a certain JVM argument to the server startup command line.[1]
Minecraft 17w31a
17w31a.png: Infobox image for Minecraft version 'Minecraft 17w31a'
Java Edition 17w31a.png: Infobox image for Minecraft version 'Minecraft 17w31a'
{
    "title": "Minecraft 17w31a",
    "images": [
        "17w31a.png",
        "Java Edition 17w31a.png"
    ],
    "rows": [
        {
            "field": "''(link to Java Edition article, displayed as Java Edition)''",
            "label": "(link to Edition article, displayed as Edition)"
        },
        {
            "field": "August 1, 2017",
            "label": "Release date"
        },
        {
            "field": "(link to Snapshot article, displayed as Snapshot)",
            "label": "(link to Version types article, displayed as Type)"
        },
        {
            "field": "(link to Java Edition 1.12.1 article, displayed as 1.12.1)",
            "label": "Snapshot for"
        },
        {
            "field": "[https://piston-data.mojang.com/v1/objects/67bfebbd0af5e7b7b4d089a7e9b63dbed2eeacd7/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/ed63bb5facba58bfeed785149e05dd33910135fc/17w31a.json .json])<br />[https://piston-data.mojang.com/v1/objects/00b83b98c91dbe3531342325f72654ef6d7be6eb/server.jar Server]",
            "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
        },
        {
            "field": "336",
            "label": "(link to Protocol version article, displayed as Protocol version)"
        },
        {
            "field": "1239",
            "label": "(link to Data version article, displayed as Data version)"
        },
        {
            "field": "3",
            "label": "<span normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
        },
        {
            "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8_.28LTS.29 Java SE 8]</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  1.12|<span  1.12]]</td>\n<td 0.4em\">'''[[Java Edition 1.12.1|1.12.1]]'''</td>\n<td 0.4em\" >[[Java Edition  1.12.2|  1.12.2 <span inherit;\">\n\n<td 0.4em\">''' 17w31a'''</td>\n<td 0.4em\">\n[[Java Edition  1.12.1-pre1|  1.12.1-pre1 ►]]\n</td>\n</tr>\n</table>"
}

17w31a is the first and only snapshot for Java Edition 1.12.1, released on August 1, 2017.[2]

Changes

General

Game credits

  • Updated game credits to include more Mojang staff.
  • Credits scroll 50% faster when viewed directly from the title screen than through the End Poem.

Splashes

  • Removed "Better than Prey!"

Skeleton

Fixes

1 issue fixed

Private issues

  • MC-119011 – Security issue with recipe book.[2]

Videos

Video made by slicedlime:

Trivia

  • 17w31a was previously removed from the launcher for some time, but was added back in September 2018.
  • Unlike most of the first-of-the-week snapshots, this snapshot was released on a Tuesday instead of a Wednesday.

References

  1. ↑ "Important Message: Security vulnerability in Java Edition" – Minecraft.net, December 10, 2021.
  2. ↑ a b "Minecraft Snapshot 17w31a" – Minecraft.net, August 1, 2017.

Sources