Java Edition 1.12.1

Minecraft Wiki article. Categories: Java_Edition_releases_with_vulnerabilities, Java_Edition_versions, Pages_with_YouTube_videos

📌 Mirrored from Minecraft Wiki

This article is reproduced from Java Edition 1.12.1 on the Minecraft Wiki. Mirrored from revision 3609865. 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.

This page covers a release 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 1.12.1

{
    "title": "Minecraft 1.12.1",
    "images": [
        "1.12.1update.png",
        "Java Edition 1.12.1.png"
    ],
    "rows": [
        {
            "field": "''(link to Java Edition article, displayed as Java Edition)''",
            "label": "(link to Edition article, displayed as Edition)"
        },
        {
            "field": "August 3, 2017",
            "label": "Release date"
        },
        {
            "field": "<div class=\"hlist\"><span to :Category:Java Edition 1.12.1 snapshots article, displayed as '''Snapshots''') (1) </span><br/><span to :Category:Java Edition 1.12.1 pre-releases article, displayed as '''Pre-releases''') (1) </span><br/>((link to Java Edition 1.12.1/Development versions article, displayed as View all))</div>",
            "label": "<span normal;\">Development versions</span>"
        },
        {
            "field": "[https://piston-data.mojang.com/v1/objects/83385d346cf7f97d1e447b888750fb88e9928b93/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/24b28f562e354309697a1c9d835dea55a185df1e/1.12.1.json .json])<br />[https://piston-data.mojang.com/v1/objects/561c7b2d54bae80cc06b05d950633a9ac95da816/server.jar Server]",
            "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
        },
        {
            "field": "338",
            "label": "(link to Protocol version article, displayed as Protocol version)"
        },
        {
            "field": "1241",
            "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 rowspan=\"2\" 0.4em\">'''1.12.1'''</td>\n<td 0.4em\" >[[Java Edition  1.13|  1.13 <span inherit;\">\n\n\n<td 0.4em\">\n[[Java Edition  1.12.2|  1.12.2 ►]]\n</td>\n</tr>\n</table>"
}

Other editions with a version "1.12.1":

1.12.1 is a minor update for Java Edition released on August 3, 2017, which fixes bugs.^[2] It is not compatible with 1.12 servers.

Changes

General

Game credits

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

Splashes

Removed "Better than Prey!"

Fixes

4 issues fixed

From released versions before 1.12

MC-86016 – Some Mojang staff not mentioned in credits.txt
MC-117087 – Class.getSimpleName performance issue with large number of block entities
MC-119840 – Diamonds get moved into crafting slots on any chat message

Private issues

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

Videos

Video made by slicedlime:

Trivia

This is the final version of the unsubtitled game as the next version succeeding it, 1.12.2-pre1, is subtitled Java Edition.
This version came exactly seven years after Alpha v1.0.15.

References

↑ "Important Message: Security vulnerability in Java Edition" – Minecraft.net, December 10, 2021.
↑ ^a ^b "Minecraft 1.12.1 Released" – Minecraft.net.