mod

UnionLibMinecraft mod for 1.21.11

A library mod for all my mods

newest supported 1.21.11Library

Latest version: 1.21.11-12.2-NeoForge
Minecraft: 1.16.1 to 1.21.11
Java: Java 21+
Loaders: Fabric, Quilt, NeoForge, Forge
Licence: LicenseRef-All-Rights-Reserved
Downloads: 760.6k
Updated: 10 d ago
Available on: Modrinth

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1.21.11
Fabric
Quilt
NeoForge
Forge

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Minecraft versions

Every version UnionLib declares support for, newest first, with the Java runtime that version needs.

Other mods

Minecraft	Through	Java	Evidence	Released
1.21.11	Fabric, Quilt, NeoForge, Forge	21+	declared	9 Dec 2025
1.21.10	Forge, Quilt, NeoForge, Fabric	21+	declared	7 Oct 2025
1.21.1	Forge, Quilt, NeoForge, Fabric	21+	declared	8 Aug 2024
1.21	Forge, Quilt, NeoForge, Fabric	21+	declared	13 Jun 2024
1.20.6	Forge, Quilt, NeoForge, Fabric	21+	declared	29 Apr 2024
1.20.1	Forge, Quilt, NeoForge, Fabric	17+	declared	12 Jun 2023
1.20	Fabric, Forge, NeoForge, Quilt	17+	declared	2 Jun 2023
1.19.4	Fabric, Quilt, NeoForge, Forge	17+	declared	14 Mar 2023
1.19.3	Forge, Quilt, NeoForge, Fabric	17+	declared	7 Dec 2022
1.19.2	Forge, Quilt, NeoForge, Fabric	17+	declared	5 Aug 2022
1.19.1	NeoForge, Quilt, Forge, Fabric	17+	declared	27 Jul 2022
1.19	Fabric, Quilt, NeoForge, Forge	17+	declared	7 Jun 2022
1.18.2	Forge, Quilt, NeoForge, Fabric	17+	declared	28 Feb 2022
1.16.1	NeoForge, Forge, Fabric, Quilt	8+	declared	24 Jun 2020

Download

From UnionLib’s own host. Nothing is re-hosted here.

All 55 releases

1.21.11-12.2-NeoForgebeta4 Jan 2026

UnionLib-1.21.11-12.2-NeoForge-all.jar · 0.7 MB · for 1.21, 1.21.11

Download latest

e8cb71871905…

Older versions24

1.21.10-12.2-NeoForge1 Jan 20261.21, 1.21.100.7 MB172 downloadse06ff3df94a6…Get
1.21.11-12.2-Fabric1 Jan 20261.21, 1.21.111.2 MB5.3k downloadsbf287bff032c…Get
1.21.1-12.2-NeoForge1 Jan 20261.21, 1.21.10.7 MB14.7k downloadse5a0dd4aebdc…Get
1.21.1-12.2-Forge1 Jan 20261.21, 1.21.11.2 MB3.2k downloadsded2e75fde86…Get
1.21.1-12.2-Fabric1 Jan 20261.21, 1.21.11.2 MB19.4k downloads07482c9781f1…Get
1.20.6-12.2-NeoForge1 Jan 20261.20.60.7 MB102 downloadsd48eaf6870b4…Get
1.20.6-12.2-Forge1 Jan 20261.20.61.2 MB150 downloads97196c5b2283…Get
1.20.6-12.2-Fabric1 Jan 20261.20.61.2 MB67 downloads153c7aef8497…Get
1.20.1-12.2-Forge1 Jan 20261.20.11.0 MB41.3k downloads66818c2652a3…Get
1.20.1-12.2-Fabric1 Jan 20261.20.11.2 MB7.3k downloads5b4382b953f9…Get
1.21.1-12.1.1-NeoForge30 Oct 20251.21, 1.21.10.7 MB8.2k downloads1c2cbb1d09ee…Get
1.21.1-12.1.1-Forge30 Oct 20251.21, 1.21.11.2 MB125 downloadse33ff7e32d10…Get
1.21.1-12.1.1-Fabric30 Oct 20251.21, 1.21.11.2 MB8.8k downloadsc5ce6a7ca9df…Get
1.20.6-12.1.1-NeoForge30 Oct 20251.20.60.7 MB132 downloads5aa06275607c…Get
1.20.6-12.1.1-Forge30 Oct 20251.20.61.2 MB97 downloads5b21034abbde…Get
1.20.6-12.1.1-Fabric30 Oct 20251.20.61.2 MB77 downloadsed674bd268b6…Get
1.20.1-12.1.1-Forge30 Oct 20251.20.11.0 MB33.1k downloadsf77b4f14a073…Get
1.20.1-12.1.1-Fabric30 Oct 20251.20.11.2 MB3.6k downloadse072e1e4d1d7…Get
1.21.1-12.1.0-NeoForge16 Oct 20251.21, 1.21.10.7 MB5.0k downloadsb5cd03c67390…Get
1.21.1-12.1.0-Forge16 Oct 20251.21, 1.21.11.2 MB563 downloads560bbad71333…Get
1.21.1-12.1.0-Fabric16 Oct 20251.21, 1.21.11.2 MB1.6k downloads221f71d0ce42…Get
1.20.6-12.1.0-NeoForge16 Oct 20251.20.60.7 MB82 downloads7b0ba9383009…Get
1.20.6-12.1.0-Forge16 Oct 20251.20.61.2 MB57 downloads8f0d0b4eee33…Get
1.20.6-12.1.0-Fabric16 Oct 20251.20.61.2 MB42 downloads4c5d334a5e52…Get

Frequently asked

Does UnionLib work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version UnionLib declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does UnionLib support?

Everything the author has declared, from 1.16.1 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does UnionLib support?

Fabric, Quilt, NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for UnionLib?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is UnionLib under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install UnionLib?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download UnionLib safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Is this information wrong or missing something? .