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InfrastructuryMinecraft mod for 1.21.11

Cross-version modding API

newest supported release 1.21.11Library
Latest version
0.3.1-mc1.21.3
Minecraft
1.16.4 to 1.21.11
Java
Java 21+
Loaders
Fabric, Quilt, NeoForge, Forge
Licence
LGPL-3.0-only
Downloads
2.8k
Updated
9 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Infrastructury servers

One click and Infrastructury is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Fabric
  • Quilt
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric, Quilt, NeoForge, Forge21+declared9 Dec 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, Quilt, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, Quilt, NeoForge, Fabric21+declared22 Oct 2024
1.21.1Forge, Quilt, NeoForge, Fabric21+declared8 Aug 2024
1.21Forge, Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.6Forge, Quilt, NeoForge, Fabric21+declared29 Apr 2024
1.20.5Forge, Quilt, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Forge, Quilt, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Fabric, Forge, NeoForge, Quilt17+declared4 Dec 2023
1.20.2Fabric, Quilt, NeoForge, Forge17+declared20 Sept 2023
1.20.1Forge, Quilt, NeoForge, Fabric17+declared12 Jun 2023
1.20Forge, Quilt, NeoForge, Fabric17+declared2 Jun 2023
1.19.4Forge, Quilt, NeoForge, Fabric17+declared14 Mar 2023
1.19.2Fabric, Quilt, NeoForge, Forge17+declared5 Aug 2022
1.18.2Fabric, Quilt, NeoForge, Forge17+declared28 Feb 2022
1.17.1Forge, Quilt, NeoForge, Fabric16+declared6 Jul 2021
1.17Forge, Quilt, NeoForge, Fabric16+declared8 Jun 2021
1.16.5Forge, Quilt, NeoForge, Fabric8+declared14 Jan 2021
1.16.4Quilt, Forge, NeoForge, Fabric8+declared29 Oct 2020

Download

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

Browse 47 indexed releases

For Minecraft 1.21.11

Choose the loader you use before downloading.

  • NeoForge

    0.3.1-mc1.21.11 · 29 Dec 2025 · infrastructury-tiny-neoforge-0.3.1-mc1.21.11.jar

    Get NeoForge

  • Fabric, NeoForge

    0.2.7-mc1.21.11 · 25 Dec 2025

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

Most recently published release

0.3.1-mc1.21.3release29 Dec 2025

infrastructury-tiny-neoforge-0.3.1-mc1.21.3.jar · 13 KB · for 1.21.3, 1.21.2 · NeoForge

Download this release
5b03cc010c1f…
Older versions24

Frequently asked

Does Infrastructury work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Infrastructury 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 Infrastructury support?

Everything the author has declared, from 1.16.4 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 Infrastructury 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 Infrastructury?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Infrastructury under?

LGPL-3.0-only, 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 Infrastructury?

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 Infrastructury 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available 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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Details from Modrinth, where the author last updated it on 29 Dec 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .