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modpack

Feather BoostMinecraft modpack for 1.21.11

This Modpack is boost your fps

client onlynewest supported release 1.21.11OptimizationCombatMultiplayer
Latest version
1.21.11
Minecraft
1.16.5 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
Apache-2.0
Downloads
42.7k
Updated
10 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Feather Boost servers

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

  • 1.21.11
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.1Fabric17+declared12 Jun 2023
1.19.2Fabric17+declared5 Aug 2022
1.18.2Fabric17+declared28 Feb 2022
1.17.1Fabric16+declared6 Jul 2021
1.16.5Fabric8+declared14 Jan 2021

Download

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

Most recently published release

1.21.11release3 Jan 2026

Feather Boost 1.21.11.mrpack · 9.2 MB · for 1.21.11 · Fabric

Download this release
535f4ea49e51…
Older versions13
  • 1.21.103 Jan 20261.21.109.2 MB1.9k downloads62d26b15b2dc…Get
  • 1.21.818 Oct 20251.21.834.5 MB1.4k downloadsd32966b78e0f…Get
  • 1.21.93 Oct 20251.21.92 KB1.4k downloadsbf69e68736e8…Get
  • 1.21.625 Sept 20251.21.635 KB871 downloadsf405606176e1…Get
  • 1.21.425 Sept 20251.21.435 KB4.2k downloads22d61fdf9760…Get
  • 1.21.125 Sept 20251.21.135 KB4.6k downloadse31c7d1e2c42…Get
  • 1.20.625 Sept 20251.20.635 KB315 downloads95c3f0abd2af…Get
  • 1.20.425 Sept 20251.20.435 KB534 downloadsc62902dd2ea8…Get
  • 1.20.125 Sept 20251.20.135 KB1.6k downloadsb036f2374094…Get
  • 1.19.224 Sept 20251.19.235 KB368 downloads25dd306f310a…Get
  • 1.18.224 Sept 20251.18.235 KB456 downloads1d7631f5905f…Get
  • 1.17.124 Sept 20251.17.135 KB481 downloads74a61104b617…Get
  • 1.16.524 Sept 20251.16.535 KB1.5k downloadsb7554af7d049…Get

Frequently asked

Does Feather Boost work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Feather Boost 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 Feather Boost support?

Everything the author has declared, from 1.16.5 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Feather Boost on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Feather Boost support?

Fabric. 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 Feather Boost?

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 Feather Boost under?

Apache-2.0, 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 Feather Boost?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Feather Boost 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 3 Jan 2026. 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? .