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modpack

Feather BoostMinecraft modpack for 1.21.11

This Modpack is boost your fps

client onlynewest supported 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
8 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.

1.21.11release3 Jan 2026

Feather Boost 1.21.11.mrpack · 9.2 MB · for 1.21.11

Download latest
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 20251.21.90.0 MB1.4k downloadsbf69e68736e8…Get
  • 1.21.625 Sept 20251.21.60.0 MB871 downloadsf405606176e1…Get
  • 1.21.425 Sept 20251.21.40.0 MB4.2k downloads22d61fdf9760…Get
  • 1.21.125 Sept 20251.21.10.0 MB4.6k downloadse31c7d1e2c42…Get
  • 1.20.625 Sept 20251.20.60.0 MB315 downloads95c3f0abd2af…Get
  • 1.20.425 Sept 20251.20.40.0 MB534 downloadsc62902dd2ea8…Get
  • 1.20.125 Sept 20251.20.10.0 MB1.6k downloadsb036f2374094…Get
  • 1.19.224 Sept 20251.19.20.0 MB368 downloads25dd306f310a…Get
  • 1.18.224 Sept 20251.18.20.0 MB456 downloads1d7631f5905f…Get
  • 1.17.124 Sept 20251.17.10.0 MB481 downloads74a61104b617…Get
  • 1.16.524 Sept 20251.16.50.0 MB1.5k 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 loader does Feather Boost need?

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

Which Java version do I need for Feather Boost?

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

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?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

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Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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