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modpack

Xavier OptimizedMinecraft modpack for 1.21.11

A modpack contains mods that improve and optimize the vanilla game experience without changing the game's mechanism.

client onlynewest supported release 1.21.11OptimizationLightweightMultiplayer
Latest version
v1.0.0-fabric-mc1.21.11
Minecraft
1.7.10 to 1.21.11
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
BSD-3-Clause
Downloads
26.7k
Updated
8 mo ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11NeoForge, Forge, Fabric21+declared9 Dec 2025
1.21.10Fabric, NeoForge, Forge21+declared7 Oct 2025
1.21.9Forge, NeoForge, Fabric21+declared30 Sept 2025
1.21.9-pre2Forge, NeoForge, Fabric21+declared19 Sept 2025
1.21.8Forge, NeoForge, Fabric21+declared17 Jul 2025
1.21.7NeoForge, Forge, Fabric21+declared30 Jun 2025
1.21.6NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5Fabric, NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, NeoForge, Fabric21+declared23 Oct 2024
1.21.2NeoForge, Fabric, Forge21+declared22 Oct 2024
1.21.1Forge, Fabric, NeoForge21+declared8 Aug 2024
1.21NeoForge, Forge, Fabric21+declared13 Jun 2024
1.20.6Fabric, NeoForge, Forge21+declared29 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.18.2Forge, NeoForge, Fabric17+declared28 Feb 2022
1.17.1Forge, NeoForge, Fabric16+declared6 Jul 2021
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021
1.12.2Forge, NeoForge, Fabric8+declared18 Sept 2017
1.8.9Forge, NeoForge, Fabric8+declared3 Dec 2015
1.7.10Forge, NeoForge, Fabric8+declared14 May 2014

Download

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

Browse 60 indexed releases

Most recently published release

v1.0.0-fabric-mc1.21.11release22 Feb 2026

Xavier Optimized 1.21.11 (Fabric) 1.0.0.mrpack · 0.2 MB · for 1.21.11 · Fabric

Download this release
1d80b37bfedf…
Older versions24
  • v1.0.23 Dec 20251.21.1029 KB978 downloadsd8eae07e622f…Get
  • v1.0.1-neoforge-mc1.21.1029 Oct 20251.21.1027 KB332 downloads79c5a21950d8…Get
  • v1.0.2-neoforge-mc1.21.929 Oct 20251.21.930 KB86 downloads68193315cbb8…Get
  • v1.0.1-fabric-mc1.21.1029 Oct 20251.21.100.2 MB1.1k downloadsa8d156595482…Get
  • v1.0.4-fabric-mc1.21.929 Oct 20251.21.90.2 MB167 downloadsb52235abb551…Get
  • v1.0.0-neoforge-mc1.21.1011 Oct 20251.21.1025 KB292 downloads0e186f797088…Get
  • v1.0.1-neoforge-mc1.21.911 Oct 20251.21.925 KB73 downloads94ca99fbc5e1…Get
  • v1.0.0-fabric-mc1.21.1010 Oct 20251.21.100.2 MB507 downloadsf9efb8c59f41…Get
  • v1.0.3-fabric-mc1.21.910 Oct 20251.21.90.2 MB117 downloads1262cc8fc757…Get
  • v1.0.2-fabric-mc1.21.93 Oct 20251.21.90.6 MB340 downloads5ac1d04f79ca…Get
  • v1.0.0-neoforge-mc1.21.91 Oct 20251.21.933 KB206 downloads0f3335ac59cf…Get
  • v1.0.1-fabric-mc1.21.91 Oct 20251.21.91.5 MB175 downloads95fbaf846f9f…Get
  • v1.0.3-fabric-mc1.21.726 Sept 20251.21.758 KB168 downloads52f143fb4a7f…Get
  • v1.0.5-fabric-mc1.21.826 Sept 20251.21.860 KB1.2k downloadsb60fa71f93e8…Get
  • v1.0.3-fabric-mc1.21.626 Sept 20251.21.658 KB194 downloads5ce83c3ed920…Get
  • v1.0.3-fabric-mc1.21.526 Sept 20251.21.558 KB280 downloads2a6844408948…Get
  • v1.0.3-fabric-mc1.21.426 Sept 20251.21.357 KB122 downloadsae26f31a23e9…Get
  • v1.0.3-fabric-mc1.21.326 Sept 20251.21.357 KB39 downloadsae26f31a23e9…Get
  • v1.0.1-fabric-mc1.21.226 Sept 20251.21.232 KB94 downloadscce03e4e7206…Get
  • v1.0.3-fabric-mc1.21.126 Sept 20251.21.159 KB1.5k downloadsbf5291ad48e9…Get
  • v1.0.3-fabric-mc1.2126 Sept 20251.2157 KB391 downloadsa2a91b816482…Get
  • v1.0.2-fabric-mc1.20.626 Sept 20251.20.665 KB170 downloads3e069a310526…Get
  • v1.0.2-fabric-mc1.20.226 Sept 20251.20.443 KB348 downloadsda8e1d98b18c…Get
  • v1.0.3-fabric-mc1.20.126 Sept 20251.20.153 KB2.9k downloads847528627d6d…Get

Frequently asked

Does Xavier Optimized work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Xavier Optimized 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 Xavier Optimized support?

Everything the author has declared, from 1.7.10 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 Xavier Optimized 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 Xavier Optimized support?

NeoForge, Forge, 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 Xavier Optimized?

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 Xavier Optimized under?

BSD-3-Clause, 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 Xavier Optimized?

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 Xavier Optimized 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobsElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔fps+pvpFPS + PvP Boost is a lightweight Minecraft modpack designed to maximize performance and give players a competitive edge in PvP. With FPS-boosting optimizations and combat-focused tweaks, it delivers smoother gameplay, better responsiveness, and enhanced vi

Details from Modrinth, where the author last updated it on 22 Feb 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? .