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modpack

Haider OptimizedMinecraft modpack for 1.21.11

One of The Best optimization modpack for Minecraft designed to enhance performance and improve gameplay experience.

client onlynewest supported 1.21.11OptimizationCombatLightweightMultiplayer
Latest version
1.21
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
110
Updated
5 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 Haider Optimized 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
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

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

1.21release10 May 2026

Haider Optimized 1.21.mrpack · 19 KB · for 1.21

Download latest
a942e11f6f7e…
Older versions9
  • 1.21.110 May 20261.21.120 KB8 downloadsc5a34390106c…Get
  • 2.0.310 May 20261.21.545 KB6 downloads21a30c9c5ca7…Get
  • 1.21.410 May 20261.21.420 KB14 downloads896aa6337645…Get
  • 1.21.610 May 20261.21.646 KB8 downloads0b0a90cce581…Get
  • 1.21.710 May 20261.21.732 KB6 downloads3e925ea09e19…Get
  • 1.21.810 May 20261.21.846 KB6 downloadsb30a671b91d3…Get
  • 1.21.910 May 20261.21.946 KB6 downloadsf4ba9edf5ae9…Get
  • 1.21.1010 May 20261.21.1046 KB7 downloads4637669a08fc…Get
  • 1.21.1110 May 20261.21.1149 KB23 downloads66d11c8c438e…Get

Frequently asked

Does Haider Optimized work on Minecraft 1.21.11?

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

Everything the author has declared, from 1.21 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 Haider 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 Haider Optimized 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 Haider Optimized?

On the newest Minecraft version 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 Haider Optimized 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 Haider 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 Haider 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. 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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Details from Modrinth, where the author last updated it on 10 May 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Not indexed yet. Score 51 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

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