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APTweaks: Core (11.x Classic)Minecraft mod for 1.21.1

The core is required for all adaptive performance tweaks modules and provides a shared API, monitoring functionally, events and commands.

newest supported release 1.21.1Utility QolServer Utility
Latest version
adaptive_performance_tweaks_core_1.21.1-11.6.1.jar
Minecraft
1.18.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
12.8M
Updated
5 mo ago
Available on
CurseForge

Screenshots

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

Minecraft versions

Every version APTweaks: Core (11.x Classic) declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.3Forge, NeoForge17+declared4 Dec 2023
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.20NeoForge, Forge17+declared2 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3Forge, NeoForge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19Forge, NeoForge17+declared7 Jun 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1Forge, NeoForge17+declared10 Dec 2021

Download

From APTweaks: Core (11.x Classic)’s own host. Nothing is re-hosted here.

Browse 40 indexed releases

Most recently published release

adaptive_performance_tweaks_core_1.21.1-11.6.1.jarrelease10 Mar 2026

adaptive_performance_tweaks_core_1.21.1-11.6.1.jar · 0.1 MB · for 1.21.1 · Forge

Download this release
1fa50ed50ccb…
Older versions24
  • adaptive_performance_tweaks_core_1.20.1-11.6.1.jar10 Mar 20261.20.10.1 MBbc3d9c053770…Choose file on publisher ↗
  • adaptive_performance_tweaks_core_1.19.2-11.6.1.jar10 Mar 20261.19.20.1 MB8dc5042193de…Get
  • adaptive_performance_tweaks_core_1.18.2-11.6.1.jar9 Mar 20261.18.20.1 MB94b4e1455f8a…Get
  • adaptive_performance_tweaks_core_1.21.1-11.6.0.jar3 Mar 20261.21.10.1 MB55 downloads86dbe769da0b…Get
  • adaptive_performance_tweaks_core_1.20.1-11.6.0.jar2 Mar 20261.20.10.1 MB75f276c6d786…Choose file on publisher ↗
  • adaptive_performance_tweaks_core_1.19.2-11.6.0.jar2 Mar 20261.19.20.1 MBd5b1a1e8311c…Get
  • adaptive_performance_tweaks_core_1.18.2-11.6.0.jar2 Mar 20261.18.20.1 MBdb60f994224d…Get
  • adaptive_performance_tweaks_core_1.21.1-11.5.0.jar28 Aug 20251.21.10.1 MB261ffc387a2a…Get
  • adaptive_performance_tweaks_core_1.20.1-11.5.0.jar28 Aug 20251.20.10.1 MBeec168ef1210…Choose file on publisher ↗
  • adaptive_performance_tweaks_core_1.19.2-11.5.0.jar28 Aug 20251.19.20.1 MBe97f856ab9b6…Get
  • adaptive_performance_tweaks_core_1.18.2-11.5.0.jar28 Aug 20251.18.20.1 MBa4dc8635a74a…Get
  • adaptive_performance_tweaks_core_1.21.1-11.4.0.jar27 Aug 20251.21.10.1 MBb067c3b7c342…Get
  • adaptive_performance_tweaks_core_1.20.1-11.4.0.jar27 Aug 20251.20.10.1 MBb184d85bddd8…Choose file on publisher ↗
  • adaptive_performance_tweaks_core_1.19.2-11.4.0.jar27 Aug 20251.19.20.1 MB3dbd6d71110e…Get
  • adaptive_performance_tweaks_core_1.18.2-11.4.0.jar27 Aug 20251.18.20.1 MB7d834071df85…Get
  • adaptive_performance_tweaks_core_1.21.1-11.3.0.jar15 Oct 20241.21.10.1 MB2.2k downloads916c6fc874ad…Get
  • adaptive_performance_tweaks_core_1.20.1-11.3.0.jar15 Oct 20241.20.10.1 MB1.5M downloadsb707e33365b1…Choose file on publisher ↗
  • adaptive_performance_tweaks_core_1.19.2-11.3.0.jar15 Oct 20241.19.20.1 MB31.0k downloads30a1565eec9f…Get
  • adaptive_performance_tweaks_core_1.18.2-11.3.0.jar15 Oct 20241.18.20.1 MB16.1k downloadse61fca462850…Get
  • adaptive_performance_tweaks_core_1.21.1-11.2.0.jar7 Oct 20241.21.10.1 MB240 downloadsee737f186d26…Get
  • adaptive_performance_tweaks_core_1.21-11.2.0.jar7 Oct 20241.210.1 MB740 downloadsad647b65160f…Get
  • adaptive_performance_tweaks_core_1.20.6-11.2.0.jar7 Oct 20241.20.60.1 MB343 downloadsacb63f534d41…Get
  • adaptive_performance_tweaks_core_1.20.4-11.2.0.jar7 Oct 20241.20.40.1 MB448 downloadsd888b65f046d…Get
  • adaptive_performance_tweaks_core_1.20.1-11.2.0.jar7 Oct 20241.20.10.1 MB25.1k downloads54ce8e433758…Choose file on publisher ↗

Frequently asked

Does APTweaks: Core (11.x Classic) work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version APTweaks: Core (11.x Classic) 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 APTweaks: Core (11.x Classic) support?

Everything the author has declared, from 1.18.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does APTweaks: Core (11.x Classic) support?

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 APTweaks: Core (11.x Classic)?

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.

How do I install APTweaks: Core (11.x Classic)?

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 APTweaks: Core (11.x Classic) safely?

Start with the author's page on CurseForge, 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 CurseForge, where the author last updated it on 31 May 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? .