Modscraper Modscraper Minecraft
ModernFix-mVUS logo

ModernFix-mVUS

Mod

by Coredex

A fork of ModernFix that adds minor version update support.

Type

Mod

CurseForge Downloads

2,193,554

CurseForge ID

1367508

Modrinth Downloads

11,496,024

Modrinth ID

TjSm1wrD

Last Updated

Nov 7, 2026

Description

Replace this with a description Replace this with a description Replace this with a description Replace this with a description

ModernFix-mVUS is a fork of ModernFix that will release Modernfix versions for any version that is not supported by the official mod. When the official mod updates to a specific minecraft version this fork will skip releasing that version.

Original ModernFix will no longer release Fabric builds so mVUS will only support Fabric for versions that get a NeoForge release on the original mod page.

The donation and server host links still point to the official creator's pages.

ModernFix is an all-in-one mod that improves performance, reduces memory usage, and fixes many bugs in modern Minecraft versions (most versions including and above 1.16 are supported) without majorly compromising the game experience. Most Forge 1.16-1.19.2 modpacks will launch roughly twice as fast with ModernFix installed. If some non-default options are enabled, it can even allow large modpacks like All The Mods 8 to run with 3GB or less of allocated memory.

ModernFix is free, open-source software. All of the code is available on the GitHub repository.

⚙️ Technical summary

What exactly does ModernFix do for your game? There are a lot of tweaks being made - too many to summarize here. However, here is a brief summary of the general types of improvements being made:

Backports of bugfixes from newer versions of Minecraft and/or Forge, e.g. fixing worlds breaking when you remove a dimension mod in 1.18. Patches to mods that are no longer supported on a given Minecraft version, to improve the gameplay experience instead of requiring players to update. Many optimizations & improvements to the game's launch process to significantly improve speed and reduce random concurrency crashes. Additional debug tools to help modders and players determine the cause of some rare game crashes/freezes, instead of relying on a painful mod bisection process. It's not enabled by default due to compatibility issues, but ModernFix includes functionality to completely redesign the game's model loading system, replacing it with a new, dynamic version that loads models on the fly. Model loading is one of the major performance regressions to modded Minecraft that has been present since 1.8, and this new system alleviates nearly all of the downsides, bringing memory usage and loading times more in line with how they were in 1.7.10. Need to play the vanilla game with very little RAM allocated (e.g. 512MB or less)? Now you can do that. Head to the "Ultra-Low Memory Footprint" page on the wiki.

If you are technically savvy and looking for more details on each patch, I recommend reading the Summary of Patches wiki page.

🐛 Where to go when something doesn't work

Please report an issue on GitHub. Be sure to mention the Minecraft version, modloader, and ModernFix version you are using, as well as what other mods you have installed.

🎁 How can I support this project?

There are two main ways you can help support the development of ModernFix:

Spread the word! Test ModernFix in modpacks and encourage them to include it. If you feel generous, I do accept donations via Ko-fi. Donating is not required (as ModernFix is free), but every little bit helps. I work on ModernFix in my spare time, so any compensation I receive helps to sustain development. ❓ What other mods should I use?

There are many performance mods available for Minecraft and I can't list them all here, but here are some essential mods, in my opinion:

On any version before 1.19.4 you should always have LazyDFU installed, as it eliminates the incredible lag caused by the DFU system. On any version before 1.20 you should generally use Starlight unless it has a compatibility issue with your mods (which is quite rare). It offers vastly improved lighting performance and can also fix FPS stutters when moving between chunks. Always have FerriteCore installed, as Mojang's implementation of blockstates/models is laughably inefficient, and quickly consumes RAM as soon as more content is added beyond what vanilla offers. Install a mod like Shutup Experimental settings (before 1.19) or Yeetus Experimentus (1.19+). These mods will suppress the pop-up screen about experimental game features, which otherwise causes the game to reload its resources twice.

On a related note: I do not recommend use of OptiFine in any modded scenario. It is closed-source, patches the game in a way that easily breaks Forge and other mods, and significantly slows down game launching, often on the order of minutes. Please consider using Sodium (on Fabric) or Embeddium (on Forge) instead. Using OptiFine with ModernFix is not officially supported, and may cause issues.

Need a Minecraft server? Consider CreeperHost!

Replace this with a description

Compatibility

Mod Loaders

Fabric Neoforge

Game Versions

1.21.10 1.21.11 1.21.5 1.21.6 1.21.7 1.21.8 1.21.9 26.1 26.1-pre-1 26.1-pre-2 +18 more

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

As an Amazon Associate I earn from qualifying purchases.

Similar Mods

Included in Modpacks (683)

Show fewer
Server-Modpack-Pvp Server-Modpack-Pvp Saphyre MC Saphyre MC Endo Vanilla Endo Vanilla Sorbet Sorbet OptimizedPVP+ OptimizedPVP+ Perfect Java Perfect Java PurpleSMP PurpleSMP VortexCraft VortexCraft DDR6 (Best Performance Modpack) DDR6 (Best Performance Modpack) Netherite-Client Netherite-Client Potainium Optimized Potainium Optimized Redmium Redmium Minecraft: Promo Edition Minecraft: Promo Edition True Performance True Performance Simply Optimized ReForked Simply Optimized ReForked Jotunheimr Jotunheimr Survival singleplayer/multiplayer Survival singleplayer/multiplayer MiraOptimizer✨VULKAN MiraOptimizer✨VULKAN foxward-lite foxward-lite More Vulkan More Vulkan SkyBloke SkyBloke MrOptituber MrOptituber ClearTick ClearTick Iourus RPG Iourus RPG Slightly Vanilla Slightly Vanilla MacCraft MacCraft Modded Bridge Modded Bridge Mutzman's Modpack Mutzman's Modpack The Frame Machine The Frame Machine Remboy perfect Remboy perfect Faithfully optimized Faithfully optimized Pvp Optimized Pack Pvp Optimized Pack VulkanizedPVP VulkanizedPVP Skyblock Ascended Skyblock Ascended THE OPTIMIZER THE OPTIMIZER Craft Attack 14 Pack Craft Attack 14 Pack NeoScaled NeoScaled Piekarnia Modpack Piekarnia Modpack WrightCraft WrightCraft Vulkan Vitalised Vulkan Vitalised UNIPACK UNIPACK Roimy Zomsa’s Lightweight Mods Roimy Zomsa’s Lightweight Mods Sublime Experience Sublime Experience Better, Faster, Fancier Better, Faster, Fancier Beyond Optimized Beyond Optimized Telium Telium SEAF MC Modpack SEAF MC Modpack KnopiaPack KnopiaPack RС QoL RС QoL Candyy Candyy Jannes Modpack Jannes Modpack WynnCat WynnCat Almost Pure Vanilla Almost Pure Vanilla vilmiComfort vilmiComfort Reoxx Optimized Reoxx Optimized The Ultimate Vanilla Experience The Ultimate Vanilla Experience Game Speed Optimized Game Speed Optimized BULA SMP BULA SMP Golden Hearth Golden Hearth minehak&krutosh2's Pompous PepeLand Playground minehak&krutosh2's Pompous PepeLand Playground Renice Cubed Renice Cubed The True Vanilla The True Vanilla Perfect Donuts Perfect Donuts Mire 2077 Mire 2077 Saturn (Vanilla Enhanced) Saturn (Vanilla Enhanced) EdonMe Survival EdonMe Survival Simply Optimized 2 Simply Optimized 2 Tuned Tuned Fedorista's Modpack Fedorista's Modpack Opal Opal KillFPS+ KillFPS+ NasheyPvP NasheyPvP Vanilla Revamped Vanilla Revamped Semarina Semarina Medieval Fantasy For A Reason Medieval Fantasy For A Reason Onyx Onyx MineCrew-Extra MineCrew-Extra Tekwiz Tekwiz Renderium Optimized Renderium Optimized Simply Optimized Rebirth Simply Optimized Rebirth Creative FPS+ Creative FPS+ OptiCore OptiCore visually perfected visually perfected Bambam Modpack Bambam Modpack LessGrind+ LessGrind+ Sestain's Optimizations Sestain's Optimizations Just QoL Just QoL A Simple Efficient & Optimized Lite (ASEO Lite) A Simple Efficient & Optimized Lite (ASEO Lite) Yet Another Vanilla But Better (YAVBB) Yet Another Vanilla But Better (YAVBB) Lumora Lumora Redefined Vanilla - IdN Redefined Vanilla - IdN Visual Journey Visual Journey Immersive Beauty Immersive Beauty Crafted Plus Crafted Plus RMC Optimization RMC Optimization BetterVanilla SMP ModPack BetterVanilla SMP ModPack OPdium OPdium Shades 'n' Shine Shades 'n' Shine Quant Quant PI Craft PI Craft

External Resources