How do I install MapBoost?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does MapBoost work with?

The listing gives Minecraft 1.21, 1.21.1, 1.21.2, among others. This is the version stated by the author or source site, not something we verified ourselves.

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MapBoost

by mccmcaozr · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric1 build
Mod loader Forge1 build
Mod loader NeoForge1 build

Minecraft version

Minecraft 1.21.3–26.2Newest

Minecraft 1.21.3–26.2Newest

Minecraft 1.21.2–26.2Newest

⬇ Download for 1.21.3–26.2 · Fabric ⬇ Download for 1.21.3–26.2 · Forge ⬇ Download for 1.21.2–26.2 · NeoForge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

MapBoost

Map update frequency optimization mod — Fabric / NeoForge / Forge

Basic Info

Property	Value
Mod ID	`mapboost`
Version	1.0.0
Author	mccmcaozr
License	All Rights Reserved (closed source)
Environment	Server (client optional)
Minecraft	>=1.21 (1.21 ~ 1.21.11, 26.1 ~ 26.2)
Java	21+

Loader Support

Loader	Minimum Version	JAR Filename
Fabric	Loader 0.15.0 + Fabric API	`mapboost-fabric-1.0.0.jar`
NeoForge	21.1.236	`mapboost-neoforge-1.0.0.jar`
Forge	52.1.15	`mapboost-forge-1.0.0.jar`

Compatibility

Recommended: Sodium, Lithium
Optional: Iris, Xaero's Minimap, Xaero's World Map

Overview

MapBoost applies dynamic throttling to MapState.update (Mojang: MapItemSavedData.tickCarriedBy): refreshes more frequently when the player is moving, and reduces frequency when stationary.

Core Features

MapUpdateScheduler with per-map independent intervals
Player position-aware interval adjustment
Globally unique mapId + cross-Mixin duck typing (MapStateIdAccess)
Expired map cleanup
Player disconnect cleanup
Does not erroneously reset update timer during flush

Cross-Loader Mapping Differences

Fabric (Yarn)	NeoForge/Forge (Mojang)
`MapState`	`MapItemSavedData`
`FilledMapItem`	`MapItem`
`MapState.update`	`MapItemSavedData.tickCarriedBy`
`MapState.putColor`	`MapItemSavedData.setColor`
`FilledMapItem.getMapState`	`MapItem.getSavedData`
`World`	`Level`
`PlayerEntity`	`Player`
`BlockPos`	`BlockPos` (unchanged)

Installation

Install the corresponding loader (Fabric / NeoForge / Forge)
For Fabric, also install Fabric API
Place the JAR file for your loader into the mods folder

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 1.21.1, 1.21.2
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as mapboost-neoforge-1.0.0.jar — drop this file into the mods folder
Download size: 661 KB
Download link checked 20 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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