How do I install Cancel Block Update?

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 Cancel Block Update work with?

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

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Cancel Block Update

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by phoupraw · on Modrinth

Cancel block updates, block schedule ticks, random ticks, place validation, fluid schedule ticks, for building and debug use.

Which Minecraft do you have?

Every version of the game needs its own build. Pick yours, then download — the wrong build installs fine and then does nothing in the game. This mod is built for Fabric only.

Minecraft 1.21–1.21.1Newest
Minecraft 1.19.3–1.20.1
Minecraft 1.19–1.19.2

⬇ Download for 1.21–1.21.1 ⬇ Download for 1.19.3–1.20.1 ⬇ Download for 1.19–1.19.2

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 →

MCMOD

[Warning] During world generation enable this mod might produce lots of floating blocks, if want to generate normal world, please change game rule in advance.

Cancel block update, block schedule tick, random tick and fluid schedule tick, allow unlimited place block.

For building special buildings, make and test special map.

Suggest with adapt block state debug stick to use.

Game Rules

cancelblockupdate:main
cancelblockupdate:no_block_update
cancelblockupdate:no_block_schedule
cancelblockupdate:no_fluid_schedule
cancelblockupdate:no_place_limit
cancelblockupdate:no_replace

Builtin Data Packs

cancelblockupdate:replaced

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 1.21.1
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.

File checked by MCModsHub

Ships as CancelBlockUpdate-1.21.1-2.0.0.jar — drop this file into the mods folder
Download size: 29 KB
Download link checked 11 Oct 2026 — working

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

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21