Cancel Block Update

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

2.1K Downloads

fabricdecoration

Rent Server with this Mod

Screenshots

About this Mod

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

Available Versions

Cancel Block Update 2.0.0release

MC 1.21, 1.21.1fabric

July 5, 2025

1.19.2-1.1.2release

MC 1.19, 1.19.1, 1.19.2fabric

July 2, 2023

1.20.1-1.1.2release

MC 1.19.3, 1.19.4, 1.20, 1.20.1fabric

July 2, 2023

1.1.1release

MC 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1fabric

July 2, 2023

1.1.0release

MC 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1fabric

June 30, 2023

How to Install Cancel Block Update on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Cancel Block Update". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1, 1.21, 1.20.1 (+6 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Cancel Block Update server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Cancel Block Update compatible with fabric?

Cancel Block Update officially supports fabric for Minecraft 1.21.1, 1.21, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Cancel Block Update – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cancel Block Update consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.