1.21.4 BackPort
This is a 1.21.4 back port that’s only works for 1.21.1 and 1.20.1
Screenshots
About this Mod
1.21.4 BackPort
What is a BackPort?
A backport lets you play with diffrent blocks that you cant have acsess to. For exaple i play on 1.20.1 and I want the newer things in the world. I will be able to have the newer blocks.
What is In This Backport?
- Pale Wood ✅
- Pale Moss ✅
- Resin Brick and Varinets ✅
- Pale Trees ✅
- Pale Biome ❌
- Creeking ❌
Available Versions
How to Install 1.21.4 BackPort on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 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 "1.21.4 BackPort". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
1.21.4 BackPort 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 4 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 1.21.4 BackPort compatible with fabric and forge and neoforge?
1.21.4 BackPort officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with 1.21.4 BackPort – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if 1.21.4 BackPort 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.
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Rent Modded Server
Install 1.21.4 BackPort with just one click on your server.