WorldVersionBackport
No reviews yet
A minecraft fabric mod that allows older minecraft versions (pre 26.2) to load newer worlds that have been '''''''''upgraded''''''' and deupgrade them
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
Community voices
Reviews
Click once to include, again to exclude, again to clear
No reviews yet. Be the first to review this project!
Get it on
Available Platforms
Modrinth
Compatibility
Supported Environments
About
Project Details
For authors
Embed Badge
If you're the author of this project, you can embed a live badge anywhere that supports HTML or Markdown. It updates automatically whenever ratings change.
Use HTML for any page that supports it, or Markdown for README files and Markdown-based descriptions.
Identifiers
Platform IDs
About
Description
THIS MOD IS IN ALPHA, I AM NOT RESPONSIBLE FOR YOUR CARELESSNESS, MAKE BACKUPS OF ANY WORLD YOU LOAD USING THIS MOD, CURRENTLY, IT DOES NOT FIX SERVERS
https://github.com/DefaultUser9148/worldversionbackport
https://modrinth.com/mod/worldversionbackport
!!! Make backups of any world before loading with this mod. Not responsible for data loss. Currently incompatible with servers. Why use new world folder when old one do trick?
A minecraft fabric mod to allow anyone playing older versions of minecraft (pre 26.2 which dont have Vulkan option) to load and play newer worlds which feature the Vulkan renderer in the video options. And also allows to deupgrade worlds, so you can then remove this mod
Optional: ModMenu
First made for 1.21.4, this version will get the most attention from me.
| MC Version | Support Status | Priority | Tested up to | End Of Life Status |
|---|---|---|---|---|
| 1.21.11 | Coming Soon | High | - | 1.21.5-1.21.10 | Supported | High | - | |
| 1.21.4 | Supported | Main Mod Version | 26.2-prerelease-2 | 1.21.3-1.21 | Coming Soon | Low | - |
Why?
Minecraft 26.2-snapshot-1 and i think any version after 26.2 (Which introduced the Vulkan renderer) made several changes to any world that was generated in a previous version because the world generation thing is hardcoded or something, but this 'Upgrading' that happens for older worlds almost COMPLETELY making ANY OTHER VERSION unable to load the world correctly or find any of the chunks/player files as it changes a lot of stuff, most notably the regions and playerdata, moving them into subfolders and making any old version regenerate all of the chunks in the root, and unable to find the playerdata.
Incompatibilities
| Mod | Issue | Last Checked |
|---|---|---|
| Rocks and Pebbles | Crashes when loading a 26.2 world due to new version-specific data | 9th April 2026 |
Screenshots
Gallery
-
before my mod -
after my mod cool mod -
Icon
Versions
Files
Relations
Project Relations
More like this
Similar Mods
Suggestions use data such as tags, dependencies, dependents, descriptions, titles, and more to rank how much they overlap with this mod.
On ModDex
Community snapshot
By the numbers
Statistics
Want to reach Minecraft players?
We're looking for a server hosting partner to feature here and other parts of the site. Interested? Send us a message!
Get in touchGet it on
Available Platforms
On ModDex
Community snapshot
By the numbers