Dimension Update Fixer
by Kneelawk
Dimension Update Fixer, a Fabric utility, repairs worlds whose dimensions were changed between Minecraft versions.
What it does
The fixer targets a specific problem: a world loaded without its dimensions being upgraded between game versions, which breaks worlds that use dimension mods. Removing a dimension's world folder can also delete the data of other dimensions, and this mod addresses that defect. The fix is packaged as a mixin-based Fabric mod by Kneelawk, building on a dimension-removal fix by alcatrazEscapee.
Its scope includes the Unyeets Nether End world and worlds using dimension mods such as Heart Machine and Applied Energistics 2, and the author notes other affected dimension mods beyond those. Because the work happens on the server, clients need nothing. The code is open source under the MIT License, and both the source code and an issue tracker are public. Builds cover 1.16.3, 1.16.4 and 1.16.5, with 1.16.3-1.2.0 for 1.16.5 as the latest file from 2021-04-01.
Key features
Dimension upgrade repair
Worlds loaded without their dimensions upgraded between Minecraft versions can be brought back to a working state.
Safe dimension removal
Removing one dimension's world no longer deletes the data belonging to other dimensions.
Mixin-based fix
The changes are applied through mixins, so the mod patches game behavior without replacing whole classes.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Dimension mod worlds
Servers running dimension mods such as Heart Machine or Applied Energistics 2 can repair worlds affected by the upgrade problem.
Removing a dimension
Server owners removing a single dimension can keep the other dimensions' data intact.
Who it’s for: Server owners running Fabric worlds on 1.16.3 – 1.16.5 that use dimension mods, and who need the dimension upgrade or removal fix.
How it compares
Title Fixer is a client-side Fabric mod for 1.16.2 – 26.2, licensed under the GNU Lesser General Public License v3.0 only and open source, so it targets a different problem on the player's side. Configurable Data Fixers is open source under the GNU Lesser General Public License v3.0 only and runs on Fabric and Quilt for 1.19.2 – 1.20.1, with the server required and the client optional, so it covers a later version range than this mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Dimension Update Fixer | Fabric | 1.16.3 – 1.16.5 | Server-side only | 2021-04-01 |
| Title Fixer | Fabric | 1.16.2 – 26.2 | Client-side only | 2026-08-16 |
| Configurable Data Fixers | Fabric and Quilt | 1.19.2 – 1.20.1 | Server required, client optional | 2023-08-28 |
Questions
Does Dimension Update Fixer need to be installed on the client?
Which game versions does Dimension Update Fixer support?
Does Dimension Update Fixer need Fabric API?
In the catalog
Dimension Update Fixer is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 5,992 mods support Minecraft 1.16.5.
More from Kneelawk
Similar mods
What the author says
This mod does now fix the issue where removing a dimension from a world deletes all other dimensions.
Official listing
- Modrinth page
- modrinth.com/mod/dimension-update-fixer
- Owner
- Kneelawk
- Published
- 2020-12-28
- Updated on Modrinth
- 2021-04-01
- Facts verified
- 2026-10-15