Multiple versions of a mod in the same mods folder | The Fabric Project | Page 1

winter blaze Jun 26, 2025, 1:37 PM

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Does Fabric allow you to have multiple versions of a mod in the same mods folder? I tried running multiple versions of create mod together as a test and it seemed to work, my mods folder looked like this:

mods/
├── create-fabric-0.5.1-j-build.1631+mc1.20.1.jar
└── create-fabric-0.5.1-j-build.1609+mc1.20.1.jar

I don't really understand why this worked, and some other mods end up crashing if there are multiple versions of it. Is there anyway to check if a mod is ok with having multiple versions of itself, somewhere in the fabric.mod.json maybe? I'm making a program that needs to read the jar files to extract this kind of data.

vital prism Jun 26, 2025, 1:37 PM

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loader will pick the latest

winter blaze Jun 26, 2025, 1:38 PM

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Ah ok, that makes sense

vital prism Jun 26, 2025, 1:38 PM

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you can check the logs, only one will appear

winter blaze Jun 26, 2025, 1:41 PM

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I did check the logs but I saw multiple fabric api versions and assumed it was loading all of them at the same time somehow

Mods:
  ...
  [✔️] fabric-api-0.86.1+1.20.1.jar
  [✔️] fabric-api-0.92.2+1.20.1.jar
  [✔️] fabric-api-0.92.5+1.20.1.jar
  ...

But yeah it does make sense that it just selects the latest, thank you so much!

vital prism Jun 26, 2025, 1:42 PM

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that looks like a prism log

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you should look down in the log, there's another list of mods loaded

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those are just mods in the folder

#Multiple versions of a mod in the same mods folder