Verity JE on NeoForge 1.21.1: Deprecated Branch Warning

Verity NeoForge 1.21.1 is not the default route

What to know before installing the deprecated Verity 3.4.1 NeoForge 1.21.1 branch and when to return to Forge 1.20.1.

DIRECT ANSWER

The Verity JE maintainer explicitly marks the NeoForge 1.21.1 branch deprecated and says it has many bugs. Use it only when an existing 1.21.1 environment is mandatory and you accept the unsupported risk; otherwise use Forge 1.20.1.

Evidence checked July 18, 2026 · How verification works

Why the newer Minecraft version loses

Compatibility is a project decision, not a version-number contest. The current main file is on Forge 1.20.1, while the NeoForge file is older and carries the maintainer warning.

If you must test it

Create an isolated NeoForge 1.21.1 profile, never drop the file into a Forge or Fabric instance, and use a copied world. Record the exact Verity file, loader build, Java runtime, and error before seeking help.

Fallback

Move to a clean Forge 1.20.1 profile instead of repeatedly swapping JARs in one folder. Keep the original profile intact until the stable path is verified.