rrtt217

the latest pre-release contains debian trixie deb, it may work just right now.

Hi, I've been exploring the same issue for months, but independently. After testing Forge 1.16.5, 1.18.2, 1.20.1 and NeoForge 1.21.1 and 1.21.8, I've been able to reach to a preliminary...

Relevant code is in [src/main/java/net/neoforged/neoforge/network/DualStackUtils.java](https://github.com/neoforged/NeoForge/blob/1.21.x/src/main/java/net/neoforged/neoforge/network/DualStackUtils.java). I'm not sure why they set java.net.preferIPv4Stack and java.net.preferIPv6Addresses according to the server address in this file, and vanilla and Fabric don't do that. Is...

The problem might also happen if you enter singleplayer world before opening the multiplayer screen!

The "velocity" refers to https://papermc.io/software/velocity, which is not a modpack. The backend is a Fabric 1.21.8 Server that is compatible with vanilla. After modifying the version matching logic(aka. matching the...