Concurrent Chunk Management Engine - Forge

C2ME-Forge 0.2.0-forge.9.9.6 (Minecraft 1.20.1) - build 2026-10-31

Hotfix for forge.9.9.5. Everything else is the same as forge.9.9.5.

Fixed
• The game crashed at startup with ByePregen 1.1.3.3: "Critical injection failure: Redirector byepregen$captureWrappedFinalDensity … failed injection check". Both mods change the same spot in terrain generation, where each chunk's density functions are set up, and C2ME's change replaced that call, which left no room for ByePregen's. Whether a pack crashed depended on which of the two loaded its changes first; when ByePregen's came first, C2ME's own change was skipped without a warning instead, which switched off one of C2ME's terrain-generation optimizations. C2ME now wraps the call instead, so both changes apply in either order. Every release since forge.7 had this. Tested with ByePregen 1.1.3.3 in both load orders: forge.9.9.5 crashed with the same error, forge.9.9.6 starts and generates, with the terrain unchanged. Test worlds with Architectury and with Canary generate, save and reload without an error.

Known issue
• With ByePregen and C2ME installed together, ByePregen switches its own density compiler off for every chunk and logs a warning each time ("Disabling final-density column evaluator for one NoiseChunk"). Nothing breaks and the terrain is the same; both mods speed up the same part of world generation, and which one should do it when both are installed is planned for forge.10.

Drop-in update. If your game would not start with ByePregen, this is the fix. Support: https://discord.gg/s7BYs6Njj5