- Skip deferred custom block records whose live block no longer matches the provider carrier type
- Leave air-carrier furniture and unresolvable carriers to the provider unchanged
- Resolve each carrier once per chunk pass and log skipped records once per chunk at debug level
- Skip tile records quietly when the live block no longer matches the tile material
- Apply the same carrier check to the modded custom block pass
- Add Bukkit, CraftEngine and modded regression tests for flattened, replaced, intact and furniture records
- Unit test for the 1.21.1 saved-dimension rule: replaced stems keep their saved generator, Iris worlds and new dimensions persist as they run
- The mixin audit test lists the two 1.21.1 persistence mixins as deliberately unaudited
- Build Fabric, Forge and NeoForge per target listed in gradle/mod-targets.json (1.21.1, 26.3)
- Add 1.21.1 adapter source overlays under adapters/*/src/versions/1.21.1
- Add verifyModdedMatrix and per-target Java runtime verification of loader jars
- Re-inject persistent dimensions from the levels-ready hook before the watchdog starts
- Wait for queued chunks and the final save before pregen completes
- Add the 1.21.1 data version and datapack supported_formats range
- Cascade regions whose sea or shore pool loses every biome
- Use Gson calls available on the 1.21.1 runtime
Brian Neumann-Fopiano