CTW_2023_26.3: compatibility update for Minecraft Java Edition 26.3.
Based on the supplied world: CTW_2023_v1-3.
Original map design, buildings, credits and licence are retained.
This is an unofficial compatibility update, not a new release by the original authors.
Changes: commands, datapacks, item/entity data, saved structures, sign controls,
combat predicates, loot and recipe formats; repaired broken control/reward references.
See ../VALIDATION-26.3.txt for the full checks and remaining testing limits.
