Goals

• Rename world config's entity.spawning.despawn-time. The config should not imply that the removal follows all server despawn logic
• Rework brigadier client tree building. Redirects make briagdier commands a graph instead of a tree. DFT is not a suitable algorithm for such data structures.
• Add data converter for invalid team colours, revert Remove invalid team colors nicely #12874

1.21.10 TODOs

• adventure update (paper-api and paper-server build scripts)
• world border migration & check coordinate scale use
• audit spawn position changes
• add a setSpawnLocation variant w pitch and yaw use pitch and yaw when setting spawn pos with Location
• Add API equivalent for SelectableSlotContainer and move common Shelf/ChiseledBookshelf API?
• texture overrides in ResolvableProfile
• Teleport changes Teleport rework #13181

1.21.11 TODOs

• anything marked with 'TODO - snapshot'
• Environment attributes API
• 25w43a:
  • Connection, ServerConnectionListener - dropped diff for thread pool config (fields gone)
• 25w44a:
  • ShulkerBoxBlock: retainUnlootedShulkerBoxLootTableOnNonPlayerBreak patch no longer applies (getDrops override removed)
  • Reimplement int based gamerule access #13372
• 25w45a:
  • Patrol spawning start day config option overrides environment attribute timeline #13369
• 1.21.11-pre2:
  • Review BlockLockCheckEvent changes