The API is now available on the Maven Central Repository.

New:

• Codec API now returns DataResult, allowing errors to propagate and partial-success warnings to accumulate.
• Added Codec#encodeAsync/decodeAsync, Codec.dispatch, Codec.taggedUnion, Codec.tuple, and much more.
• RecordCodecBuilder → RecordBuilder; it has also been rewritten.
• Added EncodeContext/DecodeContext to help simplify more complicated codecs.
• Reflection API now covers more previously missed features.
• Added Menu API, useful for custom containers and crafting UIs, with automatic item movement handling.
• Added config options to toggle Item Server-Side Translation Ticking, Item Ticking, and the Energy Network, as well as an option to change the delay of server-side translation ticking.
• Added new enable_custom_break_speeds and enable_natural_spawning config fields to the features section.
• Added TypedRegistry.
• Added placeholders for permissions:
  • abyssallib:player_has_permission:<permission> — Checks whether the player has the permission (Boolean).
  • abyssallib:player_has_group:<group> — Checks whether the player belongs to a group (Boolean).
  • abyssallib:player_groups — Gets all groups the player is in (List of String).
  • abyssallib:player_group:<index> — Gets the player's group at a specific index in the sorted group list.
  • abyssallib:player_primary_group — Gets the player's group with the highest weight. This can be inconsistent if multiple groups have the same highest weight.
• Added 2 JSON-specific MergeStrategys for replacing or inheriting from existing loot tables, allowing vanilla loot tables to be merged or replaced.
• Added custom block breaking, utilizing the value of BlockProperties#hardness.
• Added CustomTool component, which behaves similarly to the Tool component but for custom blocks.
• Added compress config option to the resource-pack section. Enabled by default; currently minifies all JSON, making it useful for packs with a lot of models.
• Added FakePlayer and OfflinePlayerData APIs for modifying players while they are offline and for using that data with fake players.

Changes:

• RECIPES registry is now typed, allowing recipes of a specific type to be retrieved using RECIPES#getByType.
• Reflection API is now safer.
• UpdateChecker now accepts a String vararg of ignored identifiers (e.g. .alpha, .beta, etc.).
• Resource Pack Server has been optimized.
• external-packs now supports {"path": boolean}, allowing external packs to be exempted from compression. This is required if a pack is already compressed or encrypted.

Fixes:

• Default (folder) recipe registration is now delayed by 10 ticks, giving other plugins time to register their items.
• Fixed duplicate ghost items caused by SSR and ItemTicker in most cases.
• ItemTicker no longer triggers on inventory updates.
• PackServer will no longer duplicate packs for the client, as packs now use deterministic UUIDs.