Changes since 17.0.0

Protocol changes

Enum changes

• Updated LevelSoundEvent enum to 1.19.50
• ContainerUIIds adds a new member RECIPE_BOOK (21) - everything above and including ENCHANTING_INPUT shifts value up by 1

Changes since 16.0.0

Protocol changes

New packets

• UpdateClientInputLocksPacket: exact purpose unclear, currently non-functional

Packet changes

• StructureTemplateDataRequestPacket has a new type IMPORT
• StructureTemplateDataResponsePacket has a new type IMPORT

Enum changes

• EntityMetadataFlags added a new CAN_DASH (46) - everything above and including LINGER shifts value up by 1

Other changes

• Fixed ClientboundMapItemDataPacket checking incorrect flags when reading scale field.

Changes since 15.0.0

• Added missing field to ItemStackRequest (BC break)
• Added missing field to StructureSettings (BC break)
• Add color parameter to BossEventPacket::unknown6()

Changes since 14.0.0

• CraftRecipeAutoStackRequestAction: added missing protocol change from 1.19.40 (BC breaking)

Changes since 13.x.x

Protocol changes

Packet changes

• AddActorPacket now requires a new PropertySyncData $syncedProperties field
• AddPlayerPacket now requires a new PropertySyncData $syncedProperties field
• SetActorDataPacket now requires a new PropertySyncData $syncedProperties field

Enum changes

• UpdateAbilitiesPacketLayer has a new EDITOR member

New types

• PropertySyncData: Purpose currently unclear, but appears to be a planned replacement for actor metadata. Currently unused and can be filled with empty arrays for now.

Changes since 12.x.x

Protocol changes

New packets

• GameTestRequestPacket
• GameTestResultsPacket
• RequestNetworkSettingsPacket - this is now the first packet in a session, instead of LoginPacket
• ServerStatsPacket

Removed packets

• AdventureSettingsPacket

Packet changes

• NetworkSettingsPacket has new fields int $compressionAlgorithm, bool $enableClientThrottling, int $clientThrottleThreshold, float $clientThrottleScalar
• StructureBlockUpdatePacket has a new field bool $waterlogged
• TextPacket has a new type TYPE_JSON_ANNOUNCEMENT

New enums

• CompressionType - used by NetworkSettingsPacket

Other changes

• RecipeIngredient now accepts an ItemDescriptor instead of ID+meta. This enables more features like selecting items based on tags, Molang code, or other conditions. The types of descriptors currently supported are:
  • IntIdMetaItemDescriptor - this is used by all current vanilla recipes and is essentially the same as what we had to begin with
  • MolangItemDescriptor - allows selecting compatible items based on a Molang code predicate
  • StringIdMetaItemDescriptor - same as IntIdMetaItemDescriptor, but uses string IDs and doesn't allow negative meta values (?)
  • TagItemDescriptor - allows selecting compatible items based on their type tags, like in Java (see the wiki)

Changes since 12.1.0

• Support for 1.19.21
• Dropped support for 1.19.20

The only change known between 1.19.20 and 1.19.21 has to do with custom blocks. Nobody seems to have any specifics about it.

Changes since 12.0.0

• Added ContainerUIIds for working with the ItemStackRequest system
• Added missing getter for photoId to PhotoInfoRequestPacket
• Use PHP 8.0 features in the code in some places

Changes since 11.0.x

Protocol changes

New packets

• FeatureRegistryPacket - sends generator settings to the client for client-side chunk generation

New enums

• ChatRestrictionLevel
• AttributeModifierOperation
• AttributeModifierTargetOperand

Packet changes

• ClientboundMapItemDataPacket now contains a BlockPosition $origin field
• MapInfoRequestPacket now contains a list<MapInfoRequestPacketClientPixel> - list of map pixels from the client's own chunk generation, to override pixels in the response packet. It's not clear why this is needed.
• ModalFormResponsePacket
  • Now includes a nullable cancelReason field, which can be one of USER_CLOSED or USER_BUSY constants
  • Form data is now nullable, and will be null if the form was closed, rather than the JSON-encoded text null as a string.
• NetworkChunkPublisherUpdatePacket now contains a list<ChunkPosition> $savedChunks - tells the client which chunks not to generate, if client-side chunk generation is enabled
• StartGamePacket now contains a bool $enableClientSideChunkGeneration

Types

• Attribute now requires list<AttributeModifer> in the constructor
• LevelSettings contains the following new fields:
  • bool $disablePersona
  • bool $disableCustomSkins
  • int $chatRestrictionLevel - see ChatRestrictionLevel
  • bool $disablePlayerInteractions
• ClientData JSON in LoginPacket now requires a new TrustedSkin bool

API changes

• LevelChunkPacket now requires ChunkPosition instead of separate chunkX/chunkZ parameters
• Added PacketSerializer->readOptional() and PacketSerializer->writeOptional() - used for boolean-prefixed optional types

Changes since 11.0.3

• Improved performance of PlayerAuthInputPacket->hasFlag().