Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.6-1.21.11] - 2026-01-09

Fixed

• Fix GatherPotentialSpawnsCallback not firing for nether fortress spawns on Fabric

[v21.11.5-1.21.11] - 2026-01-03

Fixed

• Fix MobEffectEvents$Remove running when the MobEffectInstance is null
• Fix MobEffectEvents$Expire not allowing for returning an EventResult

[v21.11.4-1.21.11] - 2025-12-20

Added

• Add GameRuleUpdatedCallback
• Add back GatherEffectScreenTooltipCallback

[v21.11.3-1.21.11] - 2025-12-17

Added

• Add PackResourcesHelper::isPackHidden and PackResourcesHelper::setPackHidden

Changed

• Enable all model-related events again on Fabric

[v21.11.2-1.21.11] - 2025-12-14

Added

• Add MutableBakedQuad

[v21.11.1-1.21.11] - 2025-12-13

Fixed

• Fix ExtractRenderStateCallback not running on Fabric

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.4-1.21.11] - 2025-12-20

Added

• Add GameRuleUpdatedCallback
• Add back GatherEffectScreenTooltipCallback

[v21.11.3-1.21.11] - 2025-12-17

Added

• Add PackResourcesHelper::isPackHidden and PackResourcesHelper::setPackHidden

Changed

• Enable all model-related events again on Fabric

[v21.11.2-1.21.11] - 2025-12-14

Added

• Add MutableBakedQuad

[v21.11.1-1.21.11] - 2025-12-13

Fixed

• Fix ExtractRenderStateCallback not running on Fabric

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.3-1.21.11] - 2025-12-17

Added

• Add PackResourcesHelper::isPackHidden and PackResourcesHelper::setPackHidden

Changed

• Enable all model-related events again on Fabric

[v21.11.2-1.21.11] - 2025-12-14

Added

• Add MutableBakedQuad

[v21.11.1-1.21.11] - 2025-12-13

Fixed

• Fix ExtractRenderStateCallback not running on Fabric

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.2-1.21.11] - 2025-12-14

Added

• Add MutableBakedQuad

[v21.11.1-1.21.11] - 2025-12-13

Fixed

• Fix ExtractRenderStateCallback not running on Fabric

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.1-1.21.11] - 2025-12-13

Fixed

• Fix ExtractRenderStateCallback not running on Fabric

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.11.0-1.21.11] - 2025-12-13

Added

• Add DataPackReloadListenersContext

Changed

• Update to Minecraft 1.21.11
• Refactor SubmitBlockOutlineCallback into ExtractBlockOutlineCallback
• Expand context for RenderBlockOverlayCallback
• Unify AbstractTagAppender, while also removing non-optional string-based registration methods
• Provide InteractionHand parameter in UseItemEvents
• Rename PlayerNetworkEvents to JOIN and LEAVE
• Rename RenderNameTagCallback to SubmitNameTagCallback
• Rename RenderLivingEvents to SubmitLivingEntityEvents

Removed

• Remove ResourceLocationHelper
• Remove the partial tick parameter from post-extraction events and methods
• Remove ContainerMenuHelper::addInventorySlots
• Remove RegistryManager::registerLegacySpawnEggItem
• Replace SearchTreeType with vanilla's ContextKey
• Remove AddDataPackReloadListenersCallback & AddResourcePackReloadListenersCallback
• Remove GatherEffectScreenTooltipCallback as the current implementation is not flexible enough for proper usage

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.10.8-1.21.10] - 2025-11-30

Changed

• Revert preventing clients from disconnecting for failed attachment syncs on Fabric

Fixed

• Fix keybind conflicts not showing on Fabric
• Fix LivingDropsCallback failing to capture entity equipment on Fabric

[v21.10.7-1.21.10] - 2025-11-16

Changed

• Support built-in data packs that are enabled by default and can be manually disabled by players
• Prevent clients from disconnecting for failed attachment syncs on Fabric

Fixed

• Fix start-up crash due to an unregistered event callback on Fabric

[v21.10.6-1.21.10] - 2025-11-14

Added

• Add BeforeCharacterType & AfterCharacterType events

[v21.10.5-1.21.10] - 2025-10-21

Changed

• ItemTooltipCallback is no longer called when not on the render thread, to prevent a crash caused from splitting text or measuring text width

[v21.10.4-1.21.10] - 2025-10-20

Fixed

• Fix java.lang.UnsupportedOperationException when joining a world when a mod is trying to remove existing mob spawns on NeoForge

[v21.10.3-1.21.10] - 2025-10-16

Added

• Add ParticleProvidersContext::registerParticleRenderType

Fixed

• Fix a crash that occurred when trying to set an attachment value on NeoForge

[v21.10.2-1.21.10] - 2025-10-11

Changed

• Update for NeoForge 21.10.7-beta
• Small refactors in AbstractLanguageProvider
• Attachment values are no longer set when the old value is equal to the new value

Fixed

• Fix duplicate key categories
• Fix GuiGraphicsHelper::blitNineSlicedSprite using an invalid gui sprites atlas location

[v21.10.1-1.21.10] - 2025-10-09

Changed

• Update for NeoForge 21.10.3-beta

[v21.10.0-1.21.10] - 2025-10-08

Changed

• Update to Minecraft 1.21.10

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.10.7-1.21.10] - 2025-11-16

Changed

• Support built-in data packs that are enabled by default and can be manually disabled by players
• Prevent clients from disconnecting for failed attachment syncs on Fabric

Fixed

• Fix start-up crash due to an unregistered event callback on Fabric

[v21.10.6-1.21.10] - 2025-11-14

Added

• Add BeforeCharacterType & AfterCharacterType events

[v21.10.5-1.21.10] - 2025-10-21

Changed

• ItemTooltipCallback is no longer called when not on the render thread, to prevent a crash caused from splitting text or measuring text width

[v21.10.4-1.21.10] - 2025-10-20

Fixed

• Fix java.lang.UnsupportedOperationException when joining a world when a mod is trying to remove existing mob spawns on NeoForge

[v21.10.3-1.21.10] - 2025-10-16

Added

• Add ParticleProvidersContext::registerParticleRenderType

Fixed

• Fix a crash that occurred when trying to set an attachment value on NeoForge

[v21.10.2-1.21.10] - 2025-10-11

Changed

• Update for NeoForge 21.10.7-beta
• Small refactors in AbstractLanguageProvider
• Attachment values are no longer set when the old value is equal to the new value

Fixed

• Fix duplicate key categories
• Fix GuiGraphicsHelper::blitNineSlicedSprite using an invalid gui sprites atlas location

[v21.10.1-1.21.10] - 2025-10-09

Changed

• Update for NeoForge 21.10.3-beta

[v21.10.0-1.21.10] - 2025-10-08

Changed

• Update to Minecraft 1.21.10

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.8.9-1.21.8] - 2025-10-23

Changed

• Add access widener for CreativeModeInventoryScreen$SlotWrapper

Fixed

• Fix java.lang.UnsupportedOperationException when joining a world when a mod is trying to remove existing mob spawns on NeoForge

[v21.8.8-1.21.8] - 2025-08-13

Changed

• Rework freezing of ConfigHolder and RegistryManager

[v21.8.7-1.21.8] - 2025-08-13

Added

• Add RegistryManager::prepareTag
• Expand methods in CustomItemModelOutput

[v21.8.6-1.21.8] - 2025-08-11

Added

• Add RenderPropertyKey::onUpdateEntityRenderState

[v21.8.5-1.21.8] - 2025-08-10

Changed

• Replace HudStatusBarHeightRegistry with implementation from Fabric

Fixed

• Fix entity interaction events not functioning properly on Fabric
• Fix lenient validation for restricted config values

[v21.8.4-1.21.8] - 2025-08-04

Added

• Add AbstractLootProvider.Blocks::createHeadDrop
• Add CommonHelper::getRegistryAccess

Changed

• Tag contents constructed via AbstractTagProvider are now sorted to ensure consistent results for dynamically added data pack registry entries

[v21.8.3-1.21.8] - 2025-07-31

Added

• Add PackRepositorySourcesContext::registerBuiltInPack
• Support built-in packs in DataProviderHelper
• Add TransformingForwardingList

Changed

• pack.mcmeta is now always created during data generation for every mod

[v21.8.2-1.21.8] - 2025-07-27

Fixed

• Fix Config has already been registered exception

[v21.8.1-1.21.8] - 2025-07-27

Added

• Add AnchorPoint
• Add CommonHelper::getBlockableEventLoop

Changed

• Overhaul ComponentHelper implementation to properly support legacy formatting codes passed as part of a string

Fixed

• Fix some quirks with player interaction events on Fabric

[v21.8.0-1.21.8] - 2025-07-18

• Update to Minecraft 1.21.8

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[v21.5.13-1.21.5] - 2025-10-23

Changed

• Add access widener for CreativeModeInventoryScreen$SlotWrapper

Fixed

• Fix java.lang.UnsupportedOperationException when joining a world when a mod is trying to remove existing mob spawns on NeoForge

[v21.5.12-1.21.5] - 2025-05-29

Fixed

• Temporary workaround for ClientLifecycleEvents$Started firing too late for registering render layers on NeoForge

[v21.5.11-1.21.5] - 2025-05-29

Added

• Add ItemTooltipRegistryV3

Changed

• Update custom configuration screens to better handle startup configs
• Update RegistryManager::registerEntityDataSerializer to use new Fabric Api hook
• Rework CreativeModeTabHelper, including support for painting variants
• Update PlayerNetworkEvents to use Fabric Api's new events in ServerPlayerEvents
• Update AnvilEvents for NeoForge 21.5.73+

[v21.5.10-1.21.5] - 2025-05-01

Added

• Add MenuProviderWithData

[v21.5.9-1.21.5] - 2025-04-23

Added

• Add GuiLayersContext::setEventPhase

[v21.5.8-1.21.5] - 2025-04-23

Added

• Add GuiLayersContext
• Add SpawnerDataBuilder
• Add ItemTooltipRegistryV2
• Add ContainerMenuHelper::openMenu

Changed

• Allow configs to be available during start-up
• Make custom registries optional to handle mod presence mismatches between clients and servers more leniently on Fabric

Fixed

• Only trigger CommandOverrides when commands are allowed
• Fix event phase converters not respecting the ordering of all parent event phases

[v21.5.7-1.21.5] - 2025-04-14

Changed

• Rework implementation for menu types with additional data sent to clients

[v21.5.6-1.21.5] - 2025-04-14

Added

• Add SimpleContainerImpl
• Add RenderPipelinesContext
• Add some overloads to HSV

Fixed

• Fix RenderPipelines failing to register on NeoForge

[v21.5.5-1.21.5] - 2025-04-10

Added

• Add ClientCommonHelper
• Add GuiHeightHelper::getMaxHeight & GuiHeightHelper::getMinHeight

Fixed

• Fix ClassCastException for PlayLevelSoundEvents on Fabric

[v21.5.4-1.21.5] - 2025-04-03

Added

• Add HSV utility class
• Add one more RegistryManager::registerSpawnEggItem overload

Fixed

• Fix entity attributes failing to register on NeoForge

[v21.5.3-1.21.5] - 2025-04-02

Added

• Add ItemTooltipRegistry
• Add EntityHelper::isPiglinCurrency
• Add AbstractLanguageProvider::mustHaveTranslationKey
• Add a few more methods to ClientComponentSplitter

Changed

• Slightly rework AbstractAtlasProvider
• Deprecate some method in ComponentHelper

[v21.5.2-1.21.5] - 2025-04-02

Added

• Add back ModelLoadingHelper::missingModel
• Add a few missing access wideners

Removed

• Remove BlockStateResolverContext$ResourceLoaderContext as it can no longer be supported with current APIs

Fixed

• Fix start-up crash on Fabric due to a faulty Mixin
• Temporarily fix ClientLifecycleEvents$Started not firing on NeoForge due to a bug in the mod loader

[v21.5.1-1.21.5] - 2025-04-01

Changed

• Overhaul internal development structure

Fixed

• Fix client start-up crash on NeoForge caused by Minecraft being null

[v21.5.0-1.21.5] - 2025-03-31

• Port to Minecraft 1.21.5

Added

• Add RegisterConfigurationTasksCallback
• Add ContentRegistrationHelperfor registering new skull block types
• Add QuadUtils
• Add CodecExtras::LIST_TAG_CODEC, CodecExtras::setOf, and CodecExtras::decodeOnly

Changed

• Complete networking refactor, replacing NetworkHandler with ModConstructor::onRegisterPayloadTypes, and adding support for configuration phase messages
• Untie PlayerSet from only being able to handle sending packets
• Split CommonAbstractions into multiple classes such as EntityHelper, EnchantingHelper, and ExplosionEventHelper
• Split ClientAbstractions into multiple classes such as GuiHeightHelper, ClientWoodTypeRegistry, and RenderTypeHelper
• Merge EntityAttributesCreateContext & EntityAttributesModifyContext into EntityAttributesContext
• Refactor ClientStartedCallback into ClientLifecycleEvents
• Support directly registering a texture location in SkullRenderersContext

Removed

• Remove SpecialBlockModelTypesContext
• Remove JsonConfigFileUtil & JsonSerializationUtil
• Remove BlockInteractionsContext, CompostableBlocksContext, FlammableBlocksContext & FuelValuesContext
• Remove ReflectionHelper
• Remove RegisterFuelValuesCallback
• Remove RegistryHelper
• Remove MessageV2
• Remove ClientModConstructor::onRegisterAdditionalModels
• Remove ClientModConstructor::onRegisterCoreShaders
• Remove SetupMobGoalsCallback