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.

[v26.3.4-mc26.3.x] - 2026-09-23

Added

• Add TooltipBuilder::setExtraSpaceAfterFirstLine for restoring the extra space vanilla inserts after the first tooltip line

Changed

• Rework some methods in DataProviderBuilder

Fixed

• Fix SpawnerDataBuilder passing arguments to addSpawn in the wrong order

[v26.3.3-mc26.3.x] - 2026-09-22

Added

• Add DataPackRegistriesContext::registerReloadableRegistry for registering reloadable registries

Changed

• Update GameplayContentContext to use the new TRANSFORMABLES data map on NeoForge

[v26.3.2-mc26.3.x] - 2026-09-21

Fixed

• Fix IdBoundRecipeOutput creating recipe holders in foreign namespaces, which failed data generation

[v26.3.1-mc26.3.x] - 2026-09-20

Fixed

• Fix EndermanFabricMixin name in Mixin config

[v26.3.0-mc26.3.x] - 2026-09-20

Added

• Rework biome modification API, most notably introducing BiomeSelector, BiomeTransformer and AttributesContext
• Add AbstractLootSubProvider, AbstractBlockLootSubProvider and AbstractEntityLootSubProvider replacing AbstractLootProvider
• Add AbstractBrewingProvider replacing RegisterPotionBrewingMixesCallback
• Add DataProviderBuilder replacing DataProviderHelper on NeoForge
• Add SubmitArmWithItemCallback replacing RenderHandEvents

Changed

• Update to Minecraft 26.3.x
• Rework AbstractAdvancementProvider and AbstractRecipeProvider around BootstrapContext
• Make AbstractLanguageProvider implement TranslationBuilder
• Rework DataProviderContext methods
• Rework AbstractModPackResources and PackResourcesHelper while introducing additional classes
• Allow RenderStateExtraData to handle render states other than for entities
• Rework MutableBakedQuad, removing NeoForge only method from the shared implementation surface
• Deprecate and slim down ShapesHelper in favor of vanilla's shape rotation methods
• Adjusted status bar heights registered via GuiLayersContext for changes in Fabric API
• Rename SimpleContainerImpl as ContainerTemplate

Fixed

• Fix AbstractTagAppender::addOptional calling add instead of addOptional for its varargs overload

Removed

• Remove AbstractDatapackRegistriesProvider while moving all helper methods to ContentRegistrationHelper
• Remove RegistriesDataProvider
• Remove DynamicPackResources
• Remove GameRenderEvents and RenderBlockOverlayCallback
• Remove GameplayContentContext::registerFuel and GameplayContentContext::registerCompostable
• Remove ContentRegistrationHelper::registerContextKeySet
• Remove most of ResourceKeyHelper, while moving the remaining methods to ContentRegistrationHelper
• Remove outdated trim support from AbstractAtlasProvider
• Remove CalculateLivingVisibilityCallback