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

This is a copy of the changelog for the most recent version. For the full version history, go here.

[10.0.0+1.21.4] - 2025.05.15

For an in-depth overview of API changes, refer to this guide.

Added

• Added ways for developers to listen to state changes (when an item is the same) and differentiate them from item changes:
  • CurioChangeEvent is now abstract, with added CurioChangeEvent.Item and CurioChangeEvent.State subclasses
  • onStateChange method added to ICurio and ICurioItem
• A new preset slot type, feet, has been added with an included default icon
• Added slot type predicates for more advanced checking in CurioAttributeModifier
• Added new data generation options, including the ability to generate tags within the same provider as the Curios data
• Added curios:player_like entity type tag, with entries for players and armor stands
• Added entities field to slot type data files for marking default entity types to add the slot type to automatically, without needing a corresponding curios/entities file
• Added the ability to create slots directly inside curios/entities data files, without needing a corresponding curios/slots file
• Added curios:generic_exclusions item tag for declaring curio items that should not be equipable into the generic curio slot by default
• Added preset slot type constants and tags to CuriosSlotTypes and CuriosTags respectively

Changed

• Updated to Minecraft 1.21.4
• Following the state change additions, onUnequip and onEquip no longer fire if the detected items are the same
• ICurioRenderer#render parameters have been adjusted for Minecraft changes
• ICurio.DropRule has moved to top.theillusivec4.curios.api.common.DropRule
• CurioAttributeModifierEvent now uses CurioAttributeModifiers instead of maps
• Moved SetCurioAttributesFunction to the official API package

Removed

• Removed all previously deprecated classes and methods

Deprecated

• Deprecated slot type methods in CuriosApi, replaced by methods in CuriosSlotTypes.
• Deprecated getAttributeModifiers in ICurio and ICurioItem
• Deprecated CuriosRendererRegistry, replaced by methods in ICurioRenderer
• Deprecated the previous utility methods in ICurioRenderer, replaced by setupHumanoidAnimations and copyHumanoidProperties
• Deprecated attribute map methods in CurioAttributeModifierEvent
• Deprecated CuriosTooltip
• Deprecated ISlotType#getIdentifier, replaced by getId
• Deprecated ICurioSlotExtension#getSlotTooltip, replaced by getSlotTooltip with an additional parameter for original tooltip lines