Changelog for Minecraft 1.21.1

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

1.21.1-1.29.2 - 2026-07-28 16:53:34

Fixed

• Fix EntityHelpers not spawning any entities Closes CyclopsMC/EvilCraft#1239 Regression due to CyclopsMC/EvilCraft#1102

1.21.1-1.29.1 - 2026-04-28 19:39:06 +0200

Fixed

• Fix active arrows on disabled WidgetNumberFields

1.21.1-1.29.0 - 2026-02-17 10:55:45 +0100

Added

• Add AND, OR, and NOT logical expression support to NBT path Expression such as (@.a > 5 && @.a < 15) || @.a == 20 or $.items[?(@.min < 10 && @.min > 5)] can not be executed. Closes #210

Changed

• Modify value if needed when setting minValue in WidgetNumberField

1.21.1-1.28.0 - 2025-12-22 13:54:29 +0100

Added

• Add helpers for registering to structure template pools Required for CyclopsMC/EvilCraft#1146
• Add PoiConfigCommon
• Add translations through Crowdin (#213)

1.21.1-1.27.2 - 2025-11-11 13:52:44 +0100

Fixed

• Fix packets always being handled on the main thread Related to CyclopsMC/IntegratedCrafting#156

1.21.1-1.27.1 - 2025-10-22 16:29:43 +0200

Fixed

• Fix empty item entities being spawned Closes CyclopsMC/IntegratedTunnels#348

1.21.1-1.27.0 - 2025-10-07 07:43:29 +0200

Added

• Add IngredientComponentStorageComposite (required for Integrated Mekanism)

1.21.1-1.26.2 - 2025-08-08 20:10:42 +0200

Changed

• Add translations through Crowdin (#208)
• Update PT_BR localization (#206)

1.21.1-1.26.1 - 2025-05-31 19:12:50 +0200

Fixed

• Fix scrollbar not moving on screen resize Closes CyclopsMC/IntegratedDynamics#1515

1.21.1-1.26.0 - 2025-05-03 15:27:36 +0200

Added

• Allow infobooks to be placed in lecterns Required for CyclopsMC/IntegratedDynamics#1496 and CyclopsMC/EvilCraft#1110.

1.21.1-1.25.9 - 2025-04-12 13:29:59 +0200

Fixed

• Fix insertion into some slots failing Closes CyclopsMC/IntegratedDynamics#1502

1.21.1-1.25.8 - 2025-03-24 16:19:02 +0100

Fixed

• Fix not all key combinations working for key bindings Closes CyclopsMC/IntegratedTerminals#166

1.21.1-1.25.7 - 2025-02-24 16:19:08 +0100

Fixed

• Fix EvilCraft entity crash with some mobs, Closes CyclopsMC/EvilCraft#1102

1.21.1-1.25.6 - 2025-02-03 20:06:56 +0100

Added

• Add ja_jp translations
• Add nl_nl translations

Fixed

• Fix items with empty fluid containers being stored inconsistently Items with empty fluid containers could be stored in two different ways. This change ensures that there is only a single canonical way to store them. This could cause issues with items from EvilCraft when attempting to autocraft them and getting them recognized by the system. Closes CyclopsMC/EvilCraft#1089

1.21.1-1.25.5 - 2024-12-06 16:01:04 +0100

Added

• Add IDynamicModelElementCommon

1.21.1-1.25.4 - 2024-11-25 16:00:51 +0100

Fixed

• Improve client performance of large scrolling containers This fixes performance issues when having the gui open of a large Colossal Chest.

1.21.1-1.25.3 - 2024-11-19 10:09:18 +0100

Changed

• Invoke Fabric block explode event before block is removed Required for CyclopsMC/ColossalChests#174

1.21.1-1.25.2 - 2024-10-23 18:53:06 +0200

Fixed

• Fix recipe caching not considering different rotations, Closes CyclopsMC/IntegratedTerminals#129

1.21.1-1.25.1 - 2024-10-09 19:16:16 +0200

Added

• Add fluid gui helpers to Forge and Fabric

1.21.1-1.25.0 - 2024-10-09 16:48:58 +0200

Added

• Improve multiloader support
  • Add IBlockExplodedEvent
  • Add ConditionConfigFabric
  • Move ItemStackBlockEntityRendererBase to common
  • Add ConditionConfigForge
  • Port scrolling container to common
  • Port large and indexed inventory to common
  • Move multiblock helpers to common

1.21.1-1.24.0 - 2024-09-30 17:01:48 +0200

Added

• Improve multiloader support
  • Support extended screen handlers in Fabric
  • Add Fabric events for entity join, entity tick, and player join
  • Add ILivingEntityRendererEvent for Fabric
  • Add ILootTableModifyEvent for Fabric
  • Add LootModifierConfigForge
  • Migrate particles to common
  • Add getCraftingRemainingItem to ItemStackHelpers
  • Abstract ContainerTypeData to common
  • Move NamedContainerProviderItem to common
  • Move ItemGui to common
  • Add gui helpers to common
  • Move gui components to common
  • Add ItemInventoryContainerCommon to common
  • Move item location to common
  • Move config command to common
  • Migrate ring of fire and debug command to common
  • Abstract packet handling across mod loaders
  • Allow commands to be registered in common base mod
  • Add world helpers to common

Changed

• Make DeferredHolderCommon work with IForgeRegistry

Fixed

• Fix loader-specific configurable types sometimes not working

1.21.1-1.23.0 - 2024-09-16 16:41:25 +0200

Added

• Port advancement criteria to Forge and Fabric
• Add biome modifier config to Forge
• Add entity config to common

Changed

• Move capacity and energy components to common

Fixed

• Fix some config registrations for some registries in Forge failing

1.21.1-1.22.0 - 2024-09-04 17:21:43 +0200

Added

• Additions for multiloader support
  • Add crafting helpers to common
  • Move registry manager to common

1.21.1-1.21.1 - 2024-09-01 17:31:39 +0200

Fixed

• Fix config dictionary not being fully populated This could cause mods with infobooks still depending on the old configs API to miss many book entries. Closes CyclopsMC/EvilCraft#1055

1.21.1-1.21.0 - 2024-09-01 15:21:27 +0200

Added

• Additions for multiloader support
  • Implement barebones openMenu helper for Fabric
  • Port base guis and registration to common
  • Add SimpleInventoryCommon
  • Move blocks with guis to common

1.21.1-1.20.5 - 2024-08-25 19:41:48 +0200

Fixed

• Fix invalid config file entry names being generated

1.21.1-1.20.4 - 2024-08-24 07:04:11 +0200

Fixed

• Fix other MinecraftHelpers.* causing crashes at startup

1.21.1-1.20.3 - 2024-08-23 11:09:55 +0200

Fixed

• Fix Helpers.* causing crashes at startup

1.21.1-1.20.2 - 2024-08-22 17:48:15 +0200

Fixed

• Fix MinecraftHelpers.isClientSide causing crashes at startup

1.21.1-1.20.1 - 2024-08-20 17:42:51 +0200

Fixed

• Fix CyclopsCore mod helpers being invoked before mod is initialized, Closes #190

1.21.1-1.20.0 - 2024-08-18 12:52:33 +0200

Changed

• Refactor code to be compatible with NeoForge, Forge, and Fabric.

[1.21.1-1.19.11] - 2024-08-09 21:00:37 +0200

Fixed

• Update to updated CommonCapabilities API Required for CyclopsMC/IntegratedDynamics#1375