ProjectEF Neo

Fabric Port

This release introduces the Fabric 1.21.1 edition of ProjectE under the name ProjectEF. The F stands for Fabric.

Added

• Fabric Loader support for Minecraft 1.21.1.
• Fabric-safe public API primitives, registries, events, networking, capabilities, and data attachments.
• EMC mapping, recipe mapping, custom conversions, world transmutation, and server-to-client synchronization.
• ProjectE items, blocks, entities, recipes, containers, block entities, and client rendering.
• Energy Collectors, Anti-Matter Relays, Energy Condensers, Dark Matter Furnaces, Red Matter Furnaces, and related automation support.
• Transmutation Table, Transmutation Tablet, Philosopher's Stone, Alchemical Bags, Pedestals, and Eternal Density functionality.
• JEI and EMI recipe viewer integrations.
• Optional Jade and WTHIT integrations when those mods are installed.
• Built-in EMC values for classic Avaritia items.
• Fabric-compatible recipe load conditions for generated recipes and advancements.
• Expanded Simplified Chinese translations and updated localization metadata.

Restored and Fixed

• Creative flight and ring-provided flight behavior.
• GEM armor abilities, including helmet night vision and boot step assistance.
• Dark Matter and Red Matter tool area modes, including 3x3-style modes.
• Philosopher's Stone world transmutation, conversion cycling, selection range rendering, and recipe interactions.
• Dark Matter and Red Matter Furnace fuel handling for ProjectE fuels.
• Volcanite Amulet lava placement and projectile behavior.
• Pedestal item rendering for rings and other supported items.
• /project client diagnostics command registration and execution.
• EMC reload behavior after editing EMC configuration or mapper data.
• Red Matter Sword and Red Matter Katar instant-kill modes for high-health entities.
• Fabric permissions compatibility for Minecraft 1.21.1 and Xaero map integrations.

Platform and Compatibility Changes

• Replaced NeoForge build tooling with Fabric Loom 1.10.5, Mojang mappings, and Parchment mappings.
• Added Fabric access wideners, mixin configuration, and Fabric client/server entrypoints.
• Added Forge Config API Port as a required runtime dependency.
• Bundled the Minecraft 1.21.1-compatible fabric-permissions-api 0.3.1 release.
• Preserved the internal mod ID projecte and the existing config/ProjectE configuration directory.
• Removed or deferred NeoForge-only integrations that do not have a compatible Fabric 1.21.1 implementation, including CraftTweaker, Curios, and The One Probe.
• Trinkets support is not included in this release.
• Artifact names use the format ProjectEF-1.21.1-PE1.1.0.jar.

Requirements

• Minecraft 1.21.1.
• Fabric Loader 0.16.9 or newer.
• Fabric API for Minecraft 1.21.1.
• Forge Config API Port 21.1.0 or newer.
• Java 21.

Known Limitations

• This release targets Fabric only; NeoForge-specific integrations are not available.
• Trinkets and REI integrations are not currently implemented.
• The legacy NeoForge test framework and data generator are not part of the current Fabric build.