4.263.0.0-rc.1

Release candidate for Minecraft 26.3, available for Fabric and NeoForge. Published as Beta on CurseForge and Modrinth, and as a prerelease on GitHub.

Added

• Soaring I-IV for elytra reduces weight-induced lift and rocket penalties by 20% per level, capped at 80%. Obtain enchanted books through the enchanting table and apply them with an anvil.
• Configurable weight penalties for elytra flight. Heavier loads reduce glide lift and rocket thrust, with default maximum reductions of 15% and 25% at 1,000 pounds.
• Flight penalties use actual carried weight, including container contents. Carrying-capacity bonuses do not reduce them. Players can still deploy elytra while overloaded.
• Server operators can configure or disable the penalties under Elytra flight in the server settings screen.

Changed

• Updated to Minecraft 26.3 and its matching loader and Cloth Config dependencies.
• Added weight defaults for poplar logs, leaves and saplings, red shrubs, shelf mushrooms, and explorer maps. Crafted additions, including poplar building blocks, cushions, straw beds, and wool/concrete variants, derive their weights from recipes.

Installation and upgrading

• Requires Minecraft 26.3 and Java 25. Install matching Heavy Inventories versions on clients and servers.
• Use Fabric Loader 0.19.5 with Fabric API 0.160.6+26.3, or NeoForge 26.3.0.3-beta or newer for Minecraft 26.3.
• Requires Cloth Config 26.3.159 for the matching loader. NeoForge dedicated servers can omit it.
• Existing server configurations use the enabled flight defaults. Set effects.elytra.enabled to false to retain vanilla flight behavior.
• This begins the 4.263 release line. The jars do not support Minecraft 26.2.