Release 1.21.1-0.1.4+dev-71776773

Highlights

• Backported async lightning capability planning.
• Backported fluid source assembly, ME recovery, and fluid preview materials.
• Updated JEI integration and support for optimized recipe layouts.
• Backported capacity-only recipe output policy.

Fixes

• Fixed fluid level rendering.
• Fixed controller placement, vertical overlay alignment, and overlay render-layer selection by sprite transparency.
• Fixed spectator menus and deferred startup references.
• Fixed API identifier boundaries.
• Fixed safe caching of native output failure requirements.

Performance

• Backported native lightning recipe search and strict async recipe search, including failure wakeup and catalog indexing optimizations.

Maintenance

• Updated dependencies.
• Backported Java parameter name retention for builds.
• Updated README with GitHub Actions and download badges.