Cirrus

Added

• Added per-dimension sky toggles, allowing Cirrus sky effects to be enabled independently of clouds
• Added resource-pack defaults for sky visibility in each dimension
• Added customizable star colour palettes affecting stars, the North Star, and shooting stars
• Added per-biome aurora controls, including resource-pack defaults, individual overrides, and controls for unlisted biomes, with smooth blending between nearby biomes
• Added a "Keep End Glass" option, off by default, that preserves the glass after the dragon dies. Defeat beams still play and fade out without shattering or a flash.

Improved

• Improved cloud rendering performance
• Reduced lightning rendering overhead

Fixed

• Fixed clouds disappearing at low terrain render distances
• Fixed End Glass being difficult to see with the vanilla End sky
• Fixed Aether cloud layers rendering above the islands on Minecraft 1.21.1.
• Fixed sky colours, cloud fades, and smooth time transitions ignoring custom daylight cycle lengths from datapacks on Minecraft 1.21.11 and 26.x
• Fixed sky transition stutter and flickering with AmbientSounds on Minecraft 1.21.11 and 26.x
• Fixed a crash when entering worlds with scaled rendering resolutions
• Fixed horizon fog matching changing colour or fading when looking above or below the horizon, including during sunrise and sunset