Mojang has rolled out the Minecraft Preview Update 1.21.90.27, delivering crucial fixes for the Vibrant Visuals graphical overhaul and refining mob behaviors. This update is now available on Xbox, PlayStation, Windows, and iOS, with an Android beta version also released. While addressing key issues, Mojang continues to work on unresolved bugs reported by the community.

The Vibrant Visuals update introduces stunning graphical enhancements like volumetric lighting, water caustics, and pixel-perfect shadows. These upgrades, long requested by fans, also include biome-specific color grading and dynamic fog density for deeper immersion. However, the initial rollout faced rendering issues, which this preview update aims to resolve:

• Nether ambient lighting now displays correctly.
• Fog settings in humid biomes are adjusted for realism.
• Android-specific fixes eliminate green tinting and black screen glitches.
• Temporary rollback of sky/weather effects pending further optimization.

Several mobs received adjustments to improve gameplay balance:

• Ghastling: Movement speed reduced for better pacing.
• Happy Ghast: Detection zone simplified to a single box, eliminating edge jitters.
• Leash mechanics: Fixed for Allay, Glow Squid, and Snow Golem. Players can now leash entities to Glow Squids!

Technical Fixes

The update also tackles technical quirks:

• Block opacity settings temporarily reverted pending a future patch.
• Item animations now display correctly when held.
• Default camera controls standardized across devices.

How to Access the Update

• Preview build: Available on Xbox, PlayStation, Windows, and iOS.
• Beta build: Android users can opt in via the Minecraft Beta program.

Full Patch Notes

Graphical Fixes

• Fixed Nether lighting in Vibrant Visuals.
• Corrected fog in warm/humid biomes.
• Resolved Android-specific green tint (MCPE-220308).

Mob Updates

• Ghastling speed reduced.
• Happy Ghast detection simplified.
• Leash fixes for Allay, Ocelot, and Squid variants (MCPE-220035).

Technical Adjustments

• Temporary opacity rollback for blocks.
• Fixed garbled item textures.
• Standardized camera controls.