Preview 26.50.26

[leaheleo]

Read the previous release notes here

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Summary

Hello and happy preview day 🥳! We are now on Preview 26.50.26, as of Tuesday, August 18th, 2026.

As a reminder of Editor API support:

• Editor Extensions overview article and API reference documentation on learn.microsoft.com
• Starter Kit: Contains the compiler tools and various libraries required to get started making Editor Extensions
• Samples created by our team to jump-start your own Extension creations

Additionally, if you're new to the Editor GitHub this week, we encourage you to join the Bedrock Add-Ons Discord #Editor channel!

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Block Picker

• Fixed the Flowing Water and Flowing Lava blocks displaying as "Water" and "Lava", making them indistinguishable from their still variants

Full Change Log

• Added user-friendly biome and block names to minimap hover tooltips, making it easier to identify biomes and blocks at a glance
• Updated custom biome color handling so that color changes are now immediately displayed both in the biome list and on the minimap for Custom Biome Tool
• Fixed a bug that caused undo operation to fail sometimes for large block operations
• Added Undo/Redo functionality for Placing a layout instance.
• Selecting Local Lights configuration from Vibrant Visuals will now display an error if the world doesn't have resource pack definitions
• Added ControlHelp feature in the Editor. This allows the user to see what keyboard shortcuts are available in any context (globally and tool-specific) .
• addColorPicker on a sub pane header now renders a compact square swatch
• Added Swatch variant to ColorPickerPropertyItemVariant for color pickers that need to collapse to a single square
• Reworked the Cinematic tool's keyframe list to use expandable sub panes instead of a list pane
  • Each keyframe now owns an expander holding its name, timestamp, camera position, a collapsible rotation section, and easing type, with a teleport button and an action menu in the header
  • Added a view control footer that selects, duplicates and deletes checked keyframes, redistributes timestamps, and copies or imports cinematic JSON, replacing the buttons that previously sat above the keyframe list
• Template Instance Editor - added confirmation dialog for the action of Baking an instance.
• Improved Primitives tool placement performance and increased maximum allowed shape sizes

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Thank you for being here! You're the best! ❤️