Gutenberg

React 19 upgrade has been reverted in the data layer.

Restored polyfills for Element render, hydrate, and unmountComponentAtNode, and added ReactCurrentOwner polyfill. Reverted a change to wp-build getter-based exports that caused regressions.

Gutenberg now supports React 19. Post editor blocks can have multiple note threads per block. Component library enhancements include DataViews design token adoption, overlay positioner slot pattern extensions, and tooltip migrations across editors and block directory.

Fixed an issue with registered post meta scope.

Fixed a fatal error that occurred when the rest_api_init hook fired before the init hook.

Responsive global block styles with states are now available for testing, and the Grid component gains edit-mode overlay, improved resize handling, and keyboard accessibility fixes. Plus dozens of component, block library, and editor improvements including ColorPalette key warnings fixed, revisions accessibility hardened, and Connectors registration refined.

Fixed Style Runtime to support CSS module style injection across multiple documents.

Changelog

Features

• Upload Media: Enable concurrent sideload uploads. (75888)
• Ex...

Changelog

Bug Fixes

Guidelines

• Drop default_term from wp_guideline_type taxonomy. ([77592](https://github.com/WordPress/gutenbe...

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Enhancements

Components

• @wordpress/ui: Add global CSS defense module. ([76783](https://github.com/WordPress/gutenberg...

Changelog

Enhancements

Block Editor

• DOM: Prefer standard caretPositionFromPoint over deprecated caretRangeFromPoint. ([7692...

Changelog

Bug Fixes

Build: detect version and generate asset.php for vendor scripts ([76811](https://github.com/WordPress/gutenberg/pull/...

Changelog

Bug Fixes

Collaboration

• RTC: Fix editor freeze when replacing code editor content. ([76815](https://github.com/WordPr...

Changelog

Features

Collaboration

• RTC: Add preference for collaborator notifications. ([76460](https://github.com/WordPress/gutenb...

Changelog

Bug Fixes

• Fix script module dequeue race condition. (76170)
• Sync chan...

Changelog

Enhancements

• Add phpMyAdmin support to wp-env Playground runtime. (75532) ...

Changelog

Features

• wp-env: Add --config option for custom configuration files. ([75087](https://github.com/WordPress/gutenberg/pull/750...

Changelog

Bug Fixes

Block Library

• Post Excerpt Block: Remove REST API filter for excerpt length in post excerpt block. ([75299]...

Changelog

Bug Fixes

Block Library

• Fixed: Custom colors are now reflected in the editor for heading blocks. ([75234](https://git...

Changelog

Enhancements

Block Library

• Add custom CSS support for individual block instances. ([73959](https://github.com/WordPress...