10.9.0 RC1

Enhancements

• Components:
  • UnitControl: Reduce code duplication for defined units. (32731)
  • BoxControl: Add support for grouped directions (vertical and horizontal controls). (32610)
  • Notice: Added onDismiss option in createInfoNotice. (32338)
• Block Library:
  • Latest Posts: Limit latest-post authors dropdown to users with published posts. (32662)
  • Calendar: Add loading and empty state. (31504)
  • Query Loop: Add helpful text to the block. (32694)
  • Query Loop: Rename QueryLoop to PostTemplate and change Query label. (32514)
  • Spacer: Try an alternate min-height fix. (32543)
  • Heading: Show all heading levels in toolbar group. (32483)
  • Post Terms: Add a CSS class to identify the taxonomy. (31832)
  • Legacy Widget: Move block to @wordpress/widgets. (32501)
• Block Editor:
  • Enhance link control UI with rich URL previews. (31464)
  • List View: Allow expanding and collapsing of nested blocks. (32117)
  • Editor Breadcrumb: Add a rootLabelText prop. (32528)
  • Don't hardcode CSS units. (32482)
  • Refactor LinkControl component to support React 17. (32552)
  • Remove snapshots from tests for LinkControl. (32592)
• Block Support:
  • Update border support to allow non-pixel units. (31483)
• Icons:
  • Add new icons. (32371)
  • Tweak people icon. (32354)
  • Expose trendingDown and trendindUp icons. (32124)
• Template Editing Mode:
  • Update welcome guide language for the template editor. (32639)
  • Translate delete template confirmation message. (32647)
  • Disable renaming templates named by core; Display descriptions. (32636)
  • Update the template creation modal. (32427)
• Post Editor:
  • Use the post type singular_name as the root Block Breadcrumb label. (32609)
  • Absorb block manager within blocks preferences. (32166)
• Widget Editor:
  • Hide some settings from the "Options" menu on small screens. (32690)
  • Add Breadcrumbs Block. (32498)
  • Use button block appender in widget areas. (32580)
  • Add show block bread crumbs feature toggle to more menu. (32569)
  • Unhide the classic menu widget. (32431)

Bug Fixes

• Block Library:
  • Image Block: Fix cover block exists check. (32666)
  • Embed: Fix embed to paragraph transform when caption has rich text formats. (32355)
  • Columns: Fix deprecation caused when adding a column. (32378)
  • Site Logo: Fix site-logo not getting removed on remove_theme_mod. (32370)
  • Social: Try to fix color inheritance for social links. (32625)
  • Social: Correctly position the link popover when List View is open. (32525)
  • Code: Try an experimentalSelector. (31742)
• Block Editor:
  • RichText: Fix loss of list content when switching list types. (32432)
  • useBlockDropZone: Fix horizontal indicator. (32589)
  • Inserter: Fix insertion point displaying when there are no inserter items. (32576)
  • Drop indicator: Show around dragged block and show above selected block for file drop. (31896)
  • Fix vertical scroll in horizontal toolbar. (32655)
  • Fix block multi selection in nested blocks. (32536)
  • Fix block toolbar overlap with header. (32424)
• Blocks:
  • Avoid keeping the same client ID when transforming blocks. (32453)
  • Allow themes to add inline styles for all blocks when using lazy styles loading. (32275)
• Components:
  • RadioControl: Add hideLabelFromVision prop. (32414)
  • DatePicker: Fix crash when navigating between months. (31751)
  • Autocomplete: Prevent setting state for unmounted component. (32654)
• Editor:
  • Make link UI rich previews target agnostic and fix unwanted preview for internal URLs. (32658)
• Widget Editor:
  • Don't delete a widget if it is moved to a different area. (32608)
  • Fix button spacing in header. (32585)
  • Decode HTML entities for name and description props. (32503)
  • Fix dirty state after adding new block. (32573)
  • Don't add undo levels when editing records on save. (32572)
  • Save deleted and restored widgets. (32534)
  • Don't show widgets in menu without theme support. (32420)
  • Fix inspector opening on click outside widget area. (32450)
  • Legacy Widget: Don't display "No preview" when widget has image tags. (32605)
• Post Editor:
  • Prevent locking users in saving state when saving meta boxes fails. (32485)
  • Edit Post: Add metaBoxUpdatesFailure action. (32623)
• Full Site Editing
  • Only add skip-link for block themes & templates on the frontend. (32451)
• Storybook:
  • Fix misc warnings. (32401)
• Data:
  • useSelect: Silently error (for block zombie children). (32088)

Performance

• Block Editor: Remove is-typing root class. (32567)
• Header Toolbar: UseCallback to avoid unnecessary rerenders. (32406)

Experiments

• Component System:
  • Promote Scrollable component to a full export. (32446)
  • Promote Surface component to a full export. (32439)
• Global Styles:
  • Allow presets to provide an empty set of values. (32679)
  • Allow theme authors hook into the preset classes generated by global styles. (32627)
  • Update WP_Theme_JSON API so presets are always keyed by origin. (32622)
  • Make syntax errors in theme.json visible to users. (32404)
  • Enqueue global styles in editor only once. (32377)
  • Enqueue core and theme colors by using separate structures per origin. (32358)
  • Do not migrate the old typography support if the core already did it. (32487)
• Full Site Editing:
  • Template resolution for new posts and pages. (32442)
  • Monopolize navigation in Site Editor. (31810)
  • Prevent duplicate queries. (32700)
  • Split theme.css styles loading. (31239)
• Navigation Editor:
  • Alternative fix: Set persisted menu id when no menus or missing menu. (32313)

Documentation

• Handbook:
  • Update references to register_block_type_from_metadata. (32582)
  • Fix duotone support documentation. (32440)
  • Detail the Gutenberg release post process. (32429)
  • Update Legacy Widget documentation with new info on show_instance_in_rest feature. (32726)

Code Quality

• Components:
  • Remove duplicated compose dependencies. (32709)
  • Sort entries in packages/components/tsconfig.json. (32675)
  • Update the popover component to rely on useDialog. (27675)
  • Card: Add types. (32561)
  • Card: Refactor subcomponents folder structure. (32557)
• Compose:
  • Add types to useDialog and useFocusOnMount. (32676)
  • Add types to withSafeTimeout. (32674)
  • Type withState as any. (32326)
• Block Library:
  • Page List: Avoid generic function names for page list block internal functions. (32736)
  • Latest Comments: Correct the format used for duplicate hook documentation. (32563)
  • Login/out: Update documentation for render_block_core_loginout function. (32158)
• Block Editor: Remove unused select block function. (32532)
• Core Data: Fix typos. (32480)
• Editor: Fix different typos in inline comments, deprecation warnings and variable names. (32474)
• Linting:
  • Edit Post: Fix no-string-literals warning. (32518)
  • Add ESLint import resolver. (31792)
• Plugin:
  • Copy wp_should_load_separate_core_block_assets function from core. (32611)
  • Fix PHPCS Warnings. (32513)

Tools

• Workflow:
  • Fix the add milestone github action. (32691)
  • Use a different cache key for the PR automation workflow. (32588)
  • Improvements to NPM package caching across workflows. (32458)
  • Limit when release artifacts are built on forks: Pt. 2. (32494)
• Build:
  • Load .min.js files even in dev mode, output unminified assets only in prod. (32621)
  • Upgrade husky package to the latest version. (32077)
  • Generate minified .min.js and unminified .js files for GB js entry points when building. (31732)
• End to End Tests:
  • Update mentions tests to use toMatchInlineSnapshot. (32727)
  • Add more user auto-completer (mentions) coverage. (32697)
  • Ignore JQMIGRATE (jQuery migrate) deprecation warnings. (32656)
• Linting:
  • Update linting and formatting for test plugin files. (28033)
  • Update Eslint JSDoc package, introducing JSDoc line alignment check. (25300)
• wp-env: Bump TT1 Blocks to v0.4.7. (32661)