15.9.0 RC1

Changelog

Enhancements

Block Library

• Add block variations transformation in block switcher. (50139)
• Code block: Add wide align support. (50710)
• Post Title edit: Adjust the logic, so it avoids unnecessary OPTIONS requests. (49839)
• Pattern block: Add experimental flag and syncStatus attrib to allow testing of partial syncing. (50533)
• Pattern block: Add slug as classname to pattern block wrapper. (50641)
• Removes the Post Content block from the inserter in the post editor. (50620)
• Navigation: Handle empty menus in Navigation Browse Mode. (50870)
• Navigation: browse mode list all Navigation Menus. (50840)
• Navigation: remove all edit functionality in Browse Mode. (50788)
• Navigation: Use the ListView in the Navigation block inspector controls. (49417)
• Navigation: Respect showAppender when there are no items in list view. (50711)

Command Center

• Command center available without the experimental flag. (50781)
• Add contextual commands. (50543)
• Marks the commands APIs as public. (50691)
• Update the document title in the site editor to open the command center. ([50369]

Components

• Add an outline when the color picker select box is focused. (50609)
• Button: Update disabled state to be without background. (50496)
• Update tooltip colors. (50792)

Site Editor

• Editor canvas container: Include resizeable iframe in component. (50682)
• Snackbar: Make sure only one template deleted displays at once. (50625)
• Snackbar: Simplify the template revert. (50626)
  (#50369))
• Update the add template menu. (50595)
• Browse Mode: Add snackbar notices. (50794)
• Site Editor navigation: Add corresponding area icon to template part menu items. (50791)
• Update frame resizing. (49910)
• Always show the Styles navigation item. (50573)
• Sort template parts by type in navigation screen. (50841)
• Site editor: Update custom post types with _edit_link. (50563)

Interactivity API

• Image: Add lightbox using directives. (50373)
• File: Add experimental integration with Interactivity API. (50377)
• Support negation operator in selectors. (50732)

Block Editor

• Add lang and dir attributes to text-formatting tools. (49985)
• Use bdo element when defining the language of some text. (50632)
• Block inserter: Improve alignment of block inserter search and close icons. (50439)
• Show visual cue when dragging over empty group block. (50826)
• Add ability to prevent editing blocks using useBlockEditingMode(). (50643)
• Remove unwrap from transforms and add ungroup to more blocks. (50385)
• Add new API to allow inserter items to be prioritised. (50510)
• Integrate prioritizedInserterBlocks API to slash inserter. (50658)

Global Styles

• Custom CSS: Force display of in custom css input boxes to LTR. (50768)
• Styles Navigation Screen: Add Style Book. (50566)

Data Layer

• Data: Improve hasResolvingSelectors redux metadata selector. (50865)

List View

• Remove fade in/out animation for block settings menu icon button. (50823)

Full Site Editing

• Template editing: Improve revert notices. (50302)
• Template pattern modal: Remove internal modal classnames. (50655)
• Library: Rename template parts to library. (50769)

Accessibility

• Modals: Update the Cancel action's button design. (50544)
• Writing flow: Improve keyboard navigation on certain input types. (43667)

Icons

• Add new HeadingLevel icons. (50856)
• Smaller external link icon. (50728)

Bug Fixes

Block Library

• Ensure multiple pattern blocks with the same slug each create unique blocks. (50629)
• Fix inconsistent Link UI in Nav block list view editor. (50774)
• Pattern block: Update frontend render code to match the new version of syncStatus attrib. (50646)
• Revert "Browse Mode: Add snackbar notices (#50794)". (50937)
• Update rel and title labels for navigation and submenu links. (50214)
• Social Link: Remove block on DELETE if empty URL. (50903)
• Navigation: Duplicate LeafMoreMenu into the navigation block and the global sidebar navigation. (50489)
• Post Comments From: Prevent hidden input fields from being focusable in Safari. (50834)

Accessibility

• Fix Multiple Tooltips from Focus Toolbar Shortcut on Site Editor. (50349)
• Fix accessibility issues navigation block experiment. (50786)
• Fix accessibility of the Classic block modal dialog. (50384)
• Fix labelling, description, and focus style of the block transform to pattern previews. (50577)
• ToggleGroupControl: Fix focus and selected style to support Windows High Contrast mode. (50785)

Global Styles

• Add back the global styles logic that forces the solid border when color or width applied. (50498)
• Dimensions Panel: Fix resetting of axial spacing controls. (50654)
• Global Styles: Enable deep linking to the selected block only in the Blocks screen. (50708)
• Global styles revisions: Highlight currently-loaded revision. (50725)
• Better error message when theme.json styles use a duotone preset not in settings. (50714)
• Fix custom duotone filters in frontend. (50678)

Command Center

• Command Center: Fix contextual commands selectors. (50829)
• Command center: Add searchLabel property to commands. (50663)

Components

• Add transparent outline to input control BackdropUI focus style. (50772)
• Update border and focus style of the Input selector in ColorPicker Component. (50703)

Site Editor

• Fix custom template creation regression. (50797)
• Remove the loader from sidebar navigation screen. (50326)
• Update site editor sidebar alignment. (50561)
• Fix useEditedEntityRecord() loading state. (50730)
• Fix width of Template Parts view. (50836)
• Process template part shortcodes before blocks. (50801)
• Convert device type margin styles into non-shorthand syntax. (50441)
• Browse mode Navigation: Fix broken submenu items. (50551)

Inspector Controls

• Template revisions: Require 2 revisions before showing the revisions UI. (50762)

Block Editor

• List block: Fix merging nested list into paragraph. (50634)
• Add grab cursor style for Block mover drag handle button. (50808)
• Fix gutenberg_get_block_editor_settings overriding other hooks. (50760)
• Iframe: Use src instead of srcDoc. (50875)

Rich Text

• File block: Fix editing of empty file name. (50607)

List View

• Ensure settings menu is visible when focused. (50572)

Layout

• Navigation: Fix warning when stretch justification is used. (50568)

Tests

• Fix release performance tests. (50699)

Performance

Block Library

• Nav block: Improve loading UX by preloading Navigation menu requests. (48683)
• Inner blocks: Reduce tree depth to improve performance. (50447)

Site Editor

• Edit Site: Optimize loading useSelect call. (50546)

Experiments

Components

• Add new experimental version of DropdownMenu. (49473)
• Behaviors UI. (49972)

Documentation

• Add link for more details about block variations' example. (50909)
• Components: Back-add changelog for TypeScript types. (50881)
• Add parent and experimental status to the core block reference. (48269)
• Fix syntax highlighting of curating the editor experience guide. (50902)
• Minor updates to theme.json schema pages. (50742)
• Update PHP docblock for WP_Theme_JSON_Gutenberg::Get_property_value. (50527)
• Mobile app: Fix change log typo. (50737)
• Icons: Update README.md to include a link to the documentation. (50606)

Code Quality

Block Library

• Cover: Unlock private APIs outside of the component. (50686)
• Fix column block category. (46048)
• Freeform: Move modal styles to the correct file. (50858)
• Navigation: Remove the check for draft navigation menus from the UnsavedInnerBlocks component. (49161)
• Navigation: Unlock private APIs outside of the component. (50509)
• Remove OffCanvasEditor. (50705)
• Comments: Replace get_comments() with get_comments_number(). (50798)
• Lodash: Remove from Gallery block. (50591)
• Lodash: Remove from Image block. (50592)
• Lodash: Remove from Latest Posts block. (50593)
• Lodash: Remove from Media & Text block. (50587)
• Lodash: Remove from template part block. (50586)
• Lodash: Remove unnecessary mock from Buttons tests. (50588)

Block Editor

• Block Editor: Remove unused 'useIsDimensionsSupportValid' method. (50735)
• Block styles: Remove unused prop from inserter preview component. (50622)

Post Editor

• Edit Post: Unlock useShouldContextualToolbarShow outside of the component. (50612)
• FlatTermSelector: Fix the 'useSelect' missing dependency. (50872)

Site Editor

• Use the keyboard shortcuts package for the title bar. (50873)
• Simplify variation selectors. (50687)
• Unlock private APIs outside of the component. (50534)
• Remove unused 'NavigateToLink' component. (50908)
• Move gutenberg_get_remote_theme_patterns. (50597)

Interactivity API

• Polish experimental navigation block. (50670)

Components

• DropdownMenu: Refactor to TypeScript. (50187)

npm Packages

• chore: Update memize to v2. (50172)

Global Styles

• Global styles revisions: Remove unused private var. (50763)
• Introduce prepend_to_selector() to avoid additional if checks and follow single responsibility principle. (50266)
• Move gutenberg_get_global_styles function. (50596)

Tools

Testing

• Combine frontend navigation Page list block tests into one test to speed up end-to-end tests. (50681)
• Command center: Enable end-to-end tests. (50833)
• Create pages before navigation tests requiring link control to find page results. (50680)
• Enable iframe-inline-styles end-to-end test. (50548)
• Fix coding-standards issues. (50656)
• Fix flaky media inserter drag-and-dropping end-to-end test. (50740)
• Fix flaky template revert end-to-end tests. (50851)
• In CI, verify that PHPunit is actually running. (50442)
• Migrate Cover Block tests to Playwright. (45784)
• Remove redundant calls to disable the Styles welcome guide. (50871)
• Remove unintentionally added test artifact. (50795)
• Revert "Enqueue the registered assets (#50185)". (50537)
• Mobile - end-to-end test - Update code to use the new navigateUp helper. (50736)
• Playwright Utils: Use 'set' to disable the Styles welcome guide. (50852)

Build Tooling

• DateTime: Remove deprecated props (and fix static analysis action in trunk). (50724)
• Update runtime test field in WebPack configuration to support Windows. (50727)
• Removed gutenberg Directory Name Expectation. (50894)
• Reworked run Command Parsing. (50559)

wp-env

• Add t-hamano as codeowner for env package. (50817)
• Check .wp-env.json For Unknown Options. (50642)
• Expanded wp-env Lifecycle Scripts. (50570)
• Fixed wp-env start On Windows. (50895)
• Add @ObliviousHarmony to wp-env codeowners. (50530)

First time contributors

The following PRs were merged by first time contributors:

• @bacoords: Update README.md to include a link to the documentation. (50606)
• @falgunihdesai: Update border and focus style of the Input selector in ColorPicker Component. (50703)
• @kmanijak: Adjust the logic of Post Title edit, so it avoids unnecessary OPTIONS requests. (49839)
• @kutsu123: Add grab cursor style for Block mover drag handle button. (50808)
• @megane9988: Add an outline when the color picker select box is focused. (50609)
• @SaxonF: Update site editor sidebar alignment. (50561)
• @worldomonation: Migrate Cover Block tests to Playwright. (45784)

Contributors

The following contributors merged PRs in this release:

@aaronrobertshaw @afercia @ajlende @andrewserong @antpb @aristath @artemiomorales @bacoords @carolinan @chad1008 @ciampo @dcalhoun @derekblank @ellatrix @fabiankaegy @falgunihdesai @felixarntz @fluiddot @geriux @getdave @glendaviesnz @gziolo @jameskoster @jasmussen @jeryj @jhnstn @johnhooks @juanfra @kevin940726 @kmanijak @kutsu123 @MaggieCabrera @Mamaduka @mboynes @mburridge @megane9988 @michalczaplinski @mirka @n2erjo00 @noahtallen @noisysocks @ntsekouras @oandregal @ObliviousHarmony @ramonjd @richtabor @samnajian @SantosGuillamot @SaxonF @scruffian @shimotmk @SiobhyB @t-hamano @talldan @tyxla @worldomonation @WunderBart @youknowriad