7.0.0 RC1

Features

• Add a new Navigation block (previously available as an experiment)
  • Highlight menu items without defined URL.
  • Prevent error in Firefox when removing the block.
  • Remove background color from the Navigation block and rely on the Group block.
  • Remove the background shadow for the submenus dropdown.
  • Rename "Navigation Menu Item" block to "Link".
  • Remove unnecessary color attributes.
  • Allow addition CSS classes.
  • Drop the “menu” suffix from the block name.
  • Escape special characters in the frontend.
  • Remove from experimental features.
  • Add style variations.

Enhancements

• Use gradient classnames instead of inline styles for the Cover block.
• Inserter: Add keyboard shortcut styling to "/" in the default tip.
• Restore the caret position properly on undo.
• Add keywords to improve the discoverability of the Audio block.
• Show video preview on Cover block inspector panel.

Bug Fixes

• Fix hidden nested images in the content column.
• Fix double border issue in the keyboard shortcuts modal.
• Fix off-centered publish button.
• Fix error when isRTL config is not provided in the block editor settings.
• Fix full width Table block mobile regression.
• A11y: Add a screen reader text label for the Search block.
• Fix text patterns undo after mouse move.
• Fix block drag and drop for the  contributor role.
• Update the link when switching the image used in the Image block.
• Fix php error triggered when gutenberg_register_packages_scripts is run more than once.
• Fix special characters escaping for the post title.
• Fix JavaScript errors triggered when selectors are called before the editor being initialized.
• Fix BaseControl component label when no id is passed.
• Preserve whitespace when converting blocks Preformatted and Paragraph blocks.
• Fix multiple paste issues creating unnecessary empty spaces.

New APIs

• Add a new Card component to @wordpress/components.
• Add label support for the URLInput component.
• Support the isMatch option for the shorcode transforms.

Experiments

• Block Content areas:
  • Add Post Title and Post Content blocks.
  • Add template parts CPT and the theme resolution logic.
• Widgets Screen:
  • Refactor the legacy widgets block to support all blocks.
  • Fix widget areas margins.
  • Add isRTL setting.
• APIs
  • useColors hook: Enhance the contrast checking API and provide access to the color value.
  • Introduce createInterpolateElement to allow translation of complex strings with HTML content.
  • A11y: Refactor the accessibility behavior of the Toolbar component.
• Social Links:
  • Capitalize LinkedIn and GitHub properly.
  • Fix frontend styling.

Documentation

• Add a Backward Compatibility policy document.
• Clarify the npm packages release documentation.
• Add documentation for the @wordpress/env wp-env.json config file.
• Typos and tweaks: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20.

Various

• Refactor the RichText component: Remove the inner Editable component.
• Integrate the Gutenberg Playground into Storybook.
• Increase WordPress minimum supported by the plugin to 5.2.0.
• Refactor the Paragraph block edit function as a functional component.
• Refactor the Cover block edit function as a functional component.
• Add new components to Storybook.
  • RadioControl component.
  • TabPanel component.
  • Popover component.
  • BaseControl component.
  • Tip component.
• Include WordPress eslint plugin in React eslint ruleset in @wordpress/eslint-plugin.
• Block PRs  on mobile unit test failures in Travis.
• Polish the PostSchedule popover styling.
• Fix the API documentation generation tool when spaces are used in folder names.
• Add missing @babel/runtime dependency to the @wordpress/jest-puppeteer-axe.
• Refactor the Layout component to separate the UI from the content.
• Align Dropdown and DropdownMenu components styling.
• Remove max-width style from the Image block.
• Remove the CollegeHumor embed block.
• Add unit tests: 
  • Ensure consecutive edits to the same attribute are considered persistent.
  • Test the core-data undo reducer.

6.9.0

Features

• Support changing the image title attribute in the Image block.

Bugs

• Fix  invalid Pullquote blocks when setting a color from the palette presets.
• Fix the columns left/right full-width margins.
• Prevent fast consecutive updates from triggering blocks reset.
• Fix block movers for floated blocks.
• Fix Radio buttons styling in meta boxes.
• Fix the default image sizes used for featured images displayed in the editor.
• Prevent the unsaved changes warning from popping-up when deleting posts.
• Revert img and iframe styles to block editor container scope.
• Block Merge: guard for undefined attribute definition.

Enhancements

• Inserter: Immediately insert block when only one block type is allowed.
• Update the list of the default available gradients.
• Disable indent/outdent buttons when necessary in the List block.

New APIs

• Add theme support API to define custom gradients presets.
• Mark the AsyncMode data module API as stable.
• Mark the mediaUpload @wordpress/block-editor setting as stable.
• Add a wpenv.json config file support for @wordpress/env.

Various

• Refactor the way HTML is escaped by the RichText component.
• Refactor and simplify the block margins CSS in the editor.
• Use HTTPS git clone in the Gutenberg release tool for more stability.
• Update ExternalLink, BaseControl and FormTokenField components to use the VisuallyHidden component for the screen reader text.
• Add several components to Storybook: 
  • Spinner,
  • Draggable,
  • RangeControl,
  • FontSizePicker,
  • Modal,
  • Snackbar,
  • ToggleControl,
  • ResizableBox.
• Refactor the block-directory search to insert as an Inserter plugin.
• Improve the experimental useColors React hook.
• Upgrade Puppeteer to the last version.
• Update to the last version of npm-package-json-lint.
• i18n: Fix string concatenation in the Verse block example and add translators string.
• Change Detection: Add an e2e test case for post trashing.
• Fix the e2e tests watch command.

Experimental

• Block Content Areas:
  • Support loading block templates from themes.
• Navigation block:
  • Add default frontend styles for the Navigation block.
  • Use RichText for navigation menu item instead of TextControl.
  • Add block navigator to the inspector panel.
  • Use an SVG icon for the color selector.
  • Add a new API for horizontal movers and use it for the navigation block.
  • Add a new Link creation and edition UI and use it for the navigation block.
  • Add an appender to the block navigator.
  • Add a block placeholder.
  • Various fixes and refactorings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
• Add ResponsiveBlockControl component.
• Add initial API for block patterns.

Documentation

• Add an introduction README for Storybook.
• Typos and fixes: 1, 2, 3, 4, 5, 6.

6.9.0 RC1

Features

• Support changing the image title attribute in the Image block.

Bugs

• Fix  invalid Pullquote blocks when setting a color from the palette presets.
• Fix the columns left/right full-width margins.
• Prevent fast consecutive updates from triggering blocks reset.
• Fix block movers for floated blocks.
• Fix Radio buttons styling in meta boxes.
• Fix the default image sizes used for featured images displayed in the editor.
• Prevent the unsaved changes warning from popping-up when deleting posts.
• Revert img and iframe styles to block editor container scope.
• Block Merge: guard for undefined attribute definition.

Enhancements

• Inserter: Immediately insert block when only one block type is allowed.
• Update the list of the default available gradients.
• Disable indent/outdent buttons when necessary in the List block.

New APIs

• Add theme support API to define custom gradients presets.
• Mark the AsyncMode data module API as stable.
• Mark the mediaUpload @wordpress/block-editor setting as stable.
• Add a wpenv.json config file support for @wordpress/env.

Various

• Refactor the way HTML is escaped by the RichText component.
• Refactor and simplify the block margins CSS in the editor.
• Use HTTPS git clone in the Gutenberg release tool for more stability.
• Update ExternalLink, BaseControl and FormTokenField components to use the VisuallyHidden component for the screen reader text.
• Add several components to Storybook: 
  • Spinner,
  • Draggable,
  • RangeControl,
  • FontSizePicker,
  • Modal,
  • Snackbar,
  • ToggleControl,
  • ResizableBox.
• Refactor the block-directory search to insert as an Inserter plugin.
• Improve the experimental useColors React hook.
• Upgrade Puppeteer to the last version.
• Update to the last version of npm-package-json-lint.
• i18n: Fix string concatenation in the Verse block example and add translators string.
• Change Detection: Add an e2e test case for post trashing.
• Fix the e2e tests watch command.

Experimental

• Block Content Areas:
  • Support loading block templates from themes.
• Navigation block:
  • Add default frontend styles for the Navigation block.
  • Use RichText for navigation menu item instead of TextControl.
  • Add block navigator to the inspector panel.
  • Use an SVG icon for the color selector.
  • Add a new API for horizontal movers and use it for the navigation block.
  • Add a new Link creation and edition UI and use it for the navigation block.
  • Add an appender to the block navigator.
  • Add a block placeholder.
  • Various fixes and refactorings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
• Add ResponsiveBlockControl component.
• Add initial API for block patterns.

Documentation

• Add an introduction README for Storybook.
• Typos and fixes: 1, 2, 3, 4, 5, 6.

6.8.0

Features

• Support gradients in Cover block.
• Add a breadcrumb bar to support block hierarchy selection.

Enhancements

• Cover block: change the minimum height input step size to one.
• Allow setting a display name for blocks based on their content in the BlockNavigator.
• Hide the gradients panel if an empty set of gradients is explicitly defined.
• Do not transform list items into paragraphs when deleting first list item and list is not empty.
• Replace inline styles with classnames for the gradient palette.
• Preserve list attributes (start, type and reversed) when pasting or converting HTML to blocks. 

Bugs

• Clear local autosaves after successful saves.
• Fix the columns block width overflow issue when using more than two columns.
• Fix the Link Rel input not showing the saved value of the link rel attribute.
• Fix JavaScript errors triggered when using links without href in HTML mode.
• Move the default list styles to the theme editor styles.
• Fix Invalid import statement for deprecated call in the Modal component.
• Fix a small visual glitch in the Publish button.
• Prevent blank page when using the Media Modal Edit Image "back" button.
• Allow the shortcode transform to apply to all the provided shortcode aliases. 
• Fix JavaScript error triggered when using arrows on an empty URLInput.
• Fix extra margins added to Gallery blocks by list editor styles.
• Fix custom button background color not reflected on reload.
• Preserve List block attributes when splitting into multiple lists. 
• Fix checkbox styles when used in metaboxes.
• Make the FontSizePicker style independent from WordPress core styles.
• Fix overlapping controls in the Inline Image formatting toolbar.
• Fix strikethrough formatting when copy/pasting from Google Docs in Safari.
• Allow media upload post processing for all 5xx REST API responses.

Experiments

• Navigation block:
  • Support color customization.
  • Improve the Link edition UI.
• Block Content Areas:
  • Implement a frontend template loader based on the  wp_template CPT.
  • Add a temporary UI to edit wp_template CPT posts.
  • Add a Site title block.

New APIs

• Add VisuallyHidden component.
• Add @wordpress/base-styles package to share the common variables/mixins used by the WordPress packages.
• Add Platform component to allow writing platform (web, mobile) specific logic.
• Add isInvalidDate prop to DatePicker.
• @wordpress/env improvements:
  • Support custom ports.
  • Support using it for themes.
• Add a new experimental React  hook to support colors in blocks.
• Add a new experimental DimentionControl component.

Various

• Storybook:
  • Add a story for the CheckboxControl component.
  • Add a story for the Dashicon component.
  • Add a story for the ColorPalette component.
  • Add a story for the ColorPicker component.
  • Add a story for the ExternalLink component.

Add knobs to the ColorIndicator Story.

• Several other enhancements to existing stories.
• Linting fixes for Storybook config.
• Fix Lint warnings triggered by JSDoc definitions.
• Reorganize e2e tests specs into three folders: editor, experimental and plugin.
• Cleanup skipped e2e tests.
• Add a link to Storybook from the Gutenberg playground.
• Optimize the @wordpress/compose package to support tree-shaking.
• Code Quality:
  • Refactor the Button block edit function to use a functional component.
  • Change the name of the accumulated variables in reduce functions.
  • Remove wrapper around the Table block cells.
• Fix several issues related to Node 12 becoming LTS.
• Add the Block Inspector to the Gutenberg playground.

Documentation

• Enhance the Git workflow documentation.
• Clarify block naming conventions.
• Tweaks and typos: 1, 2.

6.8.0 RC1

Features

• Support gradients in Cover block.
• Add a breadcrumb bar to support block hierarchy selection.

Enhancements

• Cover block: change the minimum height input step size to one.
• Allow setting a display name for blocks based on their content in the BlockNavigator.
• Hide the gradients panel if an empty set of gradients is explicitly defined.
• Do not transform list items into paragraphs when deleting first list item and list is not empty.
• Replace inline styles with classnames for the gradient palette.
• Preserve list attributes (start, type and reversed) when pasting or converting HTML to blocks. 

Bugs

• Clear local autosaves after successful saves.
• Fix the columns block width overflow issue when using more than two columns.
• Fix the Link Rel input not showing the saved value of the link rel attribute.
• Fix JavaScript errors triggered when using links without href in HTML mode.
• Move the default list styles to the theme editor styles.
• Fix Invalid import statement for deprecated call in the Modal component.
• Fix a small visual glitch in the Publish button.
• Prevent blank page when using the Media Modal Edit Image "back" button.
• Allow the shortcode transform to apply to all the provided shortcode aliases. 
• Fix JavaScript error triggered when using arrows on an empty URLInput.
• Fix extra margins added to Gallery blocks by list editor styles.
• Fix custom button background color not reflected on reload.
• Preserve List block attributes when splitting into multiple lists. 
• Fix checkbox styles when used in metaboxes.
• Make the FontSizePicker style independent from WordPress core styles.
• Fix overlapping controls in the Inline Image formatting toolbar.
• Fix strikethrough formatting when copy/pasting from Google Docs in Safari.
• Allow media upload post processing for all 5xx REST API responses.

Experiments

• Navigation block:
  • Support color customization.
  • Improve the Link edition UI.
• Block Content Areas:
  • Implement a frontend template loader based on the  wp_template CPT.
  • Add a temporary UI to edit wp_template CPT posts.
  • Add a Site title block.

New APIs

• Add VisuallyHidden component.
• Add @wordpress/base-styles package to share the common variables/mixins used by the WordPress packages.
• Add Platform component to allow writing platform (web, mobile) specific logic.
• Add isInvalidDate prop to DatePicker.
• @wordpress/env improvements:
  • Support custom ports.
  • Support using it for themes.
• Add a new experimental React  hook to support colors in blocks.
• Add a new experimental DimentionControl component.

Various

• Storybook:
  • Add a story for the CheckboxControl component.
  • Add a story for the Dashicon component.
  • Add a story for the ColorPalette component.
  • Add a story for the ColorPicker component.
  • Add a story for the ExternalLink component.

Add knobs to the ColorIndicator Story.

• Several other enhancements to existing stories.
• Linting fixes for Storybook config.
• Fix Lint warnings triggered by JSDoc definitions.
• Reorganize e2e tests specs into three folders: editor, experimental and plugin.
• Cleanup skipped e2e tests.
• Add a link to Storybook from the Gutenberg playground.
• Optimize the @wordpress/compose package to support tree-shaking.
• Code Quality:
  • Refactor the Button block edit function to use a functional component.
  • Change the name of the accumulated variables in reduce functions.
  • Remove wrapper around the Table block cells.
• Fix several issues related to Node 12 becoming LTS.
• Add the Block Inspector to the Gutenberg playground.

Documentation

• Enhance the Git workflow documentation.
• Clarify block naming conventions.
• Tweaks and typos: 1, 2.

6.7.0

Features

• Add gradient backgrounds support to the Button block.

Bug Fixes

• i18n : Include the plural version of the “remove block” string.
• Update dropdown menu items to match hover style in other places.
• Smoothly reposition Popovers on scroll.
• Fix margin styles for Gallery and Social links blocks.
• Fix popovers hidden on mobile.
• Ensure sidebar plugins do not get auto-closed when opened on small screens.
• Fix the design of the Checkbox component in IE11.
• Add has-text-color classname to heading block.
• Prevent figure margin reset CSS from being included in the frontend.
• Fix the scaling of the pinned plugins menu icons.
• Fix Heading and paragraph colors not applied inside the cover block.
• Close Nux tips when clicking outside the tip.
• Fix meta attribute source for post types other than post.
• Fix ”Open in New Tab” not being persisted.
• Fix redo behavior and expand test coverage.
• I18n: Fix missing translation for the “All content copied” string.
• Fix the block preview padding in themes with custom backgrounds.
• Fix merging list blocks with indented list items.
• Fix inline image controls display condition.
• Fix clicking the redirect element focuses the inserted paragraph.
• Fix editing meta attributes with multiple set to true.
• Add No Preview Available text to the inserter preview panel.
• Prevent block controls from disappearing when switching the List block type.
• Avoid trailing space at the end of a translatable string.
• Fix left aligned nested blocks.
• Fix the top margin of the RadioControl help text.
• Fix invalid HTML used in the Featured Image panel.
• Make sure that all edits after saving are considered persistent by default.
• Ensure that sidebar is closed on the first visit on small screens.
• Update the columns block example to avoid overlapping issues.
• Remove unnecessary default styles for H2 heading inside Cover blocks.
• Fix Media & Text block alignment in IE11.
• Remove unnecessary padding in the Columns block.
• Fix the Columns block height in IE11.
• Correctly update RichText value after undo.
• Prevent the snackbar link components from hiding on focus.
• Fix block toolbar position in IE11.
• Retry uploading images on failures.

Performance

• Avoid continuously reset browser selection (improve typing performance in iOS).

Enhancements

• Polish FontSize Picker design.
• Use body color for the post publish panel.
• Limit the width and height of the pinnable plugins icons.
• Add a max width to the Search block input.

Experiments

• Menu Navigation block:
• Implement initial state containing top level pages.
• Fix menu alignment.
• Fix the classname in frontend.
• Block Directory
• Change the relative time string.
• Widgets Screen
• Fix the styling of the inspector panel.

Documentation

• Fix @wordpress/data-controls examples.
• Typos and tweaks: 1, 2.

Various

• Introduce the @wordpress/env package, A zero-config, self-contained local WordPress environment for development and testing.
• Add Storybook to develop and showcase UI components:
• Add ButtonGroup component.
• Add ScrollLock component.
• Add Animate component.
• Add Icon and IconButton components.
• Add ClipboardButton component.
• Add ColorIndicator component.
• Remove RichText wrapper and use Popover for the inline toolbar.
• Improve the way the lock file handles local dependencies.
• Refactor ColorPalette by extracting its design.
• Improve E2E test reliability by consuming synchronous data and bailing on save failure.
• Replace the isDismissable prop with isDismissible in the Modal component.
• Add eslint-plugin-jest to the default @wordpress/scripts linting config.
• Update @wordpress/scripts to use the latest version of webpack for build and start commands.
• Cleanup Dashicon component.
• Update the Excerpt help link.
• Release tool: fix wrong package.json used when bumping the stable released version.
• Fix several typos in code and files.
• Update E2E tests to accommodate WP 5.3 Beta 3 changes.
• Define the “sideEffects” property for @WordPress packages.
• Add nested embed e2e test.
• I18N: Always return the translation file prefixed with gutenberg-.
• Use wp.org CDN for images used in block preview.

6.7.0 RC1

Features

• Add gradient backgrounds support to the Button block.

Bug Fixes

• i18n : Include the plural version of the “remove block” string. [1]

• Update dropdown menu items to match hover style in other places. [2] [17]

• Smoothly reposition Popovers on scroll. [3]

• Fix margin styles for Gallery and Social links blocks. [4]

• Fix popovers hidden on mobile. [5]

• Ensure sidebar plugins do not get auto-closed when opened on small screens. [6]

• Fix the design of the Checkbox component in IE11. [7]

• Add has-text-color classname to heading block. [8]

• Prevent figure margin reset CSS from being included in the frontend. [9]

• Fix the scaling of the pinned plugins menu icons. [12]

• Fix Heading and paragraph colors not applied inside the cover block. [13]

• Close Nux tips when clicking outside the tip. [14]

• Fix meta attribute source for post types other than post. [15]

• Fix ”Open in New Tab” not being persisted. [16]

• Fix redo behavior and expand test coverage. [18][30]

• I18n: Fix missing translation for the “All content copied” string. [19]

• Fix the block preview padding in themes with custom backgrounds. [20]

• Fix merging list blocks with indented list items. [21]

• Fix inline image controls display condition. [22]

• Fix clicking the redirect element focuses the inserted paragraph. [23]

• Fix editing meta attributes with multiple set to true. [24]

• Add No Preview Available text to the inserter preview panel. [25]

• Prevent block controls from disappearing when switching the List block type. [26]

• Avoid trailing space at the end of a translatable string. [27]

• Fix left aligned nested blocks. [28]

• Fix the top margin of the RadioControl help text. [32]

• Fix invalid HTML used in the Featured Image panel. [33]

• Make sure that all edits after saving are considered persistent by default. [34]

• Ensure that sidebar is closed on the first visit on small screens. [35]

• Update the columns block example to avoid overlapping issues. [36]

• Remove unnecessary default styles for H2 heading inside Cover blocks. [37]

• Fix Media & Text block alignment in IE11. [38]

• Remove unnecessary padding in the Columns block. [40]

• Fix the Columns block height in IE11. [41]

• Correctly update RichText value after undo. [42]

• Prevent the snackbar link components from hiding on focus. [43]

• Fix block toolbar position in IE11. [44]

Performance

• Avoid continuously reset browser selection (improve typing performance in iOS). [39]

Enhancements

• Polish FontSize Picker design.

• Use body color for the post publish panel.

• Limit the width and height of the pinnable plugins icons.

• Add a max width to the Search block input.

Experiments

• Menu Navigation block:

• Implement initial state containing top level pages.

• Fix menu alignment.

• Fix the classname in frontend.

• Block Directory

• Change the relative time string.

• Widgets Screen

• Fix the styling of the inspector panel.

Documentation

• Fix @wordpress/data-controls examples.

• Typos and tweaks: 1, 2.

Various

• Introduce the @wordpress/env package, A zero-config, self contained local WordPress environment for development and testing.

• Add Storybook to develop and showcase UI components:

• Add ButtonGroup component.

• Add ScrollLock component.

• Add Animate component.

• Add Icon and IconButton components.

• Add ClipboardButton component.

• Add ColorIndicator component.

• Remove RichText wrapper and use Popover for the inline toolbar.

• Improve the way the lock file handles local dependencies.

• Refactor ColorPalette by extracting its design.

• Improve E2E test reliability by consuming synchronous data and bailing on save failure.

• Replace the isDismissable prop with isDismissible in the Modal component.

• Add eslint-plugin-jest to the default @wordpress/scripts linting config. [10]

• Updated to the latest version of webpack for @wordpress/scripts build and start commands. [11]

• Cleanup Dashicon component.

• Update the Excerpt help link.

• Release tool: fix wrong package.json used when bumping the stable released version.

• Fix several typos in code and files.

• Update E2E tests to accommodate WP 5.3 Beta 3 changes. [22]

• Define the “sideEffects” property for @WordPress packages. [29]

• Add nested embed e2e test.

• I18N: Always return the translation file prefixed with gutenberg-.

• Use wp.org CDN for images used in block preview. [45]

6.6.0

Enhancements

• Turn Stack on mobile toggle on by default in the Media & Text block.
• Only show the Inserter help panel in the topbar inserter.
• Use minimum height instead of height for Cover height control label.
• Update the buttons styling to match core.
• Add preview examples for multiple core blocks.

New APIs

• Implement EntityProvider and use it to refactor the meta block attributes.

Experimental

• Introduce the wp_template custom post type to preempt the block content areas work.
• Use the entities store for the widgets screen.

Bugs

• Fix javascript error potentially triggered when using saveEntityRecord action.
• Avoid marking the post as dirty when forcing an undo level (RichText).
• Fix Post Publish Panel overlapping the user profile dropdown menu.
• Fix and align collapsing logic for Save Draft and Saved button states.
• Remove Reusable block name and description from the inserter help panel.
• Fix spacing issues in the inserter panel previews.
• Gallery block: Don't show the caption gradient overlay unless image is selected or a caption is set.
• Gallery block: Fix custom alignment layouts
• Fix dirtiness detection when server-side saving filters are used.
• Remove wrong i18n domain.
• Fix invalid block warning panel.
• Fix various issues in related to the BlockDirectory inserter.
• Cover block: Show Height control only if an image background is selected.
• Fix RichText composition input issues.
• Fix block placeholders spacing after Core inputs updates.
• Fix checkbox design (color and background) after Core updates.
• Fix radio buttons design after Core updates.
• Remove any existing subscriptions before adding a new save metaboxes sub to prevent multiple saves.
• Clear auto-draft titles on save if not changed explicitly.
• Fix block error boundary.
• Fix select elements design in the sidebar after Core updates.
• Allow using space with modifier keys at the beginning of list items.
• Fix the inputs height after Core updates.
• fix conflict between remote and local autosaves.

Performance

• Request the Image block’s metadata only if the block is selected.
• Improve the performance of the block reordering animation in Safari.
• Remove Autocomplete component wrappers.

Various

• Replace registered social links blocks if already registered in Core.
• More stable List block e2e tests.
• Add e2e tests to validate the date picker UI behavior.
• Add e2e tests to validate the local auto-save behavior.
• Mark the social links block as experimental.
• Update the e2e tests to accommodate the new theme.
• Align the version of lodash with WordPress core.
• Add phpcs rule to detect unused variables.
• Simplify Block Selection Reducer.
• Add has-background classes to pullquote and Media & Text blocks for consistency.
• Tidy up button vertical align styles.
• Update browserslist dependency.

Documentation

• Add scripts/styles dependency management documentation.
• Update docs with the example property used for Inserter previews.
• Typos and tweaks: 1, 2, 3, 4, 5.

Mobile

• Add rounded corners on media placeholder and unsupported blocks.
• Fix link editing when the cursor is at the beginning of a link.

6.6.0 RC1

Enhancements

• Turn Stack on mobile toggle on by default in the Media & Text block.
• Only show the Inserter help panel in the topbar inserter.
• Use minimum height instead of height for Cover height control label.
• Update the buttons styling to match core.
• Add preview examples for multiple core blocks.

New APIs

• Implement EntityProvider and use it to refactor the meta block attributes.

Experimental

• Introduce the wp_template custom post type to preempt the block content areas work.
• Use the entities store for the widgets screen.

Bugs

• Fix javascript error potentially triggered when using saveEntityRecord action.
• Avoid marking the post as dirty when forcing an undo level (RichText).
• Fix Post Publish Panel overlapping the user profile dropdown menu.
• Fix and align collapsing logic for Save Draft and Saved button states.
• Remove Reusable block name and description from the inserter help panel.
• Fix spacing issues in the inserter panel previews.
• Gallery block: Don't show the caption gradient overlay unless image is selected or a caption is set.
• Gallery block: Fix custom alignment layouts
• Fix dirtiness detection when server-side saving filters are used.
• Remove wrong i18n domain.
• Fix invalid block warning panel.
• Fix various issues in related to the BlockDirectory inserter.
• Cover block: Show Height control only if an image background is selected.
• Fix RichText composition input issues.
• Fix block placeholders spacing after Core inputs updates.
• Fix checkbox design (color and background) after Core updates.
• Fix radio buttons design after Core updates.
• Remove any existing subscriptions before adding a new save metaboxes sub to prevent multiple saves.
• Clear auto-draft titles on save if not changed explicitly.
• Fix block error boundary.
• Fix select elements design in the sidebar after Core updates.
• Allow using space with modifier keys at the beginning of list items.
• Fix the inputs height after Core updates.
• fix conflict between remote and local autosaves.

Performance

• Request the Image block’s metadata only if the block is selected.
• Improve the performance of the block reordering animation in Safari.
• Remove Autocomplete component wrappers.

Various

• Replace registered social links blocks if already registered in Core.
• More stable List block e2e tests.
• Add e2e tests to validate the date picker UI behavior.
• Add e2e tests to validate the local auto-save behavior.
• Mark the social links block as experimental.
• Update the e2e tests to accommodate the new theme.
• Align the version of lodash with WordPress core.
• Add phpcs rule to detect unused variables.
• Simplify Block Selection Reducer.
• Add has-background classes to pullquote and Media & Text blocks for consistency.
• Tidy up button vertical align styles.
• Update browserslist dependency.

Documentation

• Add scripts/styles dependency management documentation.
• Update docs with the example property used for Inserter previews.
• Typos and tweaks: 1, 2, 3, 4, 5.

Mobile

• Add rounded corners on media placeholder and unsupported blocks.
• Fix link editing when the cursor is at the beginning of a link.

6.5.0

Features

• Add a new Social links block.
• Support border radius changes in the Button block.
• Support adding a caption to the Gallery block.
• Support local autosaves.

Enhancements

• Disable the click-through behavior in desktop.
• Update the labels width to fit their content.
• Avoid displaying console warnings when blocks are upgraded using deprecated versions.
• Reduce the padding around the in-between block inserter.
• Improve the design of the block movers.
• Align the Gallery block image controls with the block movers design.
• Remove child blocks from the block manager.
• Remove duplicated "Enable" label from the options panel.
• Use sentence case for all tooltips.
• Remove the forced gray scale from the category icons.
• Move the alignment controls to toolbar of the Heading block.
• Use the featured image frame in the Media modal.

Bug Fixes

• Update the Post Schedule label to correctly reflect the date and time display settings.
• Clean up the block toolbar position for wide full blocks.
• Fix the cropped focus indicator in the block inserter.
• Browser incompatibilities:
  • Fallback to setTimeout in RichText if no requestIdleCallback is not supported.
  • Block toolbar fixes for IE11.
  • Fix Backspace usage in RichText for IE11.
• Prevent clicking the next/previous month in the Post Schedule popover from closing it.
• Prevent the private posts from triggering the unsaved changes warnings after saving.
• Fix the usage of the useReducedMotion hook in Node.js context.
• A11y:
  • Use darker form field borders.
  • Fix the modal escape key propagation.
  • Move focus back from the Modal to the More Menu when it was used to open the Modal.
• Trim leading and trailing whitespaces when inserting links.
• Prevent using the paragraph block when pasting unformatted text into RichText.
• Fix styling of classic block's block controls.
• Fix the showing/hiding logic of the Group menu item in the block settings menu.
• Fix invalid HTML nesting of buttons.
• Fix React warning when using withFocusReturn Higher-order component.
• Fix lengthy content cuts in the Cover block.
• Disable multi-selection when resizing.
• Fix the permalink UI in RTL languages.
• Fix multiple issues related to the reusable blocks editing/previewing UI.
• Remove filter that unsets auto-draft titles.
• Fix the Move to trash button redirection.
• Prevent undo/redo history cleaning on autosaves.
• Add i18n support for title Content Blocks string.
• Add missing extra classnames to the Column block.
• Fix JavaScript error triggered when using a multi-line RichText.
• Fix RichText focus related issues.
• Fix undo levels inconsistencies.
• Fix multiple post meta fields edits.
• Fix selecting custom colors in RTL languages.

Experiments

• Add one-click search and install blocks from the block directory to the inserter.
• Refactor the Navigation block to be a dynamic block.
• Add a block navigator to the Navigation block.
• Only show the customizer block based widgets if the experimental widget screen is enabled.

APIs

• Add a disableDropZone prop for MediaPlaceholder component.
• Add post autosave locking.
• PluginPrePublishPanel and PluginPostPublishPanel support icon prop and inherits from registerPlugin.
• Allow disabling the Post Status settings panel.
• Restore the keepPlaceholderOnFocus RichText prop.

Various

• Upgrade React and React DOM to 16.9.0.
• Add TypeScript JSDoc linting to the @wordpress/url package.
• Run npm audit to fix the reported vulnerabilities.
• Switch the local environment to an environment based on the Core setup.
• Set a constant namespace for module sourcemaps.
• Refactor the loading animation to rely on the Animate component.
• Code improvements to block PHP files.
• Enable the duplicate style property linting rule.
• Update Husky & Lint-staged to the latest versions.
• Restore the usage of the latest npm version in CI.
• Add ESLint as peer dependency to eslint-plugin.
• Conditionally include the block styles functionality to avoid conflicts with Core.
• Add missing deprecated setFocusedElement prop to the RichText component.
• Support generating assets in PHP format in the webpack dependency extraction plugin.

Documentation

• Update the reviews and merging documentation.
• Fix type docs for the Notices package.
• Add a link to the fixtures tests document in the Testing Overview.
• Adds documentation for the onClose prop of MediaUpload.
• Tweaks and typos: 1, 2, 3, 4, 5, 6, 7, 8.