5.8.0

Features

• Support changing the text color in the Heading block.
• Support reordering gallery images.
• Complete the initial version of the widgets screen POC
  • Add an experimental endpoint to fetch the block-based widget areas.
  • Connect the screen to the widget areas endpoint.
  • Load the widget scripts.
  • Load colors, font sizes and file upload settings in the widgets screen.
  • Render the block based widget areas in the frontend.

Enhancements

• Clarify the label of the custom classname inspector panel.
• Update Calendar block icon for better alignment with the Archives block icon.
• Add width constraints to the Media & Text block.
• Allow dropping blocks into container blocks using the new block appender.
• Provide default margins for the Latest Posts block excerpts.

Bug Fixes

• Support block style variations for container blocks.
• A11y
  • Use semantic markup for the document outline.
  • Fix the reading order of the keyboard shortcuts modal.
  • Add a visible help text to the tags input.
  • Update the icon of the Heading block.
  • Move the View Posts anchor out of the toolbar section in the header.
  • Close the block settings menu after removing the block.
• Fix the blurriness of the disabled block switcher icons.
• Fix missing template validation warning.
• Fix several content spitting issues and make the onSplit prop stable.
• Allow the Shortcode block field to expand automatically.
• Left pad the DateTimePicker minutes input.
• Fix the frontend classname used for the Latest Posts block excerpts.
• Fix error happening when deleting the last block if the paragraph block is unregistered.
• Fix focus jumps when typing in meta block fields.

Documentation

• Improve the Slot/Fill documentation.
• Document the Github teams used in the repository.
• Document the icon prop for the MediaPlaceholder component.
• Update the changelogs maintenance documentation.
• Clarify the save function documentation to discourage side effects.
• Clarify the block attributes documentation.
• Replace @link with @see in JSDocs.
• Fixes and tweaks to the API docs generation tool.
• Typos and tweaks: 1, 2, 3, 4, 5, 6, 7, 8.

Various

• Add a new editor setting to allow disabling the code editor.
• Add a new @wordpress/data-controls package.
• Add an automation tool to simplify the Gutenberg release process.
• Support the all hook in non-production environments.
• Expose hasResolver property on the data module selectors.
• Support multiple pattern replacement for the custom-templated-path-webpack-plugin package.
• Update node-sass dependency to support the latest Node.js version.
• Fix React warning showing when loading the editor (Fill component).
• Fix React warning message when using the Image block.
• Refactor the popover component using React Hooks.
• Remove WebpackRTLPlugin usage.
• Remove an outdated chrome fix for iframes drag and drop.
• Skip Chromium download in Travis by default.
• Rewrite Node.js packages to use CommonJS exports.
• Speed up Docker and e2e tests setup Travis.
• Extracted the deprecated block version declarations to their own files.
• Add missing file from the published @wordpress/dependency-extraction-webpack-plugin-files package.
• Upgrade package dependencies: Lerna and Webpack Bundle Analyzer.

Mobile

• Add the Quote block.
• Make the Video block publicly available.
• Fix bug when merging blocks.
• Improve the UI/UX of the different media blocks.
• Support nested lists.
• Fix Image block with an undefined url.
• Support rich captions in the Image block.
• Improve screen reader support on BottomSheet’s cells.
• Fix several focus related bugs.
• Fix undo related issue.
• Update onSplit method on the native RichText component to the latest version.
• Move the BottomSheet component to the @wordpress/components package.
• Handle the iOS z-gesture to exit modals and block selection.
• Implement the invalid block content UI.

5.8.0 RC1

Features

• Support changing the text color in the Heading block.
• Support reordering gallery images.
• Complete the initial version of the widgets screen POC
  • Add an experimental endpoint to fetch the block-based widget areas.
  • Connect the screen to the widget areas endpoint.
  • Load the widget scripts.
  • Load colors, font sizes and file upload settings in the widgets screen.
  • Render the block based widget areas in the frontend.

Enhancements

• Clarify the label of the custom classname inspector panel.
• Update Calendar block icon for better alignment with the Archives block icon.
• Add width constraints to the Media & Text block.
• Allow dropping blocks into container blocks using the new block appender.
• Provide default margins for the Latest Posts block excerpts.

Bug Fixes

• Support block style variations for container blocks.
• A11y
  • Use semantic markup for the document outline.
  • Fix the reading order of the keyboard shortcuts modal.
  • Add a visible help text to the tags input.
  • Update the icon of the Heading block.
  • Move the View Posts anchor out of the toolbar section in the header.
  • Close the block settings menu after removing the block.
• Fix the blurriness of the disabled block switcher icons.
• Fix missing template validation warning.
• Fix several content spitting issues and make the onSplit prop stable.
• Allow the Shortcode block field to expand automatically.
• Left pad the DateTimePicker minutes input.
• Fix the frontend classname used for the Latest Posts block excerpts.
• Fix error happening when deleting the last block if the paragraph block is unregistered.
• Fix focus jumps when typing in meta block fields.

Documentation

• Improve the Slot/Fill documentation.
• Document the Github teams used in the repository.
• Document the icon prop for the MediaPlaceholder component.
• Update the changelogs maintenance documentation.
• Clarify the save function documentation to discourage side effects.
• Clarify the block attributes documentation.
• Replace @link with @see in JSDocs.
• Fixes and tweaks to the API docs generation tool.
• Typos and tweaks: 1, 2, 3, 4, 5, 6, 7, 8.

Various

• Add a new editor setting to allow disabling the code editor.
• Add a new @wordpress/data-controls package.
• Add an automation tool to simplify the Gutenberg release process.
• Support the all hook in non-production environments.
• Expose hasResolver property on the data module selectors.
• Support multiple pattern replacement for the custom-templated-path-webpack-plugin package.
• Update node-sass dependency to support the latest Node.js version.
• Fix React warning showing when loading the editor (Fill component).
• Fix React warning message when using the Image block.
• Refactor the popover component using React Hooks.
• Remove WebpackRTLPlugin usage.
• Remove an outdated chrome fix for iframes drag and drop.
• Skip Chromium download in Travis by default.
• Rewrite Node.js packages to use CommonJS exports.
• Speed up Docker and e2e tests setup Travis.
• Extracted the deprecated block version declarations to their own files.
• Add missing file from the published @wordpress/dependency-extraction-webpack-plugin-files package.
• Upgrade package dependencies: Lerna and Webpack Bundle Analyzer.

Mobile

• Add the Quote block.
• Make the Video block publicly available.
• Fix bug when merging blocks.
• Improve the UI/UX of the different media blocks.
• Support nested lists.
• Fix Image block with an undefined url.
• Support rich captions in the Image block.
• Improve screen reader support on BottomSheet’s cells.
• Fix several focus related bugs.
• Fix undo related issue.
• Update onSplit method on the native RichText component to the latest version.
• Move the BottomSheet component to the @wordpress/components package.
• Handle the iOS z-gesture to exit modals and block selection.
• Implement the invalid block content UI.

5.7.0

Changelog

Features

• Support setting a width to the column block.
• Support showing Post Content or excerpt in the Latest Posts block.
• Support headers and footers in the Table block.

Enhancement

• Improve the UX of the Group block by using the individual block appender.
• Support updating images using Drag & Drop.
• Clarify the name of the inline code format.
• Add a usability warning when audio/video autoplay is applied.
• Replace the Page Break block icon with Material version.

Bug Fixes

• A11y:
  • Fix focal point picker input labels.
  • Add role to the copy all content menu item.
  • Add focus style to the document outline panel.
  • Update the save indicator contrast to pass AA.
  • Fix The tabbing order in the Gallery Block.
  • Improve the contrast of the button focus styles.
  • Fixed focus state of pressed AM/PM buttons.
  • Fix the URLInput aria properties.
  • Avoid showing pre-publish panel buttons as links.
  • Fix the focus state of the links shown as buttons.
• Fix RTL keyboard interactions.
• Fix updates to RichText formats not being reflected in the UI synchronously.
• Fix extra line breaks added when pasting from Google Docs.
• Fix copy, paste JavaScript errors in paragraph blocks with locking enabled.
• Fix format buttons incorrectly toggled on RichText blur.
• Preserve the caret’s horizontal position when navigating blocks.
• Case-insensitive search for existing categories.
• Prevent the Code block from rendering embeds or shortcodes.
• Fix the SandBox component usage outside the WP-admin context.
• Fix the  Cover block’s deprecated version attributes.
• Fix the webpack dependency plugin: filename function handling.
• Support watching block.json changes in our build tool.
• Fix ServerSideRender remaining in loading state when nothing is rendered.
• Fix the server-side registered blocks in the widgets screen.
• Show the block movers in the widgets screen.
• Decode the HTML entities in the post author selector.
• Fix inconsistent heading sizes between the classic and the heading blocks.
• Add check for author in post data before meta boxes save request submission.
• Allow blocks drag & drop if locking is set to "insert".
• Fix Youtube embed styles when used multiple times in a post.
• Proxy the code/block-editor replaceBlock action in the core/editor package.
• Use block-editor instead of editor in cover block.
• Fix block showing an error in Safari when focused.
• Fix small visual error in the active state of the formatting buttons.
• Fix the pinned plugins buttons styles when toggled.
• Set caret position correctly when merging blocks using the Delete key.

Documentation

• Clarify best practices pertaining to Color Palette values.
• Use Block Editor instead of Gutenberg when appropriate in the Handbook.
• Omit docblocks with private tag in the API Docs generation.
• Update docs for selectors & actions moved to block-editor.
• Update i18n docs to use make-json command from wp-cli.
• Consolidate doc generation tools.
• Fix next/previous links issue.
• Webpack dependency plugin: Document unsupported multiple instances.
• Add a DevHub manifest file to allow synchronizing the documentation to the DevHub.
• Typos and tweaks: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Various

• Support and use the shorthand Fragment syntax.
• Update to Babel 7.4 and core-js 3.
• Upgrade simple-html-tokenizer dependency.
• Pass individual files as arguments from watch to build script.
• Automate the scripts dependencies generation.
• Clean DropZone component’s unused state.
• remove __unstablePositionedAtSelection component.
• Refactor core/edit-post INIT effect to use action-generators and controls.
• Improve eslint disable comments.
• Fix NaN warning when initializing the FocalPointPicker component.
• Export React.memo in the @wordpress/element package.
• Improve the specificity of the custom colors styles.
• Preload the autosaves endpoint to avoid request when loading the editor.
• A11y: Add support for Axe verification in e2e tests.
• Refactor the File block to use the block.json syntax.
• Remove redundant duplicated reducers.
• Add integration tests for blocks with deprecations.
• Allow non-production env in wp-scripts build.
• Use React Hooks in the BlockListBlock component.
• Add an e2e test for custom taxonomies.
• Fix intermittent failures on block transforms tests.
• Remove componentWillReceiveProps usage from ColorPicker.
• Add an experimental CPT to be used in the block based widgets screen.
• Split JavaScript CI tasks to individual jobs.
• Remove unnecessary aria-label from the block inserter lis...

5.7.0-rc.1

Changelog

Features

• Support setting a width to the column block.
• Support showing Post Content or excerpt in the Latest Posts block.
• Support headers and footers in the Table block.

Enhancement

• Improve the UX of the Group block by using the individual block appender.
• Support updating images using Drag & Drop.
• Clarify the name of the inline code format.
• Add a usability warning when audio/video autoplay is applied.
• Replace the Page Break block icon with Material version.

Bug Fixes

• A11y:
  • Fix focal point picker input labels.
  • Add role to the copy all content menu item.
  • Add focus style to the document outline panel.
  • Update the save indicator contrast to pass AA.
  • Fix The tabbing order in the Gallery Block.
  • Improve the contrast of the button focus styles.
  • Fixed focus state of pressed AM/PM buttons.
  • Fix the URLInput aria properties.
  • Avoid showing pre-publish panel buttons as links.
  • Fix the focus state of the links shown as buttons.
• Fix RTL keyboard interactions.
• Fix updates to RichText formats not being reflected in the UI synchronously.
• Fix extra line breaks added when pasting from Google Docs.
• Fix copy, paste JavaScript errors in paragraph blocks with locking enabled.
• Fix format buttons incorrectly toggled on RichText blur.
• Preserve the caret’s horizontal position when navigating blocks.
• Case-insensitive search for existing categories.
• Prevent the Code block from rendering embeds or shortcodes.
• Fix the SandBox component usage outside the WP-admin context.
• Fix the  Cover block’s deprecated version attributes.
• Fix the webpack dependency plugin: filename function handling.
• Support watching block.json changes in our build tool.
• Fix ServerSideRender remaining in loading state when nothing is rendered.
• Fix the server-side registered blocks in the widgets screen.
• Show the block movers in the widgets screen.
• Decode the HTML entities in the post author selector.
• Fix inconsistent heading sizes between the classic and the heading blocks.
• Add check for author in post data before meta boxes save request submission.
• Allow blocks drag & drop if locking is set to "insert".
• Fix Youtube embed styles when used multiple times in a post.
• Proxy the code/block-editor replaceBlock action in the core/editor package.
• Use block-editor instead of editor in cover block.
• Fix block showing an error in Safari when focused.
• Fix small visual error in the active state of the formatting buttons.
• Fix the pinned plugins buttons styles when toggled.
• Set caret position correctly when merging blocks using the Delete key.

Documentation

• Clarify best practices pertaining to Color Palette values.
• Use Block Editor instead of Gutenberg when appropriate in the Handbook.
• Omit docblocks with private tag in the API Docs generation.
• Update docs for selectors & actions moved to block-editor.
• Update i18n docs to use make-json command from wp-cli.
• Consolidate doc generation tools.
• Fix next/previous links issue.
• Webpack dependency plugin: Document unsupported multiple instances.
• Add a DevHub manifest file to allow synchronizing the documentation to the DevHub.
• Typos and tweaks: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Various

• Support and use the shorthand Fragment syntax.
• Update to Babel 7.4 and core-js 3.
• Upgrade simple-html-tokenizer dependency.
• Pass individual files as arguments from watch to build script.
• Automate the scripts dependencies generation.
• Clean DropZone component’s unused state.
• remove __unstablePositionedAtSelection component.
• Refactor core/edit-post INIT effect to use action-generators and controls.
• Improve eslint disable comments.
• Fix NaN warning when initializing the FocalPointPicker component.
• Export React.memo in the @wordpress/element package.
• Improve the specificity of the custom colors styles.
• Preload the autosaves endpoint to avoid request when loading the editor.
• A11y: Add support for Axe verification in e2e tests.
• Refactor the File block to use the block.json syntax.
• Remove redundant duplicated reducers.
• Add integration tests for blocks with deprecations.
• Allow non-production env in wp-scripts build.
• Use React Hooks in the BlockListBlock component.
• Add an e2e test for custom taxonomies.
• Fix intermittent failures on block transforms tests.
• Remove componentWillReceiveProps usage from ColorPicker.
• Add an experimental CPT to be used in the block based widgets screen.
• Split JavaScript CI tasks to individual jobs.
• Remove unnecessary aria-label from the block inserter lis...

5.6.1

Changelog

Miscellaneous

• Republish Gutenberg 5.6.0.

5.6.0

Changelog

Enhancements

• Improve focus state for button block.
• Reduce specificity of block styles to make it easier for themes to style the editor.
• Optimize data subscribers to avoid unnecessary work on each editor change.
• Avoid overlapping block breadcrumb when block movers are visible for full- and wide-aligned blocks.
• Preload user permissions for reusable blocks to avoid UI flickering for block settings menu options.
• Remove unnecessary bottom padding for nested lists.
• Restore block movers to focus mode.
• Improve display of categories list panel.

Bug Fixes

• Restore block movers to full- and wide-aligned blocks.
• Always show drag handles for nested blocks, even when only a single block exists.
• Improve HTML output for formatted text.
• Fix an error preventing registerFormatType to be called wrongly indicated as duplicate.
• Resolve problematic post lock release behavior when leaving the editor when using newer versions of Chrome.
• Resolve an issue to detect autosave presence at editor load in considering saveability.
• Resolve a typo which could interfere with audio shortcode transforms.
• Apply RichText attributes correctly to resolve an issue with registerFormatType.
• Preserve attributes of a multi-line classic block paragraph.
• Resolve an issue for Windows and Linux development mode due to a access key safeguard.

Various

• Refactor a number of core blocks toward better interoperability with the Blocks RFC: [1], [2], [3], [4].
• Move selection state for RichText components to the block editor store, to enable future work to resolve or improve selection behavior.
• Change the behavior of reusable blocks autocomplete to fetch upon input, improving reliability of tests and avoiding unnecessary network requests.
• Allow development mode constant to be redefined by plugins.
• Improve reliability of e2e tests: [1], [2], [3].
• Avoid running files contained in the git subfolder as tests.
• Resolve an issue with e2e errors related to dependencies updates.
• Add a new ESLint rule to enforce accessible use of BaseControl.
• Remove redundant CSS styles.
• Add e2e tests for dynamic allowed blocks, transforms from media to embed block, explicit persistence undo regression.
• Add a new wpDataSelect e2e test utility.
• Include a React hooks ESLint configuration.
• Add a new Webpack plugin to help externalize and extract script dependencies (not yet published).

Documentation

• Include auto-generated documentation for core data module actions and selectors.
• Update contributing documentation to extract detailed sections to their own documents.
• Document the withGlobalEvents higher-order component creator.
• Add related resources for BlockEditor components.
• Clarify requirements for e2e-test-utils package.
• Exclude private, experimental, and unstable APIs from auto-generated data documentation.
• Include missing DropZone component props in documentation.
• Mention component stylesheets in usage instructions.
• Update copy/paste support list to reflect paste support of images from Microsoft Word and Libre/Open Office.
• Add missing "Code is Poetry" footers.
• Improve wording of JavaScript Tutorial document.
• Improve Travis build performance by expanding containers for e2e tests.

Mobile

• Refine transitions for bottom sheets.
• Extract a HorizontalRule component for use in a cross-platform separator block.
• Fix an error with changing list types.
• Avoid setting caret when rich-text text will be trimmed.
• Fix title not focusing.
• Improve post title accessibility.
• Improve image block accessibility for deselected, and selected states.
• Add accessibility label for unselected paragraph.
• Fix history stack when not empty on a fresh start of the editor.
• Improve Heading block accessibility.
• Make accessibility string properly localizable.
• Update string concatenation for accessibility labels.

5.6.0-rc.1

Changelog

Enhancements

• Improve focus state for button block.
• Reduce specificity of block styles to make it easier for themes to style the editor.
• Optimize data subscribers to avoid unnecessary work on each editor change.
• Avoid overlapping block breadcrumb when block movers are visible for full- and wide-aligned blocks.
• Preload user permissions for reusable blocks to avoid UI flickering for block settings menu options.
• Remove unnecessary bottom padding for nested lists.
• Restore block movers to focus mode.
• Improve display of categories list panel.

Bug Fixes

• Restore block movers to full- and wide-aligned blocks.
• Always show drag handles for nested blocks, even when only a single block exists.
• Improve HTML output for formatted text.
• Fix an error preventing registerFormatType to be called wrongly indicated as duplicate.
• Resolve problematic post lock release behavior when leaving the editor when using newer versions of Chrome.
• Resolve an issue to detect autosave presence at editor load in considering saveability.
• Resolve a typo which could interfere with audio shortcode transforms.
• Apply RichText attributes correctly to resolve an issue with registerFormatType.
• Preserve attributes of a multi-line classic block paragraph.
• Resolve an issue for Windows and Linux development mode due to a access key safeguard.

Various

• Refactor a number of core blocks toward better interoperability with the Blocks RFC: [1], [2], [3], [4].
• Move selection state for RichText components to the block editor store, to enable future work to resolve or improve selection behavior.
• Change the behavior of reusable blocks autocomplete to fetch upon input, improving reliability of tests and avoiding unnecessary network requests.
• Allow development mode constant to be redefined by plugins.
• Improve reliability of e2e tests: [1], [2], [3].
• Avoid running files contained in the git subfolder as tests.
• Resolve an issue with e2e errors related to dependencies updates.
• Add a new ESLint rule to enforce accessible use of BaseControl.
• Remove redundant CSS styles.
• Add e2e tests for dynamic allowed blocks, transforms from media to embed block, explicit persistence undo regression.
• Add a new wpDataSelect e2e test utility.
• Include a React hooks ESLint configuration.
• Add a new Webpack plugin to help externalize and extract script dependencies (not yet published).

Documentation

• Include auto-generated documentation for core data module actions and selectors.
• Update contributing documentation to extract detailed sections to their own documents.
• Document the withGlobalEvents higher-order component creator.
• Add related resources for BlockEditor components.
• Clarify requirements for e2e-test-utils package.
• Exclude private, experimental, and unstable APIs from auto-generated data documentation.
• Include missing DropZone component props in documentation.
• Mention component stylesheets in usage instructions.
• Update copy/paste support list to reflect paste support of images from Microsoft Word and Libre/Open Office.
• Add missing "Code is Poetry" footers.
• Improve wording of JavaScript Tutorial document.
• Improve Travis build performance by expanding containers for e2e tests.

Mobile

• Refine transitions for bottom sheets.
• Extract a HorizontalRule component for use in a cross-platform separator block.
• Fix an error with changing list types.
• Avoid setting caret when rich-text text will be trimmed.
• Fix title not focusing.
• Improve post title accessibility.
• Improve image block accessibility for deselected, and selected states.
• Add accessibility label for unselected paragraph.
• Fix history stack when not empty on a fresh start of the editor.
• Improve Heading block accessibility.
• Make accessibility string properly localizable.
• Update string concatenation for accessibility labels.

5.5.0

Changelog

Features

• Add a new Group block.
• Add vertical alignment support to the Media & Text block.
• Add the image fill option to the Media & Text block.

Enhancements

• Improvements to the Image Block flows.
• Automatically add mailto: to email addresses when linking.
• Add visual handles for side resizers for various blocks.
• Improve the performance of the annotations by avoiding excessive memoization.
• Announce the color accessibility issues to screen readers.
• Add enum block attributes validation to browser block parser.
• Use a consistent grey background in the Shortcode block.
• Improve accessibility of video block select poster image.
• Respect prefers-reduced-motion for fixed backgrounds in Cover block.
• Prevent ArrowLeft key press in multi-line selection from prematurely triggering multi-selection.

Bug Fixes

• Avoid keeping the RichText value in cache indefinitely.
• Fix the post title input borders in the code editor.
• Fix the block restrictions to insert, replace or move blocks.
• Select gallery images on focus.
• Fix removing gallery images on delete/backspace key press.
• Fix small visual regression in the block autocompete popover.
• Fix the data module resolver resolution status.
• Avoid saving metaboxes when previewing changes.
• Fix selecting the separator block.
• Fix displaying the color palette tooltips on hover.
• Fix Firefox/NVDA bug not announcing the toggle settings button.
• Fix arrow navigation in paragraph blocks with backgrounds.
• Fix the columns block click to select.
• Fix post dirtiness after fetching reusable blocks.
• Fix the hover and focus styles for buttons with the isBusy prop.
• Remove the box shadow from the side inserter button.
• Changing the region navigation shortcuts to avoid conflicts.
• Fix space insertion in the Button block in Firefox.
• Prevent the link popover from animating constantly as we type. 
• Fix the warning triggered by clearing the height of the spacer block.
• Fix undo behavior after fresh post loading.

Documentation

• Add design documentation to the Modal component.
• Clarify the CSS naming coding guidelines.
• Add InspectorControls usage example.
• Tweaks and typos: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.

Various

• Bootstrap the design of the new widgets screen (non functional yet).
• Reorganization of the block-library code base:
  • Use a babel plugin to load block.json files.
  • Introduce block.json metadata for all client side blocks.
  • Move the edit functions and the icons to separate files.
  • Move the transforms and save functions to separate files.
• Add forwardRef support to the PlainText component.
• Support Button Block Appender in the InnerBlocks component.
• Unset the focal point attributes from the Cover block if not needed.
• Consistently return promises from the data module action calls.
• Remove obsolete CSS currentColor usage.
• Improve the e2e test CLI arguments and docs.
• Improve the e2e test login stability on MacOS.
• Remove is-plain-obj package dependency.
• Remove invalid urls and ids from media test fixtures.
• Remove the deprecated Gutenberg plugin functions slated for 5.4 and 5.5.
• remove or rename undocumented RichText package functions and constants.
• Adjust paragraph block spacing to use standardised variables.
• Allow spaces in file paths for package build process. 
• Update pre-commit to check modified files only.
• Improve the performance of the webpack build configuration.
• Update dependencies with known vulnerabilities.
• Fix typo in variable names.

Mobile

• Accessibility improvements to the Button component.
• Enhance the unsupported block type. 
• Fix image upload progress not being displayed consistently.
• Support copy/pasting images.
• Add the list block.
• Visual refinements for the native nextpage block.
• Fix importing the column block.
• Remove DOM logic from the list block toolbar.
• Put the caret at the end of the text field after merging blocks.
• Fix caret position after inline paste.

5.5.0-rc.1

Changelog

Features

• Add a new Group block.
• Add vertical alignment support to the Media & Text block.
• Add the image fill option to the Media & Text block.

Enhancements

• Improvements to the Image Block flows.
• Automatically add mailto: to email addresses when linking.
• Add visual handles for side resizers for various blocks.
• Improve the performance of the annotations by avoiding excessive memoization.
• Announce the color accessibility issues to screen readers.
• Add enum block attributes validation to browser block parser.
• Use a consistent grey background in the Shortcode block.
• Improve accessibility of video block select poster image.
• Respect prefers-reduced-motion for fixed backgrounds in Cover block.
• Prevent ArrowLeft key press in multi-line selection from prematurely triggering multi-selection.

Bug Fixes

• Avoid keeping the RichText value in cache indefinitely.
• Fix the post title input borders in the code editor.
• Fix the block restrictions to insert, replace or move blocks.
• Select gallery images on focus.
• Fix removing gallery images on delete/backspace key press.
• Fix small visual regression in the block autocompete popover.
• Fix the data module resolver resolution status.
• Avoid saving metaboxes when previewing changes.
• Fix selecting the separator block.
• Fix displaying the color palette tooltips on hover.
• Fix Firefox/NVDA bug not announcing the toggle settings button.
• Fix arrow navigation in paragraph blocks with backgrounds.
• Fix the columns block click to select.
• Fix post dirtiness after fetching reusable blocks.
• Fix the hover and focus styles for buttons with the isBusy prop.
• Remove the box shadow from the side inserter button.
• Changing the region navigation shortcuts to avoid conflicts.
• Fix space insertion in the Button block in Firefox.
• Prevent the link popover from animating constantly as we type. 
• Fix the warning triggered by clearing the height of the spacer block.
• Fix undo behavior after fresh post loading.

Documentation

• Add design documentation to the Modal component.
• Clarify the CSS naming coding guidelines.
• Add InspectorControls usage example.
• Tweaks and typos: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.

Various

• Bootstrap the design of the new widgets screen (non functional yet).
• Reorganization of the block-library code base:
  • Use a babel plugin to load block.json files.
  • Introduce block.json metadata for all client side blocks.
  • Move the edit functions and the icons to separate files.
  • Move the transforms and save functions to separate files.
• Add forwardRef support to the PlainText component.
• Support Button Block Appender in the InnerBlocks component.
• Unset the focal point attributes from the Cover block if not needed.
• Consistently return promises from the data module action calls.
• Remove obsolete CSS currentColor usage.
• Improve the e2e test CLI arguments and docs.
• Improve the e2e test login stability on MacOS.
• Remove is-plain-obj package dependency.
• Remove invalid urls and ids from media test fixtures.
• Remove the deprecated Gutenberg plugin functions slated for 5.4 and 5.5.
• remove or rename undocumented RichText package functions and constants.
• Adjust paragraph block spacing to use standardised variables.
• Allow spaces in file paths for package build process. 
• Update pre-commit to check modified files only.
• Improve the performance of the webpack build configuration.
• Update dependencies with known vulnerabilities.
• Fix typo in variable names.

Mobile

• Accessibility improvements to the Button component.
• Enhance the unsupported block type. 
• Fix image upload progress not being displayed consistently.
• Support copy/pasting images.
• Add the list block.
• Visual refinements for the native nextpage block.
• Fix importing the column block.
• Remove DOM logic from the list block toolbar.
• Put the caret at the end of the text field after merging blocks.
• Fix caret position after inline paste.

5.4.0

Changelog

Features

• Add vertical alignment support for the columns block.
• Add playsinline support for the video block.

Enhancements

• Add the Media Library button to the gallery block appender.
• Improve appearance of the block hover state on colored backgrounds.
• Move the color and font size caption styles into theme styles.
• Replace the verse block icon.
• Standardize align and className attributes for dynamic blocks.
• Remove the title from mobile inserters.
• Capitalize button labels.
• Remove menu toggling on checkbox, radio buttons clicks.
• Make the invisible image resize handlers bigger.
• Improve the alt text field description.

Bug Fixes

• Improve the format boundary styles.
• Convert void blocks properly when converting or pasting content.
• Fix the ClipboardButton component behavior in Safari.
• Fix expanding the text selection when using shift + vertical arrows.
• Fix the alignment of the third-party block settings items.
• Fix invalid HTML in some more menu items.
• Fix JavaScript error in the columns block.
• Fix radio button appearance on small screens.
• Save line breaks in the preformatted block.
• Fix edge case in the is_gutenberg_page plugin function.
• Fix toolbar position in full size aligned blocks on small screens.
• Fix double scrollbar issue in Full Screen mode.
• Fix JavaScript error when downgrading to an old Gutenberg version.
• Fix the WordPress embed block resolution.
• Fix embedding links with trailing slashes.
• Fix the preloading apiFetch middleware when initialized empty.
• Fix php notice when using widgets without description.
• Better horizontal edge detection to fix the arrow key navigation in the table block.
• Fix error in API Fetch initialization.
• Fix unwanted margin in Column block.
• Fixes issue where emoji would be destroyed.

Documentation

• Document the block editor module.
• Add design documentation for the Panel component.
• Document webpack config extensibility.
• Clarify experimental and unstable API guidelines.
• Setup automatic API documentation for the data module.
• Improve the automatic API documentation tool.
• Enhance the components documentation:
  • FormFileUpload component.
  • MediaPlaceholder component.
  • Notice component.
  • TextControl component.
• Updates the blocks creation tutorial.
• Typos & tweaks: 1, 2, 3, 4, 5, 6, 7, 8, 9.

Various

• Implement a built-in static Gutenberg Playground.
• Override core block server-side code when using the plugin.
• Make the block editor module more reusable.
• Expose the lazy and Suspence React features in the element package.
• Avoid assuming persisted preferences state shape.
• Remove dead code from the calendar block renderer.
• Extract global CSS resets into reusable mixins.
• Replace image urls by base 64 encoded images in reusable CSS files.
• Add default empty implementation for the block types save function.
• Add a new data action to replace the inner blocks.
• Support parent data registry inheritance in the data module.
• Add extra props support for the Dashicon component.
• Add a BaseControl.VisualLabel component for purely visual labels.
• Refactor setupEditor effects to actions.
• Refactor the core/data store to be independent from the registry object.
• Remove componentWillMount usage from LatestPostEdit component.
• Add a generic e2e test for block transforms and work on its stability.
• Allow e2e test failures for php versions lower than 5.6.
• Add eslint rule to prevent incorrect truthy length property checks.
• Add eslint rule to prevent unsafe setTimeout usage in components.
• Run the local gutenberg environment in debug mode.
• Disable