Performance

• Improve page initialization time by optimizing the addHook function and the viewport state initialization.
• Improve typing performance by splitting the state tree.
• Optimize partial application of runSelector.
• Move selector calls to the event handles to avoid useless component rerenders.
• Render DropZone children only when dragging elements over it.
• Initialize variables only when needed.

Enhancements

• Add error messages to the image block on upload failures.
• Merge similar i18n strings.
• Disable clipboard button in file block during upload.
• Persist alignment when transforming a gallery to an image and vice-versa.
• Copy enhancement to the embed block help text.
• Improve the scrolling of the WordPress navigation menu.

Bug Fixes

• Fix RTL support for the DatePicker component.
• Change the header level in the BlockCompare component.
• Show all the taxonomies in the sidebar.
• Fix the latest posts date className.
• Fix the “align center” button in Latest Posts block in the backend.
• Fix block height when DropCap is used.
• Fix converting caption shortcode with link.
• Fix edge case in addQueryArgs function.
• Don’t return the permalink if the CPT is not publicly viewable.
• Fix error when saving non public CPTs.
• Properly disable the Publish button when saving is disabled.

Various

• Show a message in the browser’s console when in Quirks Mode.
• Improvements to the @wordpress/scripts package: A new a check-engines command, a lint-style command and an update to lint-js.

Documentation

• Add a getting started with JavaScript tutorial.
• Document the blocks’ setup states in the design guidelines.
• Add content to Contributors index page.
• Improve the components documentation:
  • The MenuItem component.
  • The RadioControl component.
  • The ServerSideRender component.
• Organise the documentation assets in a dedicated folder.
• Clarify immutability of the block attributes.
• Fix the metabox back compat code example.
• Fix incorrect data module example.
• Improve the plugin release docs.
• Remove useless property from the colors code example.
• Improve the contributing documentation.
• Fix npm README links.
• Update the design resources link.
• Typo fixes.

Chore

• Run e2e tests with popular plugins enabled.
• Add new e2e tests:
  • The permalink panel.
  • The categories panel.
  • Blocks with meta attributes.
• Update node-sass to fix Node 11 support.
• Move the dev dependencies to the root package.json.
• Improve the Pull Request Template.
• More logs to the CI jobs.
• Code style fixes and expand the phpcs coverage.
• Disable fragile e2e tests.
• Avoid PHP notices when running the e2e tests in debug mode.

Mobile

• Make a simple version of DefaultBlockAppender.
• Stop using classname-to-style autotransform in react native.
• Fix SVG styles.
• Implement Enter press to add a default block.
• Hide keyboard when non textual block is selected.
• Fix undo/redo on new blocks.
• Pass the blockType prop to RNAztecView.
• Expose unregisterBlockType.