This next release includes several features and improvements on many levels. We are adding a way to switch between the header toolbar and toolbars attached to the block by opening the toggle menu at the top right and choosing the behaviour. There has been convincing arguments for both approaches so we want to make it easier to test both easily. Other notable features include the ability to transform multiple blocks of the same type into other blocks (like many images into a gallery). There are improvements to meta-boxes (dropping iframes), foundational work for nested blocks and global blocks, many design updates, and initial integration with JS hooks.

1.7 🐴

• Add toggle to switch between top-level toolbar and toolbars attached to each block. We have gotten great feedback on the benefits of both approaches and want to expand testing of each.
• Ability to transform multiple-selected blocks at once — multiple images into a gallery, multiple paragraphs into lists.
• Add @-mention autocomplete for users in a site.
• Add data layer for reusable blocks and wp_blocks post type name.
• Allow pasting standalone images and uploading them (also supports pasting base64 encoded images).
• Allow block nesting from a parser point of view. This is the foundation for handling nested blocks in the UI.
• Full design update to focus styles around the UI.
• Block Extensibility (Hooks): filters may inspect and mutate block settings before the block is registered using hooks available at wp.blocks.addFilter. Testing with internal functionality first.
• Moved docs to https://wordpress.org/gutenberg/handbook/

Other Changes

• Refactor "changed post" functionality into higher order reducer and fix issue with wrongly reporting unsaved changes.
• Refactor meta-boxes to render inline, without iframes.
• Disable auto-p for block based posts, solving various issues around conflicting paragraph structures, freeform content, and text blocks.
• Placed "table of contents" button in the header area and disable when there are no blocks in the content.
• Redesigned the button block with inline URL field.
• Improve performance by refactoring block-multi-controls out of VisualEditorBlock.
• Replace react-slot-fill with our own first-party implementation. Part one, and part two for better handling of event bubbling within portals.
• Improve autocomplete behaviour by using focus outside utility. This solves an issue with selecting items on mobile.
• Capture and recover from application errors, offering the option to copy the existing contents to the clipboard.
• Expose editor reusable components. These will allow editor variations to be constructed with more ease.
• Add polyfill for permalink_structure option to wp-json. (Corresponding trac ticket.) Several REST API compat issues are going to be addressed like this. This allows Gutenberg to implement permalink editing.
• Unslash post content before parsing during save, fixing bugs with block attributes.
• Keyboard navigation overhaul of the inserter with accessibility improvements (accessing tabs, etc).
• Add paragraph count to table of contents element.
• General Navigable family of components.
• Add contrast checker message when color combinations are hard to read.
• Add "no posts found" message to latest posts block.
• Improve color highlight selection and browser consistency.
• Add aria-expanded attribute to settings button.
• Add loading message to preview window.
• Extract PostFeaturedImage, PostLastRevision, PostComments, PostTaxonomies, PageAttributes, PostTextEditor, BlockInspector, into reusable modules.
• Collapse advanced block controls by default.
• Update max number of columns when removing an image from a gallery.
• Prevent the post schedule component from having invalid dates.
• Make sure the inspector for a gallery block is shown when it has just one image.
• Accessibility improvements for inline autocomplete components.
• Update caption color for contrast.
• Update visual display of the "remove x" button on gallery-items.
• Improve classic block toolbar display and behaviour.
• Dismiss tooltip when clicking a button or when wrapper node becomes disabled.
• Restore block movers on floated items.
• Add spacing around date and label.
• Adjust raw handler "mode" option for readability.
• Improve e2e testing performance.
• Add fixture for undelimited freeform block.
• Hold jQuery ready only when there are metaboxes and ignore advanced ones.
• Make sure image size values are integers.
• Fix floated gallery styles in the front-end.
• Fix issue with image block not loading properly.
• Fix issue with missing function in IE11.
• Fix transformation of empty images into gallery and back.
• Fix overflow issues on mobile.
• Fix accidental block hover on iOS.
• Fix toolbar state issue with slot-fill utility.
• Fix case of too many undo levels building up.
• Fix stylesheet load ordering issue.
• Prevent input events from URLInput from being captured by Editable.
• Force onChange to be updated with TinyMCE content before merge.
  
• Polish heading toolbar buttons.
• Remove image resizing on mobile.
• Remove findDOMNode usage from Autocomplete component.
• Rename references of rawContent as innerHTML.
• Add tests and handle empty fills in slot-fill.
• Add tests for block mover.
• Add multi-select e2e test and fix issue with escape key.
• Bump node version to active LTS.
• Update TinyMCE to 4.7.2, fixing several bugs like toolbar flickering, visible placeholders when there is text, navigation breaks when encountering format boundaries, typing in FF after starting a bullet-list.

#core-editor, #editor, #gutenberg