• Added Sidebar (actions, index, pinned, queries)
• Added View > Hide Interface (⌘.)
• Added Outline > Move to Index Row
• Added Go > Focus Index Row
• Changed UI direction: dropped glass, added more theming
• Expanded theming (see bike-theme.json in bike-extension-kit)
• Removed + shortcut for unordered list replacement (use -)
• Fixed crash opening links in Hebrew text (out-of-bounds index)

For extension authors: new outline and row APIs, plus sidebar, style, and naming changes.

• Added Outline.observeChanges to see fine grained outline changes
• Added accessors to row including Row.ancestors, etc.
• Added AttributedString.count to get character count
• Renamed editor style editor.focusMode to writingFocusMode
• Limited Sidebar API to new addAction call
• Standardized on term level across AppleScript, API, and internal code
• Updated bike-extension-kit extensions to use new APIs