Added

• Window-layout options in Settings > Document
• Many new theme options for configuring window appearance
• New option: Settings > Hide editor toolbars and panels when typing
• Auto-hiding glass controls in View > Enter Full Window mode
• Sidebar Cmd/Option+Up/Down navigation now jumps between groups
• Use toggle behavior for Go To Sidebar/Editor/Inspector commands
• Expanded sidebar drag-and-drop capabilities. Drag to and from most locations
• New "indent" attribute allowing rows to be “over-indented” (Bike 1.x and TaskPaper style)

Fixed

• Improved row text move and delete commands
• Ordered list numbering across viewport gaps
• Go To issues when the sidebar had not yet been made visible
• IME improvements, including fixes for Korean input and likely others
• Improved per-window restorable state (more state restored, with better accuracy)
• Fixed a problem where pasted rows could appear in a broken collapsed state
• Fold state restoration for rows without a persistent ID

Changed

• New documents now start with one empty row
• Many refinements to the default theme (see as example for new options)
• Collapse Row now folds only selection-cover rows, not every selected row

For extension authors

• Added Screen interface; screens and mainScreen on the global.
• Window.frame, Window.screen, and PanelHandle.frame are now read/write
• showPanel({ frame }) replaces the separate x/y/width/height/screen options.
• StyleContext.isFullWindow (renamed from isInterfaceHidden) and StyleContext.viewportContentInsets.
• StyleContext.consecutivePath: number[] replaces orderedIndex; covers both ordered and heading runs.