• New mode: Sieve.
• New getViewPort and onViewportChange API.
• Configurable cursor blink rate.
• Make binding a key to false disabling handling (again).
• Show non-printing characters as red dots.
• More tweaks to the scrolling model.
• Expanded testsuite. Basic linter added.
• Remove most uses of innerHTML. Remove CodeMirror.htmlEscape.
• Full list of patches.