• Drop support for Internet Explorer 6.
• New modes: Shell, Tiki wiki, Pig Latin.
• New themes: Ambiance, Blackboard.
• More control over drag/drop with dragDrop and onDragEvent options.
• Make HTML mode a bit less pedantic.
• Add compoundChange API method.
• Several fixes in undo history and line hiding.
• Remove (broken) support for catchall in key maps, add nofallthrough boolean field instead.