Chris Coyier and Stephen Shaw discuss the transition from CodeMirror 5 to CodeMirror 6, highlighting the significant improvements in accessibility, performance, and user experience. They delve into architectural changes, integration with modern JavaScript frameworks such as Next.js, and the new theming options available in the editor.

Time Jumps

  • 00:00:05 Welcome to CodePen Radio in 2026
  • 00:01:07 CodeMirror’s journey with CodePen
  • 00:07:41 Getting different language support in CodeMirror
  • 00:13:26 Improved search and developer experience
  • 00:15:30 Support for Emmet
  • 00:18:21 Theming CodeMirror
  • 00:21:11 Great support from CodeMirror

Video