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…

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Chris Coyier and Stephen Shaw discuss CodePen's migration from CodeMirror 5 to CodeMirror 6, covering architectural changes, accessibility and performance improvements, new theming options, and integration with modern JavaScript frameworks like Next.js.

418: CodeMirror 6