4.3.2 is a patch release with a bug fix for CodeMirror and improved handling of the "editable" cell metadata field.
- Monkey-patch for CodeMirror that resolves #2037 without breaking #1967
- Read-only (
"editable": false) cells can be executed but cannot be split, merged, or deleted
See the 4.3.2 milestone on GitHub for a complete list of issues and pull requests involved in this release.