The updater's “Install” button works only on CotEditor 3.3.0 and later.
To update from an earlier version, download archive from and install it manually.

What's New on CotEditor 3.3.5



  • Update “Swift” syntax style for Swift 4.1.


  • Fix an issue where application could rarely crash under specific environment on saving.
  • Fix an issue where the domain part was ignored when a favicon was dropped from Safari to editor.
  • Update “YAML” syntax style to fix outline extraction with a specific case.

previous release notes