Highlights on CotEditor 3.8

Improve Dark Mode compatibility
Now, you can set Dark Mode to document windows regardless of the system setting.
Catalina support
Provide the usual confort even under the latest environment.

What's New on CotEditor 3.8.0


cf. No changes from 3.8.0-beta.2.

New Features

  • Add “Appearance” option in the Appearance preferences pane to change document window appearance whatever the system appearance is (only on macOS 10.14 and later).
  • Add a new theme “Anura (Dark)”.


  • Change the system requirement to macOS 10.13 High Sierra and later.
  • Improve the theme switching algorithm between light and dark appearances.
  • Keep multiple cursors after pasting multiple lines.
  • Update the result table of “Find All” even when no substring was found.
  • Adjust drawing of the alternative character for invisible control characters.
  • Adjust text baseline of input fields in the find panel when a fallback font is used.
  • Always enable Left to Right button in Writing Direction toolbar button.
  • Change the way to count words for stability.
  • Update “TOML” syntax style to support array of tables (Thanks to Takuto ASAKURA!)
  • dev: Update build environment to Xcode 11.1 (Swift 5.1, macOS 10.15 SDK).


  • Fix the selection movement direction after ⌥⇧← or ⌥⇧→ shortcut.
  • Fix an issue where scripting commands convert and reinterpret failed.
  • Fix an issue where the color panel for theme editing could occasionally not change.
  • Fix an issue where the appearance of Acknowledgements window was not updated when user changed the system appearance after the launch.

previous release notes