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

What's New on CotEditor 3.3.5

release: 2018-03-10

Improvements

Update “Swift” syntax style for Swift 4.1.

Fixes

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