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 3.3.4

release: 2018-03-03

Improvements

When “Indent with Tab key” is on, reduce indent level of the current line with Shift+Tab even when nothing is selected.

Fixes

Fix an issue where lossy saving was failed.
Fix an issue where ⌘← was ignored when the cursor locates at the end of the document.
Fix an issue where save dialog layout corrupted when toggling the visibility of the file browser.
Fix an issue where no alert was raised on saving even when a document contains lossy yen signs.
Fix an issue where document syntax was parsed twice on file open.
Fix a possible crash on print.

previous release notes