Bugfixes
- Workaround Delete parent folder issue #124
- language setting ignored when opening a new window, if autodetected #205
- Issue with Amazon shipment notification, etc. emails #187
- Discord notification mails not displayed correctly in v2.12.0 #230
- gpg.php throwing warnings in v.2.12.0 #231
- Fatal php Error with v2.12.0 #232
- Bug with files attachment with text/plain emails #228
Improvements
- Cleanup more CSS
- CSP header improvements for plugins (lik reCaptcha)