Changelog:
- Initial GTK3 release.
- Support for the OAuth2 authorization protocol has been added for IMAP, POP and SMTP using custom, user-generated client IDs. OAuth2 preferences are found in the Account Preferences on the Receive page (for POP: Authenticate before POP connection, for IMAP: Authentication method); the Send page (SMTP authentication: Authentication method); and on a dedicated OAuth2 page.
- The option 'Save (X-)Face in address book if possible' has been added to the /Message View/Text Options preferences page. Previously the (X-)Face would be saved automatically, therefore this option is turned on by default.
- The Image Viewer has been reworked. New options have been added to /Message View/Image Viewer: when resizing images, either fit the image width or fit the image height to the available space. Fitting the image height is the default. Regardless of this setting, when displaying images inline they will fit the height. When displaying an image, left-clicking the image will toggle between full size and reduced size; right-clicking will toggle between fitting the height and fitting the width.
- When re-editing a saved message, it is now possible to use /Options/Remove References.
- It is now possible to attempt to retrieve a missing GPG key via WKD.