It features many improvements under the hood as decreased memory (up to 300% !) and CPU usage as well as better time/bandwidth estimation during sync. In the frontend you might notice two big improvements concerning the sync of external storages (integrated storages like Dropbox, Google Drive, Samba etc.) : You can now easily deny or allow the sync of external storages – both on initial setup as well as later on in the settings. Just like you already could handle large folders to sync or not to sync.
External storages are furthermore shown with a separate icon in the folder list to easily spot the folders located on secondary storages. Another really big improvement can be found when right-clicking on a file to share. Public share links can now be transferred to your standard mail client directly after creation (Button ‘Mail link’) which delivers a massive increase of productivity. To keep your password only for personal access, the new client version also allows to work with app-specific credentials that users can generate in the web interface.
ownCloud Desktop Client 2.3.0 additionally introduces Qt 5.6.2 on Windows and Mac (Linux upcoming as well!) as well as improved error messages for users. Another great security feature the release includes is support for SSL client certificates that provide an additional layer of security by empowering admins to distribute certificates to users and restrict access thereby (in addition to usual passwords).
The full changelog can be found at https://owncloud.org/changelog/desktop/. Make sure to update today to get these awesome new features!