No specific info about version 3.0. Please visit the main page of Facebook 4 Mac on Mac Informer.
Post photos and video to Flickr, SmugMug and Facebook profiles.
Instant access to multiple Facebook accounts and desktop notifications.
Use Facebook Messenger right from your macOS desktop.
A video capture app to broadcast from your Mac to Facebook.
Make any panoramic JPEG image work as an interactive panorama in Facebook and be recognised properly in Google services.