Stacer is A System Monitoring and Clean Up Utility for Ubuntu.
LibreOffice, the free and open-source office suite releases 5.3 which, as per TDF blog post is the “one of the most feature-rich releases in the history of the application”.
Tor browser releases version 6.5.
Messenger for desktop is a wrapper app to the official Facebook client messenger.com.
Handbrake, the free and open source video converter is capable of converting videos from modern file formats.