From the changelog:
- Plugins API supporting C and Python plugins
- SSL certificate verification (requires libmesode) (/tls)
- HTTP file upload (xep-0363) (/sendfile)
- Blocking command (xep-0191) (/blocked)
- Allow auto extended away (/autoaway)
- Include last acitvity in initial presence (xep-0256) (/lastactivity)
- Last Activity (xep-0012) (/lastactivity)
- Ability to run command scripts (/script)
- Account startscript property to execute a command script on connect (/account)
- Export roster to CSV file (/export)
- Support for GTK tray icons (/tray)
- User specified text triggers for chat room notifications (/notify)
- Per chat room notification options (/notify)
- Many new roster panel display options (/roster)
- Time format preferences per window type (/time)
- Edit, prepend and append to room subject (/subject)
- Autoping timeout preference (/autoping)
- Window navigation by window title (/win)
- Window closing by window title (/close)
- Account theme setting (/account)
- Allow sending XMPP stanzas in xmlconsole window (/xmlconsole)
- Configure level of room message notifications in console window (/console)
- Check ~/.config/profanity/inputrc for readline settings
- Custom readline functions for navigation key bindings
- Autocomplete command arguments when no characters entered
900ded32f4