You cannot easily switch between 0.7.x and 1.x.x versions.
What's new in 1.1.1RC1
- Button to regenerate a self-signed HTTPS certificate (to update to modern standards)
- Restored download speed for Unix (and some other) systems
- Fixed yEnc crash that occurred on some Windows systems
- Small UI fixes
https://github.com/sabnzbd/sabnzbd/rele ... g/1.1.1RC1