Thanks for your message Brian. do-release-upgrade reports:
Checking for a new Ubuntu release Please install all available updates for your release before upgrading. Then returns to the prompt. If I then run apt-get update apt-get upgrade apt-get dist-upgrade I get nothing except the message that dh-python is being kept back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1936669 Title: Software Update won't install version 21.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1936669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs