The recent update looks to be okay and working fine as per described scenario:
What's changed At the time of bug report 2021-01-10 ubuntu-release-upgrader version: ubuntu-release-upgrader-core 1:21.04.3 Python Version: Python 3.9.1 After update on 2021-01-12 ubuntu-release-upgrader version: ubuntu-release-upgrader-core/hirsute-proposed,hirsute-proposed,now 1:21.04.4 all [installed] Python Version: Python 3.9.1+ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910886 Title: Crash | Upgate manager from GUI when clicked on install | File "/usr/lib/python3/dist-packages/UpdateManager/UpdatesAvailable.py", line 882, in on_button_install_clicked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1910886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs