I followed the test case provided and was unable to upgrade from Gutsy to Hardy with update-manager version 0.87.24. I then used the version of update-manager from -propsed, 0.87.25, and was able to complete the upgrade to Hardy Heron.
I followed the test case provided and was unable to upgrade from Gutsy to Hardy with update-manager version 0.87.24. I then used the version of update-manager from -propsed, 0.87.25, and was able to complete the upgrade to Hardy Heron.