This is implemented in update-manager. update-manager generally only supports a very narrow subset of the configuration and then tries to do its own downloading rather than reusing apt's download code which would handle this all correctly.
** Package changed: ubuntu-release-upgrader (Ubuntu) => update-manager (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2085735 Title: do-release-upgrade fails with an IPv6 address for the proxy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/2085735/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
