The problem has been solved without any action on my part. ** Changed in: apt (Ubuntu) Status: New => Fix Released
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/989091 Title: Invalid certificate for release channel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/989091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs