This is (at least) the second major update in a row I haven't received an email from the SendOwl system. It looks like my updates have not been reset in a few updates either. I show 4 updates remaining of each O/S version.
I download one copy at every update and archive it for myself, so it would appear it has been 3 updates since a reset. That is counting the 18 release and the two 17 version releases. So, I believe the last time I received either the email or a reset was back at version 16, and honestly I'm not sure if I received the email at version 16 either. I think I did get a reset at that point though.
Not a super big deal yet, as I obviously still have my download link and some downloads left, but the system seems to be somewhat bugged currently.