Hi Gordon, sorry about the issue - I agree our upgrade process for the commercial version is not there yet. This is one of the reasons why everybody who purchased the product at any time before is getting free upgrades every time they are released for the last few years
Seriously though, we were just about to send a newsletter to all our customers with the new permanent download links. It will go out either today or Monday.
PS: we need to get everybody on the release build of 3.5 before we can enable the new upgrade process via spoteditor.code which has a timestamp of the purchase date. Hopefully once this newsletter is out, we can enable it within 1-2 month. Until then, please use the links we just sent you via email.
Thanks for bring this issue up on this forum.