Microstudio Upgrade 4.002

[doransdome]

First I bought 3. something then a few months later you came out with
4.001 so I bought that, then 10 days later you put it on the site for $10 less as an upgrade.

Now the site says 4.002 upgrade as of 8/6 but where it is?? I checked my store account for a free upgrade but don't find anything. Please let me know how to get this. Thanks