Hi @The-Tax-Lady , sorry, I should have been more clear.

When I say "updater", I am referring to the program that updates your ProSeries installation. It is an executable called ProSeriesUpdate.exe, and that is what is responsible for downloading and installing updates to your machine.

I did not mean to say that an update to the product won't affect your client files - that is apparent to you, and myself as well.

Addressing your ask: there should be a dialog that comes up, saying "ProSeries has detected that the amounts calculated in this return have changed since the return was e-filed.". 

It looks like this:

Did you perhaps check the box to not show this message?

Also, I believe you can lock your returns after e-filing them to prevent this altogether.

Please see this article for more information - https://proconnect.intuit.com/community/banking/help/new-for-tax-year-2017-proseries-return-locking/...