Hi @gscoolidge
Thank you for the clarification! The short answer is that the app doesn’t support every minor version outside of what we have made available. We only have a single minor version for each major PHP version available to download in the the app. So if you wanted to test that version specifically you’d have to do a bit of manual work to compile it on your end.
There is a feature request here created and commented on by others looking for more version control: Ability to download/change specific PHP versions