As far as I know, once selected build is approved and released to App Store, all testFlight version below the build will automatically expired.
Say, under Version 1.0.0, there are build 1070, 1071, 1072, if build 1072 is selected for shipping to App Store, all build below 1072 will expired.
Is there any way that I can keep accessibility of testFlight's build for my team after the build is released to App Store? Is this appropriate?
What most developers do is distinguish between dev builds and release builds. Our TestFlight builds are dev builds and they do not expire until after the normal 90 days, even though we do a release to the App Store every 14 days.