I recently released version 8.5.4 (build 188) using Cloud Build. During testing via TestFlight, the app worked correctly on an iPhone 6 running iOS 12.5.8.
However, after the app was published on the App Store, I found that the same version does not open at all on iOS 12 devices. Previously, earlier versions (such as 8.5.3) were functioning properly on iOS 12. My app’s minimum deployment target is set to iOS 12.0.
This issue appears only with the App Store version, while the TestFlight version works fine on the same device.
Due to this, I have paused the phased release of version 8.5.4 to prevent further impact on users still running iOS 12.
I would like guidance on the following: 1. Has there been any recent change or limitation affecting apps targeting iOS 12 on the App Store? 2. Is there a way to prevent iOS 12 users from downloading version 8.5.4 while allowing them to continue using version 8.5.3? 3. Is there any recommended approach to ensure compatibility or restrict distribution based on iOS version?
If I had known this issue in advance, I would have adjusted the deployment target accordingly before release.
Any help or insights would be greatly appreciated.