Google has introduced two new changes to Android 14 to speed up the deprecation of 32-bit apps and older SDK versions.
The first change is the deprecated ABI warning:
When the user launches any 32-bit application, a dialog box will pop up: This application is not compatible with the latest version of Android, please check for updates or contact the app developer.
This is part of Google's deprecation of 32-bit apps, the vast majority of Android phones already use 64-bit chips, so Google has long made a 32-bit deprecation plan, with the ultimate goal of completely abandoning all 32-bit apps, and if some old apps are no longer maintained and supported by developers and do not provide 64-bit versions, then they will not work in the new version of Android.
The second change is the deprecated SDK warning
This warning actually exists in Android 13, except that in Android 14 Google changed the SDK version when the user launches an app that still uses SDK 27 or earlier (Android 8.).version 1 and below) will pop up a warning box.
In the warning box, Google says: This app is built for older versions of Android, it may not work properly and does not contain the latest security and privacy protections, please check for updates or contact the app developer.
In Android 14, Google increased the minimum SDK version from 23 to 28 in Android 13, which means that applications built with SDK 27 and below will see this warning.
Finally, Android 14 also introduced a small change that would simply block the installation if a user tried to install an app with SDK 22 and lower.