Android Q: Apps can probably be downgraded
from David Haydl 
on January 28, 2019, 8:00 | Write a comment
There is a high probability that it will till May take time for Android Q to be introduced. Nevertheless, there are now indications of a feature that will certainly benefit some.
We are talking about the possibility of downgrading third-party apps installed on the smartphone from the Play Store to a specific version. Until now it was only possible to reset system apps to the original version. The XDA Developers in a code of the current Android Q build, like that Android Police.
<protected-broadcast android:name="android.intent.action.PACKAGE_ENABLE_ROLLBACK"/>
<protected-broadcast android:name="android.intent.action.PACKAGE_ROLLBACK_EXECUTED"/>
<permission android:name="android.permission.PACKAGE_ROLLBACK_AGENT" android:protectionLevel="signature"/>
<permission android:name="android.permission.MANAGE_ROLLBACKS" android:protectionLevel="installer|signature"/>The two approvals "PACKAGE_ROLLBACK_AGENT" and "MANAGE_ROLLBACKS" are probably responsible for going back to a different version of an app. "PACKAGE_ENABLE_ROLLBACK" and "PACKAGE_ROLLBACK EXECUTED" are intended to show an app whether it has been scaled back to an earlier version.
