Specifically, beginning with August 2019 new apps from other sources targeting an API level lower than level 26 (Android 8.0 Oreo) will trigger warnings during the installation process in order to ...

API Level 14 corresponds to Android 4.0, Ice Cream Sandwich, which is six years old! Android 8.1 Oreo still contains all the components needed to make these six-year-old apps work.

Beginning on November 1, 2022, existing apps that don’t target an API level that is within two years of the most recent major Android release won’t be available for download for users of ...

This just applies to new apps. However, from November, existing apps on Android will also need to target an API level within two years of the latest OS release, a level of 31 or higher.

From 2019 onward, the target API level will advance along with new Android releases. Developers will always need to target OS versions at most one year old.

Google announced this week the release of the first public preview its SDK Extensions, which leverage modular system components to add APIs to the public SDK for certain previously released API levels ...