Google asks Android developers to make next generation apps compatible to latest Android versions and 64-bit by August 2019 as a part of improving safety and efficiency of Android apps.
Along with this, Google wants all new apps to target on Android Oreo or higher, by the starting of August 2018 and by November 2018, all existing apps should be changed to the latest versions. Developers who wish to keep the 32-bit apps can do so, but will also need to have the 64-bit version.
Google reveals that the changes are intended to prepare developers for a time when smart phones only support 64-bit. According to Google, currently 40% of the latest Android devices support 64-bit while also being compatible to the 32-bit version. Google want developers to follow this as a bid to reduce fragmentation of the Android user base.
Other than this, Google is also trying to push the enterprise customers to use the new Android device API’s.