In 2015 when Lollipop arrived, Android started to supported 64-bit apps. Now, Google has announced that that it will only allow 64-bit apps in the Play store starting in August 2019, in order to ensure a higher degree of security and performance among Android apps. Android Apps to Support 64-bit by August 2019.
As Android apps will have to support 64-bit code, they won’t have to ditch 32-bit compatibility. Google has observed that there will eventually be Android devices that will only support 64-bit code.
Android Apps to Support 64-bit by August 2019
Company said that 64-bit code typically offers significantly better performance, with additional registers and new instructions, for apps that use native libraries.
Google has also mentioned that:
A security upgrade is coming in early 2018, although coders won’t have to worry about those. Google is sprinkling a “small amount” of security metadata on early 2018 to prove that apps were distributed through the Play Store. Think of it as a “badge of authenticity.
The company is making the move in anticipation of future Android that support 64-bit apps. You will need to add a 64-bit alternative, if your app has a 32-bit library, either within the same APK or as one of the multiple APKs.
The changes are being made to help the apps become more secure as the Android platform itself. Earlier this year Apple has already taken this step with the introduction of iOS 11.