The Pixel 7 series won’t support 32-bit apps a few days before. It only supports 64-bit apps. Now, Google said that Pixel 7 series phones are the first ones that support only 64-bit apps and receive more benefits. 64-bit apps have extra registers and instructions this is the reason that runs fast. The CPU also gives better performance when 64-bit-based apps run on it.
In 32-bit code, apps use around 150MB RAM even when users not using the apps. After switching to 64-bit apps, it saves. This results in fewer background app kill and “less jank. On the security front, address space layout randomization (ASLR) becomes more effective as the countermeasure has more space to work without any issues. The company changes to access better tools, like HWASan for detecting memory errors, by just targeting 64-bit.
The company has been working toward this since 2014 when 64-bit support was first introduced with Google Play requiring apps to support it from 2019 onward. The company recommends that developers “start paying extra attention to testing their apps and updates for 64-bit-only devices” with Play, providing a prelaunch report for that scenario. Lastly, “64-bit-only device configurations halve the CTS testing time” for faster OEM updates.
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Google expects more Android devices to go this route but just provides an overtime timeline. Some Pixel 7 users have hit the new limitation when trying to install older, nonupdated apps.
Finally, there are some devices like Android Go, Android TV, and Wear OS, the company wants continuously provide support for the 32-bit.