This new release has brings bug fixes and performance improvements. There is not any major visual changes I found in the update. But they improved overall speed and stability of Play Store android app. Which give you best user experience.
The latest Google Play Store APK v6.5.20 is available to download for Android 4+ devices, and the Apk file weighs 15.36 File size. The update might not available for all devices as of now, but you can download this update directly from below.
Play Store v6.5.08 APK