https://www.cnbc.com/2018/08/06/google-launches-android-9-pie.html

Google's latest version of its Android smartphone software will start rolling out to Pixel phones today.

Android is by far the most popular smartphone software in the world, with roughly 80 percent market share, according to Statista. However, that includes open-source derivatives of Android that have been customized heavily and include few or no links to Google services, and even phones that have the Google-approved version of Android are not updated right away. As a result, few people will actually be able to download the software today.