https://www.cnet.com/news/android-9-pie-p-is-available-now-on-google-pixel-phones/

The next generation of Android is on its way. And you guessed it -- the P is for Pie. Android Pie, the new version of Google's mobile operating system, previously called Android P, comes first to the search giant's Pixel smartphones starting Monday. Google initially announced a preview version of the software in March, then demoed some features at its annual I/O developer conference in May. 

People who signed up for the Android Beta program, which lets you try out pre-released versions of the software, will receive the update by the "end of this fall," if they have devices from Sony Mobile, Xiaomi, HMD Global, Oppo, Vivo, OnePlus and Essential. Google said it's also working with other partners to launch or upgrade devices with Android Pie "this year," though the company didn't provide additional detail on exactly when those updates would come.