Android 8.0 Oreo overview - Everything you need to know!

Android "Oreo" (codenamed Android O during development) is the eighth major version of the Android mobile operating system. It was first released as an alpha quality developer preview on March 21, 2017. The second developer preview was released on May 17, 2017, and it is considered beta quality and the third developer preview was released on June 8, 2017 and finalizes the API. On July 24, 2017, a fourth developer preview was released which includes the final system behaviors and the latest bug fixes and optimizations. It was released to the public on August 21, 2017.

Google unveiled a statue of the dessert-themed update at 14th Street Park in Manhattan, close to the original Nabisco factory that created the first Oreo.