https://www.theregister.co.uk/2017/08/21/googles_android_8_oreo/

Google on Monday released Android 8.0 Oreo, the latest update to the world's most widely used operating system, as measured by internet usage.

First released as a developer preview in March, when the code was designated by the letter "O" instead of a trademarked confection, Google's mobile operating system hasn't piggybacked on the popularity of branded sweets since 2013's Android 4.4 KitKat.