
While most Android smartphones out there haven't yet received the Android 8 Oreo software update, Google is reportedly already working on the next major release, Android 9, whose codename will start with the letter P.
Android 8 Oreo has two versions, 8.0 and 8.1, the latter being the most recent, released at the end of January 2018. The Oreo series brings quite some exciting features, including Picture-in-Picture (PiP), notification dots, Bluetooth 5 support, Wi-Fi Aware, wide-gamut color, multi-display support, and battery improvements.
For developers, Android Oreo introduces WebView, Java 8 language APIs (Application Programming Interfaces), a Neural Networks API, Autofill framework, notification channels, AnimatorSet, autosizing TextView, new media features, unified layout margins and padding, speech output, app categories, and fonts in XML format.
With Android 8 Oreo, Google also introduced Android Oreo (Go edition), which promises to bring the powerful Android Oreo experience to entry-level, cheap Android smartphones. The first developer preview of Android 8.0 Oreo was released last year on March 21, and the final release was unveiled on August 21, 2017.