After a long waiting Google has officially announced the name of its latest operating system, its Android 6.0 Marshmallow. Google alongside announcing the name, also unveiled the final developer preview of Android 6.0 which is much stable compared to the previous preview. The developer preview 3 can be flashed on Nexus 5, Nexus 6, Nexus 9 and Nexus Player. For all those Nexus devices who already on the Android 6.0 developer preview 2 will be getting an OTA update.
Users can download the latest developer preview 3 from Google Android Developer page and manually flash it in your devices. According to the reports, there are only few changes including the adjustment to the permissions UI and the Fingerprint API which doesn’t cause any affect to the hardware of the device.
In addition, Google also announced the Marshmallow 6.0 SDK which can be directly installed from current Android SDK manager or from here. Google has not yet revealed when it’s going to release the official Android 6.0 Marshmallow for Android 5.1.1 Lollipop OS devices. This might be happening somewhere in the month of September or October 2015.
Source 1, Source 2