Google has today announced that the first developer preview for its upcoming mobile OS, Android O, is on its way. Android O succeeds Android Nougat, the developer preview for which was also announced during the same time last year.

As is the case with early dev previews, the version of Android O available is not going to be stable, as Google is updating new features and improvements, and changes are coming to the under-development platform on a regular basis before it becomes available to more users. For now, Android O is not available via OTA updates or the Android Beta program, but images for Nexus 5X, 6P, Player, and Pixel, Pixel XL, and Pixel C have been released.

As we dive into what the developer preview offers currently, some of the features that stand out are significant changes to app background activity that will positively affect battery life, adaptive icons for apps, improvements to wireless audio, and official support for picture-in-picture display for apps that provide it.

Moreover, notification channels customized app-by-app, wide-color gamut, again, for apps that want to open images in that format, and AutoFill APIs so that user information may be shared and duplicated across the platform seamlessly. More details are obviously expected to be unveiled at Google I/O in May later this year, so is the Android Beta Program for Android O.

But if you don’t have the patience for it and want to put the preview through its paces, you’ll have to flash the update manually onto your devices. That is, if your device is one of the few that are supported as of yet.