After rolling out a number of software patches and fixes to its latest flagship already this year, OnePlus has begun soak testing its OxygenOS 3.0 operating system for the OnePlus 2. The new OS number coincides with an upgrade from Lollipop to Marshmallow, and all the improvements that includes.

According to user reports, OxygenOS 3.0 is built on the latest Android 6.0.1 Marshmallow version, which comes complete with the new emojis. The March Android security patches have also been included, which will help keep the handset secure. As you’re probably aware by now, Marshmallow features the new Doze battery management, customizable app permissions, Do Not Disturb mode, and plenty more options that you can read about here.

As well as the upgrade to the latest version of Android, OnePlus has added a few of its own tweaks into the software. There is now a slider to control notification alerts, a new widget FAB and customization options for the home screen, and a selection of new wallpapers to choose from too.

The update doesn’t appear to be rolling out far and wide just yet. OnePlus is probably testing for any bugs before rolling out OxygenOS 3.0 to all of its OnePlus 2 owners, but we are edging close to a full release now. Keep an eye out for that OTA notification.