• OnePlus is currently soak testing Android 6.0.1 Marshmallow-based OxygenOS update for OnePlus 2.

OnePlus is currently soak testing Android 6.0.1 Marshmallow-based OxygenOS update for OnePlus 2. (Photo : YouTube/Marques Brownlee)

Earlier this month, OnePlus 2 received OxygenOS 2.2.1 with some new features. November 2015 saw the company detailing it would roll out its Android 6.0 Marshmallow-based OxygenOS update to the OnePlus 2 in Q1 2016.

With the Q1 2016 deadline looming, it is not surprising that the company is reportedly testing an OxygenOS 3.0 update based on Android 6.0.1 Marshmallow. One user according to Android Police received the update OTA sharing a screenshot with the publication. Since there is no official confirmation for the company and there are varied user reports, the update is rumored to a soak test - the rollout of an update to a limited number of customers to establish last minute bugs before the official rollout.

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The screenshot shared by the user confirms not only OxygenOS 3.0 but also unveils some alterations made in the ROM like inclusion of a slider for alerts, new wallpapers, and customizations to the home-screen. There is no much information known concerning the upcoming OS version, but it seems to be considerably different from the Marshmallow implementations from other manufacturers.

With regard to the Marshmallow update for the first smartphone, OnePlus One, the company announced back in November that users should expect the OxygenOS-based update in the first quarter of 2016. The first CM13 Snapshot builds based on Android 6.0.1 Marshmallow are currently rolling out, and the CM13 OS rollout is not too far away, according to NDTV.

OnePlus 2 received OxygenOS 2.2.1 update earlier this month with RAW file support for the native camera app. Furthermore, the update fixes the frequent image corruption problem in the OnePlus 2 camera. Notably, OnePlus X as well received an update recently, which fixes some camera problems, although it was not an OS update.

The latest OS version features some improvements in Bluetooth compatibility, Ultra-SIM compatibility, and roaming problems. Include in the latest OxygenOS 2.2.1 incremental update are security patch update, GMS 3.0 upgrade, and Romanian language support.

Meanwhile, OnePlus co-founder Carl Pei revealed last month that OnePlus 2 successor, OnePlus 3, will be coming out in Q2 2016. According to him, the device will arrive in the US and other markets as an unlocked smartphones, and it will be sold directly by OnePlus.

Watch the footage below for further information on Android Marshmallow-based OxygenOS.