After being in the beta phase for several months, OxygenOS 12 for the OnePlus 9 series has finally started rolling out to devices in select regions. This is possibly the most significant update in OnePlus history, as not only is it adopting a new build of Android (Android 12), overhauling the UI, but also merging with Oppo's ColorOS codebase to create what is now part OnePlus, part Oppo, and part Google software. For our assessment today, we will be testing the first stable release of OxygenOS 12 on the company's premier OnePlus 9 Pro device. This update was installed as an OTA...
Source: https://www.gsmarena.com/oneplus_oxygenos_12_review-news-52205.php