A staff member from the OnePlus forums announced in a new post that the Oxygen OS Open Beta for OnePlus 5T and OnePlus 5 is now rolling out. It is bringing Android Pie with a long changelog list, including new UI, navigation gestures, communication improvements, etc. The 2017 devices who decide to join in and install the Open Beta will also get the latest Android security patch, dated November 2018. The Android Pie OS also brings adjustable settings to the Do Not Disturb mode. The optimized UI has some improvements for emergency rescue and the ability to set up a specific SIM and...
Source: https://www.gsmarena.com/oneplus_5_5t_android_pie_open_beta-news-34665.php