The OnePlus 9 and 9 Pro unveiled last week are receiving yet another software update as OnePlus has released OxygenOS 11.2.2.2. The new update bumps up the Android security patch levels on both smartphones to March 2021 and comes with tons of improvements and bug fixes. You can check out the complete changelog below for more details. System Improved the charging stability to provide a better user experience Improved WhatsApp's video clarity when giving video calls Improved the vibrating performance of games such as Call of Duty and PUBG Fixed the issue...
Source: https://www.gsmarena.com/oneplus_9_9_pro_oxygenos_11_2_2_2_update-news-48503.php