OnePlus' 2020 flagship 8-series have acquired new updates for their version of Android, OxygenOS 11. It upgrades the phones to compatibility with the OEM's latest TWS earbuds, the Buds Pro, now released to the European market. The OTA also adds the latest software tweaks developed for its brand, its new Bitmoji AOD feature included.
https://www.notebookcheck.net/OnePlus-updates-the-8-8-Pro-and-8T-with-Buds-Pro-support-and-more.556113.0.html