OnePlus has announced several changes for OxygenOS, its custom version of Android. As expected, OxygenOS and Oppo's ColorOS will merge, but this coalescence will yield a few advantages, apparently. However, it seems that OnePlus has forgotten that it used to release three OS updates to its devices. The company has not addressed the lackadaisical approach it currently takes to releasing OS and security patch updates, either.
https://www.notebookcheck.net/The-new-OnePlus-Software-Maintenance-Schedule-is-not-all-it-is-cracked-up-to-be.549035.0.html