OnePlus has put up a page where you can track the status of security updates for some of its phones. Right now it appears a bit incomplete, but it does bring some good news for owners of the OnePlus Nord – it will be getting security patches until mid-2023.
That’s noticeably longer than the Nord N10 and N100, which will only receive two years of security patches (so the end date should be in late 2022) and a single year of OS updates (likely meaning they’ll get Android 11 and that’s it).
As you can see from the table, the OnePlus 8 and 8 Pro models are on a quarterly schedule. The 8T should be on a monthly schedule, though that part of the page is empty (which is why we say it looks incomplete).
There’s no word on OnePlus’ 2018 and 2019 models either, but they belong in the quarterly schedule table. The OnePlus 3 and 3T got their final security patch in late 2019 (three years after launch), which means support for the 5 and 5G should be ending soon (they did get an update in November).
Also, note that this is only about security patches, not OS updates. The company’s flagships should be getting new Android versions for two years, plus an extra year of security patches.
You can find the latest info on the official page. Also check out the Details tab, which lists which vulnerabilities were fixed with a given patch.