Oneplus has rolled out OxygenOS 11 iterative software update with OxygenOS 11.0.4.1 for Oneplus 7 users with October 2021 Security Patch.
Oneplus 7 was released on 04th June,2019 with Android 9.0 out of the box.
This is a phased rollout with OxygenOS 11.0.4.1 launched Globally and is soon to be followed closely by EU regions. This update via OTA is staged with limited users to get it as fast as they can.

Source>> Oneplus community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 9 Pie | Out-of-the-box | May 2019 | Nil |
| Android 10 | First OS update | October 2019 | 1 month |
| Android 11 | Second OS update | March 2021 | 16 months |
| Android 12 | Third/Last OS update | - | - |
Also Read>>> OnePlus Android 12 update list
The OnePlus 7 has received two major OS updates with Android 10 and 11. But Oneplus has promised 3 year OS updates for its flagship series of devices.
Hence, the Android 12 update should probably be the last major OS update on this device.
But it will continue to receive Security Updates or the OxygenOS updates next year at least.
The OnePlus 7 Software update has been released in GLO and EU regions currently and will soon expand to other regions. Once it’s available on your device, you will receive a notification regarding the software update.
Then, you can head over to Settings >> About Phone >> Software Update section to update your OnePlus 7 with the latest OxygenOS 11.0.4.1.
For more OnePlus Android updates please download our android app – available on the Play Store