OnePlus has begun the incremental rollout of the 11.2.6.6 update for the Oneplus 9R along with the November 2021 Security Patch and improvements in the system
OnePlus 9R was released on 14th April, 2021 with Android 11 out of the box .
Previous update: OnePlus 9R: OxygenOS 11.2.5.5 with September 2021 Security Patch
This update brings with it November 2021 security patches, bug fixes and other minor improvements. Similarly the Oneplus 9 & Oneplus 9 Pro got the latest security patch iterative OxygenOS 11 improvements. Still, the Android 12 with OxygenOS 12 is yet to be rolled to the Oneplus 9 Series of devices.

Source: Oneplus Community
Release date ->> update rolled on 1st December 2021
The OnePlus Nord 9R has been released with an Android 11 out-of-the-box. So, the upcoming Android 12 update will be its first major OS update.
| Android OS | Update | Release Date/Status |
| Android 11 | Out-of-the-box | April 2021 |
| Android 12 | First OS update | Expected 2022 |
| Android 13 | Second OS update | Unconfirmed |
| Android 14 | Third OS update | Unconfirmed |
Check here >>> OnePlus Android 12 update list
It is also Eligible to be on the Android 12 update list as well. And it may probably be getting the Unified Operating System in 2021 on the device.
The OnePlus 9R will get three years of major Android upgrades and four years of security patches reportedly.
The OnePlus 9R Software Update is currently rolling out to Indian users. Your device should receive the update soon.
Hence, once it’s available on your device, you can head over to Settings >> About Phone >> Software Update section to update your OnePlus device with the update.
For more Oneplus Android updates please download our Android App – Available on the Play Store