OnePlus has started the incremental rollout of a new OxygenOS 12 - C.15 build for the OnePlus 9R model, the device received the Android 12 update finally last month, and this update tries to fix a few bugs & issues for the same.
The new update optimizes the phone's charging speed in some scenarios. The update also fixed some previously known issues to make the system stable and smoother. This OTA will be incremental and will reach only a small percentage of users, but very soon, they will be going for a broader rollout of the update.
OnePlus 9R was released on 23rd March 2021 with Android 11 out-of-the-box., upgradeable to Android 12
On March 19, 2022: Oneplus finally released the much-awaited Android 12 update for Oneplus 9R, in which the bigger brother the 9 & 9 Pro had received much earlier than 9R, even though they belong to the same series of the lineup, but the 9R is almost equivalent to predecessor the Oneplus 8 Series as they have received the update same as 9R.
More About: Oneplus 9R: Android 12 with OxygenOS 12

Source: Oneplus Community Page
| Android OS | Update | Release date/status | Estimated time |
| Android 11 | Out-of-the-box | March 2021 | Nil |
| Android 12 | First update | March 2022 | 6 months |
| Android 13 | Second update | Eligible | Unconfirmed |
| Android 14 | Third update | Eligible | Unconfirmed |
Check your device>>> OnePlus Android 12 update list
The OnePlus 9R will receive three years of major OS updates and four years of Security updates.
The OnePlus 9R Software Update with OxygenOS 12 with C.15 Build is currently rolling out in India
Once the update is available on your device, you can head over to Settings >> About Phone >> Software Update section to update your OnePlus device with the latest update.
For more OnePlus Android updates please download our android app – available on the Play Store