Realme started rolling out December 2021 Security patch for Realme 6 Pro devices with improvements in the system and brings fixes an issue in WhatsApp where images could not be loaded occasionally. This update carries a build number of RMX2061_11.C.21
The Realme 6 Pro was released in September 2020 with an Android 10 out-of-the-box.
Realme 6 Pro previously was packing an October 2021 Security Patch with C.20 Build, which had fix related to the mini window, where users who dragged the screen sometimes were facing restart issues, as well as there was a fix in the microphone which had an occasional issue.
Previous post: Realme 6 Pro October 2021 Security Patch with C.20 Build

Source>>Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 10 | Out-of-the-box | March 2020 | Nil |
| Android 11 | First OS update | April 2021 | 7 months |
| Android 12 | Second/Last OS update | Eligible | Unconfirmed |
The Realme 6 Pro received its first major OS update with Android 11 in April 2021.
As it has bagged only one major OS update, it can be concluded that it is Eligible for the upcoming Android 12 update. And it will be the second/last major OS update for it.
Check this >>> Realme Android 12 Update list Based on Realme UI 3.0
The Realme 6 Pro software update with December 2021 Android Security Patch is rolling out in phases reportedly. And, it is expected to be rolled out to all the users soon.
Once the update is available on your device, you can head over to Settings >> About Phone >> Software Update section to update your Realme device with the latest update.
For more Realme Android updates please download our Android App – Available on the Play Store