Realme 9 has started rolling out an OTA update, the incremental software update brings April 2022 security patch via OTA, and the latest update carries a build number RMX3521_11_A.07 and comes with fixes in security, system & camera issues.
Realme 9 was released in April 2022, with Android 12 out-of-the-box.
It integrates the April 2022 security patch. It also optimized system stability to improve user experience. For the camera, It added front and rear video anti-shake function, Optimized the rear camera wide-angle preview screen clarity, Optimized the rear main camera ZOOM clarity, and Optimized the front video clarity.
As seen previously there are a lot of similarities in the old A.05 build of the April 2022 Security Patch, and there might a issue in Realme team as they haven't changed the changelog properly or their might issue wide rollout of the same update, check here previous update: Realme 9: April 2022 Security Patch with A.05 Build

Source: Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 12 | Out-of-the-box | April 2022 | Nil |
| Android 13 | First OS update | Eligible | Soon |
| Android 14 | Second OS Update | Eligible | – |
The Realme 9 came with an Android 12 out-of-the-box. Therefore, it is eligible for the upcoming Android 13 and 14 update.
Hence, the Android 14 will most probably be the last major OS update on this device, if Realme sticks to its commitment to providing 2 major upgrades.
The Realme 9 Software Update for May 2022 the new update has been rolled out and has reached a limited number of users.
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