Realme has begun rolling out the October 2021 security patch for Realme 8 devices the new update comes with the system improvement and fixes in the functioning of the UI carrying A.21 Build with an approximate file size of 712MB - This update definitely packs a lot more than security patch.
Realme 8 was released on March 25th , 2021 with Android 11 out-of-the-box.
This update fixes some issues with display and touchscreen and optimizes system performance and improves system stability. Realme 8 had received the software update with DRE(Dynamic RAM Expansion) which is among the first to receive post-Narzo 30 5G brings functionality to the smartphone.

Source>>Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 11 | Out-of-the-box | March 2021 | Nil |
| Android 12 | First OS update | Expected soon | – |
| Android 13 | Second/Last OS update | Eligible | Unconfirmed |
The Realme 8 was released with Android 11 out of the box in the first quarter of 2021.
Check out: Realme Android 12 Update list Based on Realme UI 3.0
Hence, eligible for the upcoming Android 12 update and it will be the second update and it’s highly predicted that Android 13 to be the last update. However, it is still unconfirmed.
The Realme 8 with the October 2021 OTA Software update is just being rolled out.
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