The new software update for Narzo 30A carries firmware version RMX3171_11_A.19. In addition to a new security patch, the OTA update optimizes system stability and fixes some known issues. The update is mainly aimed at bringing the June 2021 security patch which improves system security by fixing a bunch of vulnerabilities.  Device:

Realme Narzo 30A

Region:

India

Software version:

RMX3171_11_A.19

Changelog: [Security]

Updated Android security patch: June, 2021

[System]

Fix some known issues Optimized ​​system stability

As always, the new OTA update is rolling out in a phased manner. So, it may take a couple of days to reach your phone. You can manually check for the latest update on your Realme smartphone by heading to Settings » Software updates.  [source]

Realme Narzo 30A gets June 2021 security patch update - 64