The Vivo Y12i was released in 2019, and it ran on Android 9.0 (Pie) out of the box. In 2021, Vivo rolled out several firmware updates for the device, which brought various improvements, bug fixes, and security patches.

You're looking for a report on the Vivo Y12i firmware update from 2021. Here's what I found:

The Vivo Y12i received several firmware updates in 2021, which brought improvements to performance, security, and features. Users can check for updates manually and install them using the device's built-in update mechanism. If issues arise, troubleshooting steps can be taken to resolve them.