Back in January, Galaxy M31 received the Android-11 based One UI 3.0 update. Now, the company is sending a new software update to the Galaxy M31 that bumps Android monthly security patch level to March 2021.
In addition to a new security patch, the update improves the stability of Camera. There could be more camera improvements which are not detailed in the changelog. The update carrying firmware version M315FXXU2BUC8 is rolling out in India with a package size of 549MB.
Galaxy M31 users in India who have not received the update yet, can manually check for the latest package by heading to Settings >> Software update.