Samsung has actually launched a new software upgrade for the Galaxy A51, which bumps up the Android security patch level on the smart device to July 2021.
A total changelog of the upgrade is currently not available, but it might consist of some additional user-facing enhancements or brand-new functions.
Samsung Galaxy A51
Via
The brand-new firmware has version number A515FXXU5EUG2 and is currently seeding in Russia. If you reside in Russia and have not received the upgrade prompt yet, you can inspect for the update by hand by browsing to your Galaxy A51s Settings > > Software update menu.