Samsung Galaxy S20, Galaxy S20+, and Galaxy S20 Ultra One UI 5 update is already available in several countries. The carrier-unlocked variants are now able to install the December 2022 security patch update in the US.
The latest software version for the carrier-unlocked Galaxy S20 (SM-G981U1), Galaxy S20+(SM-G986U1), and Galaxy S20 Ultra (SM-G988U1) comes with version G98XU1UES3FVK4. The December 2022 security patch fixes over 90 security vulnerabilities.
In order to install the latest firmware on your device just tap on Settings -> Software updates -> Download and install.
Samsung Galaxy S20 Software Info
The Samsung Galaxy S20 series was initially launched with Android 10. Samsung promised to deliver three major versions of Android and it means that the Android 13 update is the last major update.
Galaxy S20 Latest news