Yesterday we heard that the Samsung Galaxy S9 and Galaxy S9 Plus had started to receive a software update on T-Mobile. Now it would appear that other versions of the handsets are also receiving the software update.
Some of the unlocked versions of the Samsung Galaxy S9 and Galaxy S9 Plus have started to receive the update in the US.
The update brings the Galaxy S9 to software version G960U1UEU1ARBG and the S9 Plus to software version G965U1UEU1ARBG. The update is the same as the T-Mobile one and it is around 286MB in size.
The software update for the Galaxy S9 and S9 Plus brings some improvements to the cameras on the handsets and also some stability improvements to Face Unlock. The update should be available for your device as of now and you can see if it is available from the settings menu.
Source Droid Life