After releasing the June 2023 Android security patch for the Galaxy Z Fold4 and Galaxy Z Flip4 in the US a few days ago, Samsung is now updating the devices that came before them. In the US, both carrier-locked and unlocked Galaxy Z Fold3 and Galaxy Z Flip3 devices may download the June 2023 Android security update.
The updated firmware for the carrier-locked Fold3 and Flip3 models is F926USQS3FWE5 and F711USQS4FWE5, respectively, while the updated firmware for the unlocked Fold3 and Flip3 models is F926U1UES3FWE1 and F711U1UES4FWE1, respectively. You may manually check for the update on your Galaxy Z Fold3 or Galaxy Z Flip3 if you reside in the US by going to the Settings > Software update menu on your phone.