The stable OneUI 4 launch for Galaxy Z Fold3 and Z Flip3 users did not get off to a good start earlier this month and was actually suspended for a while as Samsung had to iron out a bevy of bugs. It seems all is well now and owners of the two foldables in the US are now getting the new update.
Users on Verizon are reportedly first in line while those on other networks should receive the update later on. Galaxy Z Fold3 gets the F926USQS1BUL6 update build while the Z Flip3’s bears the F711USQS2BUL6 identifier. The new updates also bring the December 2021 security patch.