I would always check manually for an update. Updates for carriers (including unlocked) are sometimes released seperately and after the other. Your update might just take a bit longer to be pushed out.
Sometimes there are delays on software updates and could even be a week after it's been released to pop up on your device.
But, you can give this a try:
1) Go into your settings and scroll all the way at the bottom to system updates
2) click on "check for system updates"
3) from there it will have you manually update it, if it pops up or tell you what latest version you have
I hope this helps!