I suspect Tesla is going through their usual, planned testing regimen with 13.2, and it will be 13.3 when it releases more widely.
I'm also thinking Tesla wants to add those recently-announced end-of-drive options for parking to make ver 13 more feature-complete.
Personally, I'm hoping Tesla addresses hanging barriers first. I see one FSD youtuber who has a community barrier gate on his usual test loop(s), and every version of FSD so far has failed to even slow for a hanging barrier (community gate in this instance). When 13.2 first dropped, Chuck Cook took it on one of his usual loops that took him to a parking lot next to a body of water. He then observed that he had stopped next to some private parking spaces that were blocked with chains. He tried autopark into one of these spaces and had to cancel it as it was about to ram into the chain.
There are lots of places, usually driveways, where a chain is used to block off the driveway, or a parking lot. And of course there are lots of train crossings, though they usually have flashing red lights as well.
I have personally witnessed FSD (12.5.something-I-dont-remember-now) try to drive right through a commuter train gate in Phoenix. I do not recall this intersection having any flashing red lights, just a normal traffic light with a barrier gate down when the train is coming by. I was turning right onto a street with the tracks going down it when I came to the corner and (FSD) almost drove into the barrier at windshield height.
Hanging barriers, school zones, no turn on red signs, stopped school buses - these are big remaining must-fix issues. Are there any other (big, obvious) issues like this left? I suppose when we get reverse capability it may open up a few new ones.