I thought this case was discussed earlier on this forum, but I can’t seem to find the thread. Anyway, this is the case the Supreme Court originally agreed to hear in which NYC was sued for a very restrictive gun control law. That law prohibited a NYC resident from transporting a gun outside city limits, even if it were to be taken to a second home or to a gun range outside the city. Once the Supreme Court decided to hear the case, the NY legislature amended its gun laws and NYC nullified its own restrictive gun transportation law. Despite that, the Supreme Court decided to hear it anyway and even held oral argument. Nonetheless, the Court recently dismissed the case as moot, citing the repeal of the former, restrictive NYC law.
What I find most interesting is that recently appointed Kavanaugh appears to have been the deciding vote, in an otherwise supposedly conservative court, to dismiss the case.