Ironically, our last one was this past Friday.
That was announced a few months ago along with the opening up of most US States and the soon-to-be-widely-available vaccines.
I can't speak for everyone where I work, but this felt like an appropriate time to shift back to normalcy in that regard. In any case, we have a very generous PTO policy that should make it easy for anyone to continue to transition through the rest of the year as they see fit.