Updike was always 'other' to me, but so were many (many, many, many) other writers. The only book of his I'm sure I read was Couples, around when it was published.
I've followed him mostly in his NYer book reviews and occasional short stories. Maybe I've read him on art, but I don't remember, need to check.
I saw in some link that such and such was his last work. Huh, the piece about the hat in arizona was more recent.
Whether it was or not, it's how I'll remember him, sort of a duck out of water - to me - in Arizona, but a duck with presence.