My keyboard is currently behaving. For once. It's been useless roughly three times since the last major update.

Over the course of each year-long iOS version life, I've become used to it sucking for a bit, either at the beginning (with bug fixes improving things) or towards the end (where, I assume, accumulated learning diverges from clean slate behavior.)

I suspect that the keyboard team is pegged with using new features on the silicon (Neural processing in earlier processors, then Neural Engine with newer processors) and they're doing what they can when tasked with new code.

But man, iOS4 didn't have all that and the keyboard was GREAT.