Not really. I looks pretty much the same to me as when they started and it certainly looks the same as when they were bought, five years ago.
I'd be very interested in knowing how many product and engineering people still work on it. (if any…)
So: changes, yes. Improvements? No.
That was the whole business model that Mint was based upon. They'd give you the service for free, and make money on lead-generation.
When they were a startup, they could afford not to be quite so annoying about it. Now that Intuit owns it, they can no longer keep burning cash. They have to show that they can make a profit. If lead-gen won't do it, then they'll have no choice but to start charging.