There is plenty of evidence that they have improved in all benchmarks and also in my private experience. But have they improved in the things they still fail at? No, they still fail at them. You need only one example of failure to prove that it still fails. They still fail a lot on many real world tasks.
So, depending on what you ask, they may have not improved even a tiny bit.
So, depending on what you ask, they may have not improved even a tiny bit.