Two things changed... The experiment which focuses the g-2. And also the way the calculation for g-2 is derived from theory... But the underlying theory did not

Two things changed... The experiment which focuses the g-2. And also the way the calculation for g-2 is derived from theory... But the underlying theory did not change just the method of calculation and perhaps some of the experimental inputs. So taking the experiment alone it would appear that there was a large gap between theory and experiment aka new physics. But, with the latest round of calculation it seems there is much less discrepancy.