I like to use Computer Modern as my default font. I noticed that, after updating to v1.5.0, the superscript positioning for tick labels in, e.g., log-log plots is off from what it was in 1.4.3. I've only noticed this difference for CMU Modern, not the default sans-serif fonts. Was this an intentional change? See plots below -- titles specify mpl version number (I moved my matplotlibrc file to make these plots).

v1.4.3, sans serif

v1.4.3, CMU serif

v1.5.0, sans serif

v1.5.0, CMU serif

Code: https://gist.github.com/adrn/aebd2641be6142dedbdf