I finally updated today from 5.4.4 to 5.4.5. Immediately I noticed a slight difference in text alignment on TextButtons.
(Granted, these are small buttons, but something is off). Zoomed in:
You can see the semi-opaque line I drew under the text; in 5.4.5, the text drops by 1 pixel. It’s no longer vertically centered properly.
There are no custom or modified LookAndFeels involved with these buttons; straight old default TextButton.