I’ve noticed during my XeLaTeX typesetting with
hyperref package that since not so long ago, URLs (using
\url) have been typed in lining figures (as opposed to the oldstyle figures) whatever my setting for default body font is.
I think that this was done for good reason to improve the readability of the URLs. Nevertheless, can this actually be easily changed if I want to have all figures in my text back to oldstyle, including those in the URLs?