- Always use harfbuzz for subsetting fonts, fonttools and Python no longer required!
- Don't use Google Web Fonts' subsetting service, always do the work locally.
- Remove support for the
--subset-per-page
switch to reduce complexity. If you really need this feature, you can run subfont on each page. - Remove support for the
--inline-fonts
switch. The optimization will still be applied when it's suitable.