- Update to 6.11:
* Added turned capital F (U+2132) to Libertinus Serif Regular.
* Fix advance width for Serbian alternate U+0431 in Libertinus
Serif Semibold.
* Unify Cyrillic small letter ef (U+0444) shape in Libertinus
Serif SemiBold fonts.
* Add U+1D35, U+1D51, U+1D4B, U+1DA4, U+1DB6, U+2132,
U+A71C-A71D, and U+A78A-A78C to Libertinus Serif fonts.
* Add U+2982 and U+2A3E to Libertinus Math.
* Various cleanups to Libertinus Mono font, removing erroneous
glyphs and unsuitable features.
* Improve the metrics of math italic v, w, and y.
* Work around a bug in old versions of FreeType when rendering
Linertinus Sans Italic m.
* Fix alignment of multiplication sign in Libertinus Serif and
Mono Regular fonts.
* Make sizing of vertical and double vertical bar consistent
with other math delimiters.
* Improve spacing above and below fraction rule.
* Various fixes to combining marks placement.