v3.12.0
- Dropped support for Python 3.9 (EOL), fontmake now requires 3.10+.
- Added support for generating preliminary (GDEF) openTypeCategories
for designspace/UFOs sources that lackpublic.openTypeCategories
and request to use the ufo2ftpropagateAnchorsoptional filter,
using glyphsLib's GlyphData.xml. This particular feature requires
ufo2ft >= 3.8.0.