I would like to ask about the “modern” TrueType hinting workflow.
Over the last few years I have been using ttfautohint --control-file.
However, manual hinting must be introduced to meet the detailed requirements of my customers.
The information I want is the following points
・Handling of TrueType hint when updating fonts. How can I set the TrueType instruction in the previous version of font to the next version of font?
I have no knowledge of Hinting export/import.
Are there any teaching materials to learn about the recent Hintig workflow?
I would be happy if you could give me any information.