UFO Font generation has been improved and the UFO format has been added. Now, a UFO format and fontmake library are used under the hood in all export functions. In the experimental function for variable fonts kerning works correctly.
Kerning I am testing a kerning feature based on machine learning. Interesting results, but requires a lot of improvements. The first version already works with a secret keyboard shortcut. You can find out how model works here https://agasyanc.ru/page/ai-kern?locale=en. If you have any questions, please write.
And a few more little things: small improvements in the pen tool, the rectangle and circle tools show the size when creating, when creating a new font, you can disable the creation of the Latin 2 charset and start working with an empty font.