• [fontBuilder] Fixed bug in setupOS2 with default panose attribute incorrectly being set to a dict instead of a Panose object (#3201).
• [name] Added method to removeUnusedNameRecords in the user range (#3185).
• [varLib.instancer] Fixed issue with L4 instancing (moving default) (#3179).
• [cffLib] Use latin1 so we can roundtrip non-ASCII in {Full,Font,Family}Name (#3202).
• [designspaceLib] Mark as optional in docs (as it is in the code).
• [glyf-1] Fixed drawPoints() bug whereby last cubic segment becomes quadratic (#3189, #3190).
• [fontBuilder] Propagate the 'hidden' flag to the fvar Axis instance (#3184).
• [fontBuilder] Update setupAvar() to also support avar 2, fixing _add_avar() call site (#3183).
• Added new voltLib.voltToFea submodule (originally Tiro Typeworks' "Volto") for converting VOLT OpenType Layout sources to FEA format (#3164).