Any time there is added functionality to segments, the API gets updated.
As far as I am aware, there are no limitations. If you find something
that doesn't work, call customer care so we can get the details and get
a fix created. When you get that error, are you making a Segments.Get
request? Could you share the request body?As for another way to update a
segment, Segments.Save is the only way. It was designed to work with the
output of Segments.Get, so you could get a segment, change a bit, the...