I'm so old I can remember this being published originally and should still have a copy (books are in a shameful mess
).
I spotted the new e-edition in this month's kindle deals for £2.19 and bought one. Bad news
It now has a (mercifully, short) 'Beyond the Binary' section recording progress for the 'Gender Identity Liberation Movement'. 
For the rest, it still seems to define women as adult human females, but I'm very 