Do the latest docs have the version 9.x updates?
Another easy question I hope - is there a 'cheat sheet' so to speak on the changes that have happened over the years - like
portTickType is now TickType_t - things like that?
The reference manual has been updated to V9.0.0, but the books have not (they take much longer). As far as seeing the history then check-in comments and version change history are probably your best options.
What about the tutorial PDF?
That was what I was referring to by the 'book'.