OK - I've checked this out and found that all that this 'new version' has by way of documentation is a short PDF containing the new features and some other 'improvements', just like a normal Nx.xx.xx maintenance update.
So, despite having to pay for the update/bugfix (although no bugfix list is provided), we are still left with a completely out-of-date N6 user manual and a bunch of additional addendum that we have to rifle through when attempting to find info.
There is no full N6 1/2 user manual despite claims that it is a full new version that has nothing to do with N6.0.x. (Apparently Steinberg don't issue bug fix lists for completely new full releases).
How cool is that?
The Archers - give it a rest already!
i7 Quad core 2.66 15GB ram, Windows-7 64-bit, Nuendo-6.5 64-bit, Wavelab-6, 2x MR816CSX, RME FireFace UFX, SmartAV Tango, MOTU Express 128, UAD-2 Quad, Lexicon PCM-91, Lexicon MPX-550, TC-Fireworx, Halion-5, Kontakt-5, Roland V-Drums TD-20X
Cubase iC Pro for Android and iPhone
Omnisphere, Trillian + loads of real instruments.