Folding wings:
No it is not classified (or even UBS) and the intention of the brief is to disseminate it as wide as possible. I know a lot of people have not seen this through 'official' and unclassified channels. It was distributed to me from an official outlet via a commerical link (I do not have regular access to JPA/DII/whatever). Moreover, the importance of this change cannot be underestimated!
If you a re looking for leaks, you have to look inside Main Building itself. As a 'victim' of a leak some 12 months ago, I am acutely aware of the damage that leaks can cause. This is not a leak!