PKWare Updates Famous App Note

PKWare issued a slightly self-serving press release trumpeting the fact that they've updated their App Note that describes the Zip format. While it's true that they have updated the document, I can't find any description of the two new compression formats that are added to their version of the Zip standard. They're using a new version of deflate called Deflate64, and have added support for the PKWare Data Compression Library. Neither of the two formats is documented.