This is more like the update interval I had originally in mind: one month per version. In fact, this is the first edition for the same CDK release as the previous edition, and thus is edition 1.4.7-1. Still, this release adds 12 new pages, consisting mostly of a new Chapter 14, about molecular descriptors, and the CDK API for descriptor calculation:
Other new content includes a short code example for generating 3D coordinates.
The paperbak is available from Lulu.com, an on-demand publisher, as well as this ebook version.