The Z-Wave Technical Services website http://support.zen-sys.com provides a better overview of the content in a Z-Wave
Software Developer's Kit (SDK) as well
as granting access to download SDK releases, Blueprints, Application Notes, Documentation
etc. In addition the website provides a "known issues" module in
which Z-Wave developers can find the Test Observations found on a specific
SDK
revision. Finally the website is an important tool for updating all Z-Wave Partners
with new Device and Command Classes as they evolve.