In true Amazon style the Kindle Edition of Securing SQL Server 2nd Edition is available for purchase from Amazon before the physical print book is available. I haven’t even gotten my preview copy yet (it should be here in a day or two) but you can get your digital copy from Amazon as of about a week ago.
So if you’ve been waiting for the 2nd edition to come out, there’s no need to wait any longer.
If you want that physical book you can pre-order it, and hopefully it’ll be shipping within just a couple of weeks. Amazon has August 15th listed on the US website, but I’m not sure if that is the actual date or not.