C++17 - The Complete Guide -- Nicolai M. Josuttis
The first draft of "C++17 - The Complete Guide" is now available at
C++17 - The Complete Guide
by Nicolai M. Josuttis
About the guide:
Buy early, pay less, free updates.
This book uses a new publishing model: It is written incrementally and self-published. That way you can buy it even before it is complete and I have income while I am still writing it (note that I do C++ for a living).
Most of the new features are covered already in detail:
- All major new core language features
- The new library components (filesystem only by a few examples)
But there is still enough to do (see http://www.cppstd17.com/ for details).
All covered features went through significant review with awesome feedback and already have a lot of useful details including how they integrate with other features and discussing all the traps you should avoid.

Some template tricks.
This is about visual studio, but this is also about how the deprecated mechanisms work.
Slides from a talk about C++17 features