Korban's C++11/14 feature overview book now has a Clang edition, in addition to VS2013 and GCC:
by Alex Korban
From the announcement:
Do you use Clang to compile C++? Would you like to know all about the C++11 and C++14 language features it supports?
You can read about them in the new edition of my C++11/14 Rocks book tailored to Clang.
For those who have the GCC edition of the book: you’ll already be familiar with all the C++11 content as GCC also has full C++11 support. However, the Clang edition has full C++14 coverage instead of an overview.