There’s a guy who did as a PHD, a book that summarizes the innovations in C++14. I was positivly surprised about the summarization and relevance.

several links

http://resource.zhaoziyuan.com/resource_b/0957b2b8f3891eeb2c20d0dfc921f27e.pdf
His book I have found in Google

His lecture 1

His lecture 2

Someone else about the same subject:

Modern C++: What You Need to Know

https://github.com/isocpp/CppCoreGuidelines
Documents say how to write correctly the new C++

code::dive conference 2014 – Scott Meyers: Support for Embedded Programming in C++11 and C++14
copy of a same thing edited differently

Then there is also the CPPCON. Link to all CPPCONs, There is also of year  2015
https://www.youtube.com/channel/UCMlGfpWw-RUdWX_JbLCukXg

Less relevant:
http://habrahabr.ru/post/248137/ – Something in Russian

http://www.aristeia.com/BookErrata/emc++-errata.html
Error corrections to the book