The C+03 standard stayed among us for a long long time, perhaps a decade or so.
While we had plenty of time to get to know it reasonably well this led to stagnation.
But away from the eyes of the crowd, C++ continued continued its evolution.
It's true that there were some clues from good libraries, most notably Boost.
In fact, Boost is a very good library with significant influence on the C++ standards.
But Boost wasn't the standard itself and so was usually treated as experimental.
When the new C++11 standard finally saw the light of the day it was overwhelming.
The more reasonable generally available C++11 compilers appeared 2 to 4 years later.
Anyway, the multitude of new stuff of C++11 standard is great and much welcome.
But I risk to say it's almost impossible to absorb it in less than a year or so.
What seems to be true is that a wealth of previous limitations are gone.
The C++14, as far as I know, is a "slight" refinement of C++11.
The ISO C++ 11 standard is officially known as ISO International Standard ISO/IEC 14882:2011(E) and the ISO C++ 14 standard is officially known as ISO International Standard ISO/IEC 14882:2014(E).
Instead of mastering every corner of the new standards, it seems better to concentrate just on the enabling new features particular to a certain objective at hand, while being aware that later on one may surprisingly come to discover some built-in ready-made industrial-strength feature that is highly portable and efficient and does exactly what you're trying to do as well as or better than your individual efforts.
So, it will take a lot of time to tackle the C++11 and C++14 standards.
Hopefully much less than it took to know C++03.
Let's see, C++17 seems to be under way!
