Like C, C++ is standardized by ISO under the id: ISO/IEC 14882.
The latest standard costs 30 dollars as of 2013, but free drafts are also available.
Links to several versions: http://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents
Drafts are freely available at: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/. N3337 seems to be very close to C++11.
Like any standard C++ has several versions noted by year. There are also minor revisions knows as technical reports.
First version.
Bug fix release, not many new features.
2005 draft for extending C++11.
Most of its propositions were accepted for C++11, and before that many compilers implemented its propositions.
TODO when was it made?
Not in C++11, maybe C++1Y.
It proposes many inclusions from Boost.
https://en.wikipedia.org/wiki/C%2B%2B11
Previously known as C++0x, but took too long to come out.
Unlike C++03, lots of new features: standard passes from 800 to 1300 lines.
In gcc used to be enabled via -std=c++0x flag, now -std=c++11. Still marked experimental, but good support for the basic features.
Will come after C++11. Known as C++1Y as many have doubts it will come out in 2014.