C++ 11 is the new ISO standard for C++ language.
What’s new in C++ 11 ? Check-out this Herb Sutter image from “Why C++” talk: http://ecn.channel9.msdn.com/content/WhyCPPCB2011.pdf
To read (for free) a 1334 PDf document about the C++ language, you can drownload the draft of the C++ Programming Language Specifications:
ISO/IEC 14882:2011 Programming Language C++ – draft