C++ 11 (formerly C++Ox) is the latest version of C++ supported in Visual Studio 2012. New STL headers include <atomic> and <chrono>. The atomic library defines atomic types (data types free from race conditions - so if one thread reads from an atomic item and another writes to it, the behaviour is well-defined). Examples are atomic::int and atomic::long. The chrono library deals with time, specifically objects representing time spans and points in time.
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