The Parallel Patterns Library is a Microsoft library designed for use by native C++ developers that provides features for multicore programming. It was first bundled with Visual Studio 2010. It resembles the C++ Standard Library in style and works well with the C++11 language feature, lambdas, also introduced with Visual Studio 2010. The Parallel Patterns Library is a Microsoft library designed for use by native C++ developers that provides features for multicore programming. It was first bundled with Visual Studio 2010. It resembles the C++ Standard Library in style and works well with the C++11 language feature, lambdas, also introduced with Visual Studio 2010.