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This afternoon in Bristol, UK, the ISO C++ standards committee adopted generic lambdas, dynamic arrays (an improved version of C99 VLAs), variable templates, reader/writer locks, make_unique, optional, standard library user-defined literals, and a number of other language and library improvements – and approved the result as the feature-complete Committee Draft (CD) of Standard C++14 to be distributed for its primary international review ballot.
I'm interested reading the specifics about the new features but I can't seem to find any more written about them than is in the link above.