The five most significant revisions of the C++ standard are 
C++98 (1998), C++03 (2003) and C++11 (2011), C++14 (2014) and C++17 (2017)

The next iteration is currently expected in 2020. Of course, 
  it can be a challenging task for software engineers, 
    compiler writers and lecturers (!) to keep track of all the 
       revisions that appear in each major version of the standard