Change Details

[Release announcement](https://lists.boost.org/Archives/boost/2018/07/242466.php) and [calendar](http://www.boost.org/development/index.html)

[Release announcement](https://lists.boost.org/Archives/boost/2018/08/242686.php) and [calendar](http://www.boost.org/development/index.html)

[Release announcement](https://lists.boost.org/Archives/boost/2018/078/242466686.php) and [calendar](http://www.boost.org/development/index.html)