[Thank you to Thomas for taking the time to research and compile a quite comprehensive list of what's new in C++17! -- Ed.]
A new WG21 paper is available. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.
Document number: P0636R0
by Thomas Köppe
This document enumerates all the major changes that have been applied to the C++ working draft since the publication of C++14, up to the publication of the C++17 DIS (N4660). Major changes are those that were added in the form of a dedicated paper, excluding those papers that are large issue resolutions. No issue resolutions from either CWG or LWG issues lists (“defect reports”) are included.