https://github.com/cplusplus/concepts-ts is the repository for the C++ Technical Specification "Extensions for Concepts".
For the most recent draft of the lists generated from these files, see http://cplusplus.github.com/concepts-ts/. The active issues list can be found at: http://cplusplus.github.com/concepts-ts/ts-active.html.
The Technical Specification concepts is found in the src directory
and is written in LaTeX. There is a Makefile that can be used to compile
the sources.
An earlier version of the specification can be found in the html directory;
it was written in HTML using a Javascript/CSS framework for formatting.
This is not the current version of the document.