[BudVVeezer]

The author may be a bit confused as to what C++17 will be. Modules will be in a TS, most likely. Transactional memory, concepts, ranges, and filesystem are already in published TSes (not planned for the IS in this round). Out of the list presented, only fold expressions and __has_include are actually already voted in for C++17 itself. The rest are in various stages of standardization (mostly TSes) and are not guaranteed to ever become part of the IS (though hopefully many will).

[StephanTLavavej]

That's incorrect - the Ranges TS was just started, and certainly hasn't been published yet (not even as a PDTS). Filesystem was the first published TS.

[BudVVeezer]

Ah, that's right, ranges was a new work item planned for TS (but still not planned for IS in C++17).