Is there a good, terse primer on the features and coding idioms/best practices of C++17 for someone who was proficient in C++98 but hasn't touched the language in years?
Having said that, C++17 was a minor update (much to Stroustrup's displeasure) and I can heartily recommend this book.
It was Meyer's last book as he is now retired (but will happily reply to emails; I love that about the C++ community - I've emailed Sutter, Stroustrup and Meyers and they will all reply).