After spending most of my waking time on Stack Overflow, for better or for worse, I've come to notice how 99% of the C++ questions are answered with "use boost::wealreadysolvedyourproblem", but there must definitely be a few areas Boost doesn't cover, but would be better if it did.

So what features is Boost missing?

I'll start by saying:

• boost::sql (although SOCI should try to become a legal part of boost)
• boost::json (although TinyJSON should try to become a legal part of boost)
• boost::audio (no idea about a good boost-like C++ library)

PS: The purpose is to compile a reasonable list, and hopefully Boost-like solutions out there that aren't yet a part of Boost, so no silly stuff like boost::turkey please.