I’ve been away from C++ for a quite few years, and it seems like a lot has happened to my old friend C++98. As I start to dive into C++17 and beyond, I’m curious about the C++ community’s adoption of the C++ Core Guidelines and enforcement tools like clang-tidy. The uBLAS community is of particular interest to me, because the things we do focus on innovative use of language features to squeeze numerical performance out of C++ and not the typical GUI or network application efforts of so many other projects.