I'm really interested in the Core guidelines. They are only a few years old, however. It will be super interesting to see some case studies of large codebase adoption in the next few years. The lifetime profile is the one that I 'm most interested in seeing some real studies on. Some of the changes seem pretty simple (of course, I don't have to make them in any codebases) so it makes me wonder if they are expressive enough to solve a large chunk of the use after free problems.