I will be talking about the C++ Standard Undefined Behavior Annex proposals (http://wg21.link/P1705 and https://wg21.link/p3075), The goals and the process around the proposals and ongoing work I will discuss why it is important to the C++ community. I will discuss how it relates to safety in C++ I will also discuss why it is important to the clang community. Finally close out with a call to action for the clang community on how to contribute and what some goals should be once we have the Annex in the standard.