Hi. I am proud to announce that the C++ Alliance has entered into a partnership with Sean Baxter to develop Safe C++: language extensions to provide memory safety in C++. Some of you might have seen the official announcements on various social media sites, and I’m here to provide some more information on how this initiative affects Boost. First, I want to express my appreciation for Sean’s enormous technical abilities, and for his stamina to invest eight years of research and development into Safe C++. I believe that his efforts reflect good philosophical principles for improving the language with memory safety extensions: 1. Safe C++ must be a superset of C++: all existing code must work. 2. Safe C++ must allow controlled opt-in to memory safety: expecting the world to rewrite everything in a new language is not realistic. 3. Safe C++ must be developed using an implementation-first approach: a working model is preferable to just ideas. The partnership with Alliance has three deliverables: research the remaining design problems, complete the Safe C++ Language Extensions proposal for standardization, and implement the Safe C++ Standard Library. The safe library is a set of additions to the standard library providing essential vocabulary types and algorithms needed by users to achieve memory safety. We don’t know that Safe C++ is the final solution for memory safety in C++. Perhaps the required extensions will be so intrusive as to make it effectively a new language. Maybe the language features which allow for zero-cost abstractions are so powerful that they can’t be preserved in ways that are memory safe. Yet there is value in pioneering this design space that Sean has carved out. It is also possible that Safe C++ becomes the winning memory safety story for C++. We at the Alliance believe it is worth taking the chance to find out. Through the relationship with Alliance, the Boost community has a unique opportunity to participate in helping to explore and solve the remaining difficult design problems, and a front-row seat to the latest draft of the Safe C++ proposal which can be viewed here: https://safecpp.org/draft.html If you would like to discuss Safe C++ in real time with other engineers please join the #safe-cpp channel in the Official C++ Language Slack Workspace by signing up here: https://cppalliance.org/slack What does this mean for Boost? There is a tremendous opportunity here for Boost to innovate ahead of the C++ Standard. I envision the scenario where some volunteers will port selected Boost libraries to Safe C++ as a proof of concept. The porting process will surface areas of the proposal which need work. As memory safety is rapidly becoming the defining feature of modern mission-critical software development, the opportunity for Boost to lead in this area may attract the needed revitalization of the project in the form of new volunteers. Please join us in helping to define this exciting chapter of the C++ language! Thanks