Explore the potential impact of C++20 language features on future library design in this comprehensive conference talk. Delve into the vision for delivering key language features like modules, concepts, and contracts that could influence library development. Examine constraints and opportunities in designing a new C++ standard library, addressing compatibility, ambition, and core vocabulary types. Participate in a workshop to provide feedback on priorities, development schedules, and ways to contribute to the standardization process. Gain insights from Alisdair Meredith, chair of the C++ Standard Committee Library Working Group, as he discusses topics including library-level abstraction, module syntax and constraints, concepts, declaration forms, and forwarding references.