Several important changes are coming to Active Calculus (Single Variable) in time for the Fall 2025 semester, including a new Second Edition; at the same time, the current versions will remain fully available for the foreseeable future. If you are currently teaching with AC using the HTML at https://activecalculus.org/single/ and don’t want to make any changes, you won’t need to do anything other than update the link from which you access the HTML. The new, stable URL for the current vers...
