After our planned September meetup fell through at the eleventh hour, NYC++ returned in October for another excellent event. Adobe again welcomed us into their Time Square office: We hosted Kristen Shaker for a reprise of her talk from CppCon, with Potbelly sandwiches provided by NYC++ for our hungry guests. Kristen taught us how to use the Clang compiler to write automated refactoring tools. She performed a live demo, demonstrating how Compiler Explorer can be used to assist with writing such tools.