Amazon CodeCatalyst is a new software development service on AWS that streamlines the entire development process. It integrates tools for tracking issues, coding, building, testing, and deploying applications, making it faster and easier to go from planning to production. With CodeCatalyst, teams can launch cloud-based development projects complete with code repositories, CI/CD pipelines, and issue trackers, along with the necessary infrastructure and environments for collaboration. This comprehensive solution aims to simplify and accelerate software development workflows on AWS.