ITIL is a framework that provides best practices for IT service management. It focuses on standardizing processes and procedures to improve efficiency. DevOps is a software development practice that emphasizes collaboration between development and operations teams. Some believe DevOps will replace ITIL because it streamlines processes and enables faster delivery of software updates through automation and collaboration. However, others argue ITIL and DevOps can coexist, with ITIL providing governance and DevOps improving agility through cultural and technological changes.