The Netlify CLI has undergone significant improvements, becoming stable, robust, and ready for teams to integrate into their daily development workflows. The new version 8.1 offers various features such as automatically detecting frameworks, pulling in environment variables, running serverless functions, previewing headers and redirects, and starting a Netlify Live tunnel for real-time collaboration. These features enable developers to debug locally, test headers and edge logic, and easily collaborate with team members on issues, making the local development process more productive and efficient.