Vercel for GitHub introduces Auto Job Cancelation, which allows the latest commit to be built immediately, reducing build times and deployment delays. This new behavior is now enabled by default, but users can opt-out if they prefer a sequential build process. The change aims to provide quicker deployments for projects with frequent commits. Users can configure this option in their `vercel.json` file. The goal of Vercel is to provide the fastest possible deployments for any project.