We've made significant changes to Replit's port management system to improve predictability and user experience. Ports are now explicitly mapped, making it easier to run multiple services in the same Repl and deploy them securely. We've also introduced contextual notifications and actions when a port is opened, allowing users to view and switch ports in the Webview preview. Additionally, we've built a networking tool that displays the current port configuration state, making it easier for users to manage their ports. The new system warns users of non-ideal port configurations during deployment and provides guidance on resolving them. This update aims to make Replit's port management more transparent and user-friendly, enabling users to create complex templates with predictability and security.