The updated Kubernetes integration (v3) significantly reduces CPU and memory usage, adds support for external control planes like Rancher, and improves log messages to help identify issues. The new integration provides a 80% reduction in memory footprint, improved troubleshooting with enhanced logs and process cycle, more configurable components, and flexible scraping intervals. To upgrade the integration, users can run a single command using Helm, and no configuration updates are required. The new integration follows Kubernetes best practices and includes improvements such as decoupled component configuration, reduced complexity in the cache system, and support for complex data structures. The updated architecture allows for smarter decision-making at scheduling and deployment time, ensuring that issues are detected more easily.