Finally, GKE-OP and Anthos 1.4 went GA today! Some super expected features came out:

• Updated to Kubernetes 1.16
• Simplified upgrade
• Improved installation and cluster configuration
• Improved disaster recovery capabilities
• Enhanced monitoring with Cloud Monitoring (formerly Stackdriver)
  • Enables vSphere resource metrics collection by default!

• Support for a vSphere folder (Preview) – should help with narrowing previlages needed on vSphere!
• Improves the cluster scalability by supporting a maximum of 10

Release notes you can find here:

https://cloud.google.com/anthos/gke/docs/on-prem/release-notes