GKE No Channel version(1.27.16-gke.1342000) is nolonger supported

Hi Community team,

My cluster is running on “No Channel” with GKE version (1.26.10-gke.1101000) and it’s showing upgrade for (1.27.16-gke.1342000) which is no longer supported as per https://cloud.google.com/kubernetes-engine/docs/release-notes-nochannel.

Can we upgrade to this version without any downtime?