GKE Updates Cluster Versions and Deprecates Older Releases

(2026-R22) Security updates This release includes new GKE versions that use updated Container-Optimized OS images. These updated images are cumulative, incorporating security fixes from all Container-Optimized OS versions released since the previous GKE release. To identify the specific vulnerabilities that were resolved in each updated Container-Optimized OS image, see the Security release notes for that image. The following table includes links to the release notes for each updated Container-Optimized OS image: GKE version Container-Optimized OS version Details 1.34.8-gke.1218000 cos-125-192

GKE Gateway now supports frontend mTLS (client certificate validation). Frontend mTLS allows the Gateway to authenticate client-presented certificates. This feature is available for the following GatewayClasses: gke-l7-global-external-managed gke-l7-regional-external-managed gke-l7-rilb For more information, see Configure frontend mTLS for a Gateway .

(2026-R22) Version updates GKE cluster versions have been updated. New versions available for upgrades and new clusters. The following versions are now available for new GKE clusters, and for manual control plane upgrades and node upgrades for existing clusters. For more information about versioning and upgrades, see GKE versioning and support and About GKE cluster upgrades . Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.36.0-gke.24

(2026-R22) Version updates Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.34.7-gke.1055000 is now the default version for cluster creation in the Stable channel. The following versions are no longer available in the Stable channel: 1.33.11-gke.1013000 is deprecated in the Stable channel. This version will be removed in 90 days, or at the end of support, if sooner. 1.34.6-gke.1307000 Clusters in this channel running the listed minor v

(2026-R22) Version updates Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.35.3-gke.2190000 is now the default version for cluster creation in the Regular channel. The following versions are now available in the Regular channel: 1.33.12-gke.1000000 1.34.8-gke.1000000 1.35.5-gke.1000000 The following versions are no longer available in the Regular channel: 1.33.11-gke.1074000 1.34.7-gke.1055000 1.35.3-gke.1389002 Clusters in this chann

(2026-R22) Version updates Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.36.0-gke.2459000 is now the default version for cluster creation in the Rapid channel. The following versions are now available in the Rapid channel: 1.33.12-gke.1116000 1.34.8-gke.1218000 1.35.5-gke.1163000 1.36.0-gke.2684000 The following versions are no longer available in the Rapid channel: 1.33.12-gke.1000000 1.34.8-gke.1000000 1.35.5-gke.1000000 1.36.0-gk

(2026-R22) Version updates Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.35.3-gke.2190000 is now the default version for cluster creation. The following versions are now available: 1.33.12-gke.1116000 1.34.8-gke.1218000 1.35.5-gke.1163000 The following node versions are now available: 1.30.14-gke.2608000 1.31.14-gke.1986000 1.32.13-gke.1657000 1.33.12-gke.1116000 1.34.8-gke.1218000 1.35.5-gke.1163000 The following versions are no lo

(2026-R22) Version updates Note : Your clusters might not have these versions available. Rollouts are already in progress when we publish the release notes, and can take multiple days to complete across all Google Cloud zones. Version 1.35.3-gke.2190000 is now the default version for cluster creation in the Extended channel. The following versions are now available in the Extended channel: 1.30.14-gke.2530000 1.30.14-gke.2608000 1.31.14-gke.1942000 1.31.14-gke.1986000 1.32.13-gke.1551000 1.32.13-gke.1657000 1.33.12-gke.1000000 1.34.8-gke.1000000 1.35.5-gke.1000000 The following versions are no