Release notes (No channel)

This page documents updates to releases that are not part of a release channel, that is, Static (No Channel). You can periodically check this page for announcements about new or updated features, bug fixes, known issues, and deprecated functionality. The overall Release Notes page also includes the information in this page.

GKE follows a predictable multi-day rollout schedule for making new versions available, as well as auto-upgrading cluster control planes and nodes. For more information, see the Rollout schedule.

For more detailed information about security-related known issues, see the security bulletin page.

To view release notes for versions prior to 2020, see the Release notes archive.

You can see the latest product updates for all of Google Cloud on the Google Cloud release notes page.

To get the latest product updates delivered to you, add the URL of this page to your feed reader, or add the feed URL directly: https://cloud.google.com/feeds/kubernetes-engine-no-channel-release-notes.xml

February 17, 2021 (2021-R6)

This note was updated on February 23, 2021. Version 1.15.12-gke.6002 is still available in this channel for R6.

Version 1.16.15-gke.11800 is now available.

Version 1.17.17-gke.1500 is now available.

Version 1.18.15-gke.1500 is now available.

Version 1.16.15-gke.6000 is no longer available.

Version 1.16.15-gke.6900 is no longer available.

Version 1.16.15-gke.7300 is no longer available.

Version 1.17.14-gke.1600 is no longer available.

Version 1.17.15-gke.300 is no longer available.

Version 1.18.12-gke.1205 is no longer available.

Version 1.18.15-gke.800 is no longer available.

Auto-upgrading control planes automatically upgrade from version 1.15 to version 1.16.15-gke.7800 with this release.

February 9, 2021 (2021-R5)

This note was updated on February 23, 2021 to include the following control plane auto-upgrades for this channel: 1.15 to 1.16.15-gke.6000 and 1.16 and 1.17 to 1.17.15-gke.800. The node upgrades from 1.15, 1.16, and 1.17 to version 1.17.15-gke.800 were added to this channel.

Version 1.17.15-gke.800 is now available. This version is now the default.

Version 1.16.15-gke.11000 is now available.

Version 1.17.17-gke.1100 is now available.

Version 1.18.12-gke.1210 is now available.

Version 1.18.15-gke.1100 is now available.

Version 1.16.15-gke.4901 is no longer available.

Version 1.17.14-gke.400 is no longer available.

Auto-upgrading control planes automatically upgrade from version 1.15 to version 1.16.15-gke.6000 with this release.

Auto-upgrading control planes automatically upgrade from version 1.16 to version 1.17.15-gke.800 with this release.

Auto-upgrading control planes automatically upgrade from version 1.17 to version 1.17.15-gke.800 with this release.

Auto-upgrading nodes automatically upgrade from version 1.15 to version 1.17.15-gke.800 with this release.

Auto-upgrading nodes automatically upgrade from version 1.16 to version 1.17.15-gke.800 with this release.

Auto-upgrading nodes automatically upgrade from version 1.17 to version 1.17.15-gke.800 with this release.

Auto-upgrading nodes automatically upgrade from version 1.18 to version 1.18.12-gke.1206 with this release.

February 2, 2021 (2021-R4)

This note was updated on February 10, 2021. The node auto-upgrade from 1.15 to version 1.16.15-gke.6000 was removed from this channel.

Version 1.16.15-gke.10600 is now available.

Version 1.17.17-gke.600 is now available.

Version 1.18.15-gke.800 is now available.

Version 1.17.14-gke.1200 is no longer available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.18 to version 1.18.12-gke.1205 with this release.

January 25, 2021 (2021-R3)

Version 1.17.16-gke.1600 is now available.

Version 1.18.14-gke.1600 is now available.

Version 1.17.13-gke.2600 is no longer available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.17 to version 1.17.14-gke.1600 with this release.

January 19, 2021 (2021-R2)

Version 1.18.12-gke.1201 is now available.

Version 1.18.12-gke.1205 is now available.

Version 1.18.14-gke.1200 is now available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.15 to version 1.16.15-gke.6000 with this release.

January 8, 2021 (2021-R1)

Version 1.16.15-gke.6000 is now available. This version is now the default.

Version 1.17.14-gke.400 is now available.

Version 1.14.10-gke.50 is no longer available.

Version 1.14.10-gke.902 is no longer available.

Version 1.14.10-gke.1504 is no longer available.

Version 1.15.12-gke.20 is no longer available.

Version 1.15.12-gke.4000 is no longer available.

Version 1.15.12-gke.4002 is no longer available.

Version 1.15.12-gke.5000 is no longer available.

Version 1.15.12-gke.6001 is no longer available.

Version 1.16.15-gke.4300 is no longer available.

Version 1.16.15-gke.4301 is no longer available.

Version 1.16.15-gke.5500 is no longer available.

Version 1.17.13-gke.2001 is no longer available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.14 to version 1.15.12-gke.6002 with this release.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.16 to version 1.16.15-gke.6000 with this release.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.17 to version 1.17.14-gke.400 with this release.

December 14, 2020 (R41)

Version 1.16.15-gke.7300 is now available.

Version 1.17.14-gke.1600 is now available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.14 to version 1.15.12-gke.6001 with this release.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.16 to version 1.16.15-gke.4300 with this release.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.17 to version 1.17.13-gke.2600 with this release.

December 7, 2020 (R40)

Version 1.15.12-gke.6002 is now available.

Version 1.16.15-gke.6900 is now available.

Version 1.17.14-gke.1200 is now available.

Version 1.18.12-gke.1200 is now available.

This version is available in preview.

Version 1.19.4-gke.1200 is now available.

This version is available in preview. Before creating GKE v1.19 clusters, you must review the known issues and urgent upgrade notes.

Auto-upgrading nodes automatically upgrade from version 1.14 to version 1.15.12-gke.6001 with this release.

Auto-upgrading nodes automatically upgrade from version 1.16 to version 1.16.15-gke.4300 with this release.

Auto-upgrading nodes automatically upgrade from version 1.17 to version 1.17.13-gke.2001 with this release.

Version 1.19.4-gke.700 is no longer available.

December 1, 2020 (R39)

Version 1.16.15-gke.4301 is now available.

Version 1.16.15-gke.6000 is now available.

Version 1.17.13-gke.1401 is now available.

Version 1.17.14-gke.400 is now available.

This release sets sysctl net.netfilter.nf_conntrack_tcp_be_liberal=1 on the node image. This discourages netfilter from resetting TCP connections.

Version 1.19.4-gke.700 is now available.

This version is available in preview. Before creating GKE v1.19 clusters, you must review the known issues and urgent upgrade notes.

Version 1.19.3-gke.2100 is no longer available.

Version 1.19.3-gke.2700 is no longer available.

Auto-upgrading nodes in the no channel automatically upgrade from version 1.17 to version 1.17.13-gke.1401 with this release.

November 24, 2020

The November 17, 2020 release removed the following GKE versions.

Version 1.16.13-gke.401 is no longer available.

Version 1.19.3-gke.1500 is no longer available.

November 17, 2020 (R38)

This note was updated on November 24, 2020.

Version 1.16.15-gke.5500 is now available.

Version 1.17.13-gke.2600 is now available.

Version 1.19.3-gke.2700 is now available.

This version is available in preview. Before creating GKE v1.19 clusters, you must review the known issues and urgent upgrade notes.

November 12, 2020 (R37)

Version 1.16.15-gke.4901 is now available.

Version 1.17.13-gke.2001 is now available.

Version 1.19.3-gke.2100 is now available.

This version is available in preview. Before creating GKE v1.19 clusters, you must review the known issues and urgent upgrade notes.

Version 1.16.13-gke.404 is the new default version.

November 6, 2020

Version 1.16.13-gke.404 is now available.

Version 1.16.15-gke.4300 is now available.

Version 1.17.13-gke.1400 is now available.

Version 1.19.3-gke.1500 is now available.

This version is available in preview. Before creating GKE v1.19 clusters, you must review the known issues and urgent upgrade notes.

October 28, 2020 (R35)

Version 1.16.15-gke.3500 is now available.

Version 1.17.13-gke.600 is now available.

Version 1.19.3-gke.2 is now available.

Auto-upgrading nodes and control planes upgrade from version 1.14 to version 1.15.12-gke.20 during this release.

Auto-upgrading nodes and control planes upgrade from version 1.17 to version 1.17.12-gke.1504 during this release.

October 20, 2020 (R34)

Version 1.14.10-gke.1504 is now available.

Version 1.15.12-gke.4002 is now available.

Version 1.15.12-gke.6001 is now available.

Version 1.16.13-gke.403 is now available.

Version 1.16.15-gke.2601 is now available.

Version 1.17.12-gke.1504 is now available.

Version 1.17.12-gke.2502 is now available.

Auto-upgrading nodes and control planes upgrade from version 1.14 to version 1.15.12-gke.20 during this release.

Auto-upgrading control planes upgrade from version 1.15 to version 1.16.13-gke.401 during this release.

October 12, 2020 (R33)

Version 1.14.10-gke.901 is now available.

Version 1.15.12-gke.5000 is now available.

Version 1.16.15-gke.1600 is now available.

Version 1.17.12-gke.1501 is now available.

Auto-upgrading nodes and control planes upgrade from version 1.14 to version 1.15.12-gke.20 during this release.

October 02, 2020 (R32)

Version 1.15.12-gke.4000 is now available.

Version 1.16.15-gke.500 is now available.

Version 1.17.12-gke.500 is now available.

Version 1.16.13-gke.401 is the new default version for clusters with no channel.

Auto-upgrading control planes upgrade from version 1.14 to version 1.14.10-gke.50 during this release.

Auto-upgrading control planes upgrade from version 1.15 to version 1.15.12-gke.20 during this release.

Auto-upgrading nodes control planes upgrade from version 1.16 to version 1.16.13-gke.401 during this release.

September 25, 2020 (R31)

Version 1.17.9-gke.6300 is now available.

Auto-upgrading control planes upgrade from version 1.16 to version 1.16.13-gke.401 during this release.

Auto-upgrading control planes upgrade from version 1.17 to version 1.17.9-gke.1504 during this release.

September 15, 2020 (R30)

Version 1.15.12-gke.20 is the new default version for clusters with no channel.

September 14, 2020 (R29.1)

Version 1.14.10-gke.50 is now available.

Version 1.15.12-gke.20 is now available.

Version 1.16.13-gke.401 is now available.

September 3, 2020 (R29)

Version 1.15.12-gke.17 is now available.

Version 1.16.13-gke.400 is now available.

Auto-upgrading nodes upgrade from version 1.14 to version 1.15.12-gke.2 during this release if they have not already done so.

August 27, 2020 (R28)

Auto-upgrading nodes begin upgrading from version 1.14 to version 1.15.12-gke.2 in this release. The auto-upgrades will continue gradually over the course of several releases.

August 20, 2020 (R27)

Version 1.18.6-gke.2100 is now available.

This version is available in preview. Before creating GKE 1.18 clusters, you must review the known issues and urgent upgrade notes.

August 06, 2020 (R26)

Version 1.15.12-gke.16 is now available.

Version 1.18.6-gke.1500 is now available.

This version is available in preview. Before creating GKE 1.18 clusters, you must review the known issues and urgent upgrade notes.

July 28, 2020 (R25)

Version 1.15.12-gke.13 is now available.

Version 1.16.13-gke.1 is now available.

This version includes node image upgrades for Ubuntu (ubuntu-gke-1804-1-16-v20200610).

Version 1.18.6-gke.500 is now available.

This version is available in preview. Before creating GKE 1.18 clusters, you must review the known issues and urgent upgrade notes.

July 22, 2020 (R24)

Version 1.18.4-gke.1201 is now available.

This version is available in preview. Before creating GKE 1.18 clusters, you must review the known issues and urgent upgrade notes.

July 13, 2020 (R23)

Version 1.14.10-gke.46 is now available.

Version 1.15.12-gke.9 is now available.

Version 1.16.11-gke.5 is now available.

June 29, 2020

1.14.10-gke.45 is now available.

1.15.12-gke.6 is now available.

1.16.10-gke.8 is now available.

June 23, 2020

1.14.10-gke.42 is now available.

1.15.12-gke.3 is now available.

June 8, 2020

1.14.10-gke.41 is now available.

1.15.11-gke.17 is now available.

1.15.12-gke.2 is now available.

1.16.9-gke.6 is now available.

June 1, 2020

1.14.10-gke.40 is now available.

1.15.11-gke.15 is now available.

1.16.9-gke.2 is now available.

May 19, 2020

1.16.8-gke.17 is now available.

1.15.11-gke.14 is now available. In clusters using version 1.15.11-gke.14, NodeLocal DNSCache now reaches out to custom stubDomains using UDP. For more information, see Setting up NodeLocal DNSCache.

May 13, 2020

1.15.11-gke.13 is now available.

1.16.8-gke.15 is now generally available for new clusters. Existing clusters and nodes will not automatically upgrade in this release.

Important: Before you migrate to GKE 1.16, you must review:

May 04, 2020

1.15.11-gke.12 is now available.

April 27, 2020

1.14.10-gke.37 is now available.

1.15.11-gke.11 is now available.

April 15, 2020

1.14.10-gke.36 is now available.

1.15.11-gke.9 is now available. This version updates Calico to 3.8.7. This version fixes an issue where Calico Pods would fail to initialize after restarting. The issue occurred because the Calico CNI script tried to overwrite a file which was referenced by Kubelet at the same time. For more information on the fix, see the open source documentation.

1.17.4-gke.6 is now available in alpha clusters.

April 07, 2020

1.15.11-gke.5 is now available.

April 1, 2020

1.14.10-gke.34 is now available.

1.15.11-gke.3 is now available.

1.17.4-gke.2 preview is now available.

Before creating GKE 1.17 clusters, you must review the known issues and urgent upgrade notes.

March 26, 2020

1.15.11-gke.1 is now available. The node image for Container-Optimized OS is updated to cos-77-12371-183-0.

March 20, 2020

1.14.10-gke.32 is now available.

1.15.9-gke.26 is now available.

1.17.3-gke.7 is now available to preview. is now available.

Before creating GKE 1.17 clusters, you must review the known issues and urgent upgrade notes.

March 16, 2020

1.14.10-gke.30 is now available.

1.15.9-gke.24 is now available.

1.17.3-gke.4 is now available for preview.

Before creating GKE 1.17 clusters, you must review the known issues and urgent upgrade notes.

March 6, 2020

v.1.13.x
  • There are no new 1.13 versions this week.
v.1.14.x
v.1.15.x

February 25, 2020

v.1.13.x
  • There are no new 1.13 versions this week.
v.1.14.x
  • 1.14.10-gke.17
v.1.15.x
  • 1.15.9-gke.12

February 18, 2020

v.1.13.x
  • 1.13.12-gke.30
v.1.14.x
  • 1.14.10-gke.24
v.1.15.x
  • 1.15.9-gke.9

Node image for Container-Optimized OS updated to cos-77-12371-141-0.

February 11, 2020

v.1.13.x
  • 1.13.12-gke.25
v.1.14.x
  • 1.14.10-gke.17
v.1.15.x
  • 1.15.9-gke.8

February 4, 2020

v.1.13.x
  • There are no new 1.13 versions this week.
v.1.14.x
  • 1.14.10-gke.21
v.1.15.x
  • 1.15.8-gke.3

January 29, 2020

v.1.13.x
  • There are no new 1.13 versions this week.
v.1.14.x
  • There are no new 1.14 versions this week.
v.1.15.x
  • 1.15.8-gke.2

January 22, 2020

v.1.13.x
  • 1.13.11-gke.23
  • 1.13.12-gke.25
v.1.14.x
  • 1.14.7-gke.40
  • 1.14.8-gke.33
  • 1.14.9-gke.23
  • 1.14.10-gke.17
v.1.15.x
  • 1.15.7-gke.23

January 7, 2020

v.1.13.x
  • 1.13.12-gke.17
v.1.14.x
  • 1.14.10-gke.0
v.1.15.x
  • 1.15.7-gke.2