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.

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 page, or browse and filter all release notes in the Google Cloud Console.

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/gke-no-channel-release-notes.xml

May 12, 2021

(2021-R16) Version updates

  • Version 1.19.9-gke.1400 is now the default version.
  • Version 1.17.17-gke.7800 is now available.
  • Version 1.19.10-gke.1000 is now available.
  • The following versions are no longer available:
    • 1.18.15-gke.1501
    • 1.18.15-gke.1502
    • 1.18.16-gke.1201
    • 1.18.16-gke.2100
    • 1.18.16-gke.300
    • 1.18.16-gke.302
    • 1.18.16-gke.502
  • The following control planes and nodes with auto-upgrade enabled will be upgraded with this release:

May 04, 2021

(2021-R15) Version updates

  • Version 1.18.17-gke.100 is now the default version.
  • Version 1.17.17-gke.7200 is now available.
  • The following versions are no longer available:
    • 1.16.15-gke.12500
    • 1.16.15-gke.14800
    • 1.17.17-gke.1101
    • 1.17.17-gke.1500
    • 1.17.17-gke.2800
    • 1.17.17-gke.3000
  • The following control planes and nodes with auto-upgrade enabled will be upgraded with this release:

April 27, 2021

(2021-R14) Version updates

April 20, 2021

(2021-R13) Version updates

April 14, 2021

(2021-R12) Version updates

April 06, 2021

(2021-R11) Version updates

March 29, 2021

(2021-R10) Version updates

  • Version 1.17.17-gke.2800 is now the default version.
  • The following versions are now available:
  • The following versions are no longer available:
    • 1.15.12-gke.6002
    • 1.16.15-gke.10600
    • 1.16.15-gke.11800
    • 1.16.15-gke.7801
    • 1.17.15-gke.800
    • 1.17.17-gke.1100
    • 1.18.12-gke.1210
    • 1.18.14-gke.1200
    • 1.18.14-gke.1600
    • 1.18.15-gke.1100
    • 1.18.15-gke.1102
    • 1.18.15-gke.1500
    • 1.18.16-gke.1200
    • 1.18.16-gke.500
  • Control planes and nodes with auto-upgrade enabled will be upgraded from versions 1.17 and earlier to version 1.17.17-gke.2800 with this release.
  • Control planes and nodes with auto-upgrade enabled will be upgraded from version 1.18 to version 1.18.16-gke.302 with this release.

March 23, 2021

Starting tomorrow, March 24, 2021, the mechanism we use to create GKE release notes will change. Although this change does not affect the content of the notes, it does affect the presentation and underlying syntax. If you subscribe to the XML feed for this page, entries for March 24 and earlier will be updated as a result of changes to formatting and syntax; the content itself did not change.

The feed URL will also change from https://cloud.google.com/feeds/kubernetes-engine-release-notes.xml to https://cloud.google.com/feeds/gke-main-release-notes.xml. We will automatically redirect from the old URL to the new one.

March 16, 2021

(2021-R9) Version updates

March 05, 2021

(2021-R8) Version updates

February 25, 2021

(2021-R7) Version updates

February 17, 2021

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

(2021-R6) Version updates

  • 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 09, 2021

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.

(2021-R5) Version updates

  • 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. 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 02, 2021

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.

(2021-R4) Version updates

January 25, 2021

(2021-R3) Version updates

  • 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

March 3, 2021 update: This release note was updated to add version 1.17.16- gke.1300, which was made available in this release.

(2021-R2) Version updates

January 08, 2021

(2021-R1) Version updates

  • 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 updates

  • 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 07, 2020

(R40) Version updates

December 01, 2020

(R39) Version updates

  • 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

This note was updated on November 24, 2020.

(R38) Version updates

November 12, 2020

(R37) Version updates

November 06, 2020

October 28, 2020

(R35) Version updates

  • 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 updates

October 12, 2020

(R33) Version updates

October 02, 2020

(R32) Version updates

  • 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 updates

  • 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 updates

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

September 14, 2020

(R29.1) Version updates

September 03, 2020

(R29) Version updates

  • 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) Version updates

  • 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 updates

August 06, 2020

(R26) Version updates

July 28, 2020

(R25) Version updates

July 22, 2020

(R24) Version updates

July 13, 2020

(R23) Version updates

June 29, 2020

June 23, 2020

June 08, 2020

June 01, 2020

May 19, 2020

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

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 01, 2020

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

March 16, 2020

March 06, 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 04, 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 07, 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