Release Notes

Major and patch versions update path

The primary distinction between major and patch product versions lies in the fact that major release versions introduce new functionalities, whereas patch release versions predominantly offer minor product enhancements, mostly CVE resolutions for your clusters.

Depending on your deployment needs, you can either update only between major Cluster releases or apply patch updates between major releases. Choosing the latter option ensures you receive security fixes as soon as they become available. Though, be prepared to update your cluster frequently, approximately once every three weeks. Otherwise, you can update only between major Cluster releases as each subsequent major Cluster release includes patch Cluster release updates of the previous major Cluster release.

Releases summary
Container Cloud release
Release date

Supported Cluster releases
Summary

2.27.4

Sep 16, 2024
17.2.4
16.2.4

17.2.0
16.2.0

17.1.0
16.1.0

17.2.3
17.1.7
17.1.6
17.1.5
16.2.3
16.2.2
16.2.1
16.1.7
16.1.6
16.1.5

Container Cloud 2.27.4 is the fourth patch release of the 2.27.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.2.4 and 17.2.4 that represents MOSK patch release 24.2.2.

  • Bare metal: update of Ubuntu mirror to ubuntu-2024-08-21-014714 along with update of minor kernel version to 5.15.0-119-generic.

  • Security fixes for CVEs in images.

2.27.3

Aug 27, 2024
17.2.3
16.2.3

17.2.0
16.2.0

17.1.0
16.1.0

17.1.7
17.1.6
17.1.5
16.2.2
16.2.1
16.1.7
16.1.6
16.1.5

Container Cloud 2.27.3 is the third patch release of the 2.27.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.2.3 and 17.2.3 that represents MOSK patch release 24.2.1.

  • Support for MKE 3.7.12.

  • Improvements in the MKE benchmark compliance (control ID 5.1.5).

  • Bare metal: update of Ubuntu mirror to ubuntu-2024-08-06-014502 along with update of minor kernel version to 5.15.0-117-generic.

  • VMware vSphere: suspension of support for cluster deployment, update, and attachment.

  • Security fixes for CVEs in images.

2.27.2

Aug 05, 2024
16.2.2
17.1.7
16.1.7

17.2.0
16.2.0

17.1.0
16.1.0

17.1.6
17.1.5
16.2.1
16.1.6
16.1.5

Container Cloud 2.27.2 is the second patch release of the 2.27.x release series that introduces the following updates:

  • Support for the patch Cluster release 16.2.2.

  • Support for the patch Cluster releases 16.1.7 and 17.1.7 that represents MOSK patch release 24.1.7.

  • Support for MKE 3.7.11.

  • Bare metal: update of Ubuntu mirror to ubuntu-2024-07-16-014744 along with update of minor kernel version to 5.15.0-116-generic (Cluster release 16.2.2).

  • Security fixes for CVEs in images.

2.27.1

Jul 16, 2024
16.2.1
17.1.6
16.1.6

17.2.0
16.2.0

17.1.0
16.1.0

17.1.5
16.1.5

Container Cloud 2.27.1 is the first patch release of the 2.27.x release series that introduces the following updates:

  • Support for the patch Cluster release 16.2.1.

  • Support for the patch Cluster releases 16.1.6 and 17.1.6 that represents MOSK patch release 24.1.6.

  • Support for MKE 3.7.10.

  • Support for docker-ee-cli 23.0.13 in MCR 23.0.11 to fix several CVEs.

  • Bare metal: update of Ubuntu mirror to ubuntu-2024-06-27-095142 along with update of minor kernel version to 5.15.0-113-generic.

  • Security fixes for CVEs in images.

  • Bug fixes.

2.27.0

Jul 02, 2024
17.2.0
16.2.0

17.1.0
16.1.0

17.1.5
16.1.5

  • MKE:

    • MKE 3.7.8 for clusters that follow major update path

    • Improvements in the MKE benchmark compliance

  • Bare metal:

    • General availability for Ubuntu 22.04 on bare metal clusters

    • Improvements in the day-2 management API for bare metal clusters

    • Optimization of strict filtering for devices on bare metal clusters

    • Deprecation of SubnetPool and MetalLBConfigTemplate objects

  • LCM:

    • The ClusterUpdatePlan object for a granular cluster update

    • Update groups for worker machines

    • LCM Agent heartbeats

    • Handling secret leftovers using secret-controller

    • MariaDB backup for bare metal and vSphere providers

  • Ceph:

    • Automatic upgrade from Quincy to Reef

    • Support for Rook v1.13

    • Setting a configuration section for Rook parameters

  • StackLight:

    • Monitoring of I/O errors in kernel logs

    • S.M.A.R.T. metrics for creating alert rules on bare metal clusters

    • Improvements for OpenSearch and OpenSearch Indices Grafana dashboards

    • Removal of grafana-image-renderer

2.26.5

June 18, 2024
17.1.5
16.1.5

17.1.0
16.1.0

17.1.4
17.1.3
17.1.2
17.1.1
17.0.0
16.1.4
16.1.3
16.1.2
16.1.1
16.0.0

Container Cloud 2.26.5 is the fifth patch release of the 2.26.x and MOSK 24.1.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.1.5 and 17.1.5 that represents MOSK patch release 24.1.5.

  • Bare metal: update of Ubuntu mirror to 20.04~20240517090228 along with update of minor kernel version to 5.15.0-107-generic.

  • Security fixes for CVEs in images.

  • Bug fixes.

2.26.4

May 20, 2024
17.1.4
16.1.4

17.1.0
16.1.0

17.1.3
17.1.2
17.1.1
17.0.0
16.1.3
16.1.2
16.1.1
16.0.0

Container Cloud 2.26.4 is the fourth patch release of the 2.26.x and MOSK 24.1.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.1.4 and 17.1.4 that represents MOSK patch release 24.1.4.

  • Support for MKE 3.7.8.

  • Bare metal: update of Ubuntu mirror to 20.04~20240502102020 along with update of minor kernel version to 5.15.0-105-generic.

  • Security fixes for CVEs in images.

  • Bug fixes.

2.26.3

Apr 29, 2024
17.1.3
16.1.3

17.1.0
16.1.0

17.1.2
17.1.1
17.0.0
16.1.2
16.1.1
16.0.0

Container Cloud 2.26.3 is the third patch release of the 2.26.x and MOSK 24.1.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.1.3 and 17.1.3 that represents MOSK patch release 24.1.3.

  • Support for MKE 3.7.7.

  • Bare metal: update of Ubuntu mirror to 20.04~20240411171541 along with update of minor kernel version to 5.15.0-102-generic.

  • Security fixes for CVEs in images.

  • Bug fixes.

2.26.2

Apr 08, 2024
17.1.2
16.1.2

17.1.0
16.1.0

17.1.1
17.0.0
16.1.1
16.0.0

Container Cloud 2.26.2 is the second patch release of the 2.26.x and MOSK 24.1.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.1.2 and 17.1.2 that represents MOSK patch release 24.1.2.

  • Support for MKE 3.7.6.

  • Support for docker-ee-cli 23.0.10 in MCR 23.0.9 to fix the several CVEs.

  • Bare metal: update of Ubuntu mirror to 20.04~20240324172903 along with update of minor kernel version to 5.15.0-101-generic.

  • Security fixes for CVEs in images.

2.26.1

Mar 20, 2024
17.1.1
16.1.1

17.1.0
16.1.0

17.0.0
16.0.0

Container Cloud 2.26.1 is the first patch release of the 2.26.x and MOSK 24.1.x release series that introduces the following updates:

  • Support for the patch Cluster releases 16.1.1 and 17.1.1 that represents MOSK patch release 24.1.1.

  • Delivery mechanism for CVE fixes on Ubuntu in bare metal clusters that includes update of Ubuntu kernel minor version.

  • Security fixes for CVEs in images.

2.26.0

Mar 04, 2024
17.1.0
16.1.0

17.0.0
16.0.0

17.0.4
16.0.4

  • LCM:

    • Pre-update inspection of pinned product artifacts in a Cluster object

    • Disablement of worker machines on managed clusters

    • Health monitoring of cluster LCM operations

    • Support for MKE 3.7.5 and MCR 23.0.9

  • Security:

    • Support for Kubernetes auditing and profiling on management clusters

    • Policy Controller for validating pod image signatures

    • Configuring trusted certificates for Keycloak

  • Bare metal:

    • Day-2 management API for bare metal clusters

    • Strict filtering for devices on bare metal clusters

    • Dynamic IP allocation for faster host provisioning

    • Cleanup of LVM thin pool volumes during cluster provisioning

    • Wiping a device or partition before a bare metal cluster deployment

    • Container Cloud web UI improvements

  • Ceph:

    • Support for Rook v1.12

    • Support for custom device classes

    • Network policies for Rook Ceph daemons

  • StackLight:

    • Upgraded logging pipeline

    • Support for custom labels during alert injection

  • Documentation enhancements

2.25.4

Jan 10, 2024
17.0.4
16.0.4

17.0.0
16.0.0

17.0.3
16.0.3
17.0.2
16.0.2
17.0.1
16.0.1
15.0.1
14.0.1

Container Cloud 2.25.4 is the fourth patch release of the 2.25.x and MOSK 23.3.x release series that introduces the following updates:

  • Patch Cluster release 17.0.4 for MOSK 23.3.4

  • Patch Cluster release 16.0.4

  • Security fixes for CVEs in images

2.25.3

Dec 18, 2023
17.0.3
16.0.3

17.0.0
16.0.0

17.0.2
16.0.2
17.0.1
16.0.1
15.0.1
14.0.1

Container Cloud 2.25.3 is the third patch release of the 2.25.x and MOSK 23.3.x release series that introduces the following updates:

  • Support for MKE 3.7.3

  • Patch Cluster release 17.0.3 for MOSK 23.3.3

  • Patch Cluster release 16.0.3

  • Security fixes for CVEs in images

2.25.2

Dec 05, 2023
17.0.2
16.0.2

17.0.0
16.0.0

17.0.1
16.0.1
15.0.1
14.0.1

Container Cloud 2.25.2 is the second patch release of the 2.25.x and MOSK 23.3.x release series that introduces the following updates:

  • Support for attachment of non Container Cloud based MKE clusters to vSphere-based management clusters

  • Patch Cluster release 17.0.2 for MOSK 23.3.2

  • Patch Cluster release 16.0.2

  • Security fixes for CVEs in images

2.25.1

Nov 27, 2023
17.0.1
16.0.1

17.0.0
16.0.0

15.0.1
14.1.0
14.0.1

Container Cloud 2.25.1 is the first patch release of the 2.25.x and MOSK 23.3.x release series that introduces the following updates:

  • MKE:

    • Support for MKE 3.7.2

    • Amendments for MKE configuration managed by Container Cloud

  • vSphere:

    • Switch to an external vSphere cloud controller manager

    • Mandatory MKE upgrade from 3.6 from 3.7

  • StackLight:

    • Kubernetes Network Policies

    • MKE benchmark compliance

  • Patch Cluster release 17.0.1 for MOSK 23.3.1

  • Patch Cluster release 16.0.1

  • Security fixes for CVEs in images

2.25.0

Nov 06, 2023
17.0.0
16.0.0
14.1.0

15.0.1
14.0.1
15.0.4
14.0.4

  • Container Cloud Bootstrap v2

  • Support for MKE 3.7.1 and MCR 23.0.7

  • General availability for RHEL 8.7 on vSphere-based clusters

  • Automatic cleanup of old Ubuntu kernel packages

  • Configuration of a custom OIDC provider for MKE on managed clusters

  • The management-admin role for a management cluster

  • General availability for graceful machine deletion

  • Bare metal provider:

    • General availability for MetalLBConfigTemplate and MetalLBConfig objects

    • Manual IP address allocation for bare metal hosts during PXE provisioning

  • Ceph:

    • Addressing storage devices using by-id identifiers

    • Verbose Ceph cluster status in the KaaSCephCluster.status specification

    • Detailed view of a Ceph cluster summary in web UI

  • StackLight:

    • Fluentd log forwarding to Splunk

    • Ceph monitoring improvements

    • Optimization of StackLight NodeDown alerts

    • OpenSearch performance optimization

    • Documentation: Export data from Table panels of Grafana dashboards to CSV

  • Container Cloud web UI:

    • Status of infrastructure health for bare metal and OpenStack providers

    • Parallel update of worker nodes

    • Graceful machine deletion

- Cluster release is deprecated and will become unsupported in one of the following Container Cloud releases.