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 the needs of your deployment, you can either update between only major Cluster releases, or update between the major Cluster releases receiving the patch updates in between.

Select the second option, which includes patch updates, only if you want to receive security fixes as soon as they become available and you are prepared to update your cluster often, approximately once in two 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


2.25.4

Jan 10, 2024

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

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

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

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

  • 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

  • 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

2.24.5

Sep 26, 2023

Container Cloud 2.24.4 is the third patch release of the 2.24.x and MOSK 23.2.x release series that introduces the following updates:

  • Patch Cluster release 15.0.4 for MOSK 23.2.3

  • Patch Cluster release 14.0.4

  • Security fixes for CVEs of Critical and High severity

2.24.4

Sep 14, 2023

Container Cloud 2.24.4 is the second patch release of the 2.24.x and MOSK 23.2.x release series that introduces the following updates:

  • Patch Cluster release 15.0.3 for MOSK 23.2.2

  • Patch Cluster release 14.0.3

  • Multi-rack topology for bare metal managed clusters

  • Configuration of the etcd storage quota

  • Security fixes for CVEs of Critical and High severity

2.24.3

Aug 29, 2023

Container Cloud 2.24.3 is the first patch release of the 2.24.x and MOSK 23.2.x release series that introduces the following updates:

  • Patch Cluster release 15.0.2 for MOSK 23.2.1

  • Patch Cluster release 14.0.2

  • Support for MKE 3.6.6 and updated docker-ee-cli 20.10.18 for MCR 20.10.17

  • Security fixes for CVEs of High severity

  • End of support for new deployments on deprecated major or patch Cluster releases

For details, see Patch releases.

2.24.2

Aug 21, 2023

Based on 2.24.1, Container Cloud 2.24.2:

  • Introduces the major Cluster release 15.0.1 that is based on 14.0.1 and supports Mirantis OpenStack for Kubernetes (MOSK) 23.2.

  • Supports the Cluster release 14.0.1. The deprecated Cluster release 14.0.0 and the 12.7.x along with 11.7.x series are not supported for new deployments.

  • Contains features and amendments of the parent releases 2.24.0 and 2.24.1.

2.24.1

Jul 27, 2023

Patch release containing hot fixes for the major Container Cloud release 2.24.0.

2.24.0

Jul 20, 2023

  • Support for MKE 3.6.5 and MCR 20.10.17

  • Bare metal:

    • Automated upgrade of operating system on management and regional clusters

    • Support for WireGuard

    • Configuration of MTU size for Calico

    • MetalLB configuration changes

  • vSphere:

    • Support for RHEL 8.7

    • MetalLB configuration changes

  • OpenStack:

    • Custom flavors for Octavia

    • Deletion of persistent volumes during a cluster deletion

  • IAM:

    • Support for Keycloak Quarkus

  • Security:

    • Support for auditd

    • Enhancements for TLS certificates configuration

  • LCM:

    • Custom host names for cluster machines

    • Cache warm-up for managed clusters

  • Ceph:

    • Automatic upgrade of Ceph from Pacific to Quincy

    • Ceph non-admin client for a shared Ceph cluster

    • Dropping of redundant components from management and regional clusters

    • Documentation enhancements for Ceph OSDs

  • StackLight:

    • Major version update of OpenSearch and OpenSearch Dashboards from 1.3.7 to 2.7.0

    • Monitoring of network connectivity between Ceph nodes

    • Improvements to StackLight alerting

    • Performance tuning of Grafana dashboards

    • Dropped and white-listed metrics

  • Container Cloud web UI:

    • Graceful cluster reboot

    • Creation and deletion of bare metal host credentials

    • Node labeling improvements

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