Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

MOSK cluster components compatibility

The tables below provides the insight into the versions of the components running on a MOSK cluster.

MOSK 25.1 series

MOSK cluster	25.1 (17.4.0)	25.1.1 (17.4.6)
Release date	2025-03-11	2025-08-11
Mirantis Kubernetes Engine	3.7.19	3.7.24
Kubernetes	1.27	1.27
Mirantis Container Runtime	25.0.8	25.0.8
Ubuntu	22.04	22.04
Linux Kernel 0	5.15.0-131-generic	5.15.0-143-generic
Mirantis StackLight 1	0.17.2	0.17.15
OpenStack 2	Caracal, Antelope Deprecated	Caracal, Antelope Deprecated
Tungsten Fabric	21.4, OpenSDN 24.1 TechPreview	21.4, OpenSDN 24.1 TechPreview
Ceph	Reef 18.2.4-12.cve	Reef 18.2.7-3.cve

0

The kernel version of the host operating system validated by Mirantis and confirmed to be working for the supported use cases. Usage of custom kernel versions or third-party vendor-provided kernels, such as FIPS-enabled, assume full responsibility for validating the compatibility of components in such environments.

1

The StackLight version is represented by the tag of the stacklight Helm chart, which includes information about all StackLight components.

2

The LTS duration of an OpenStack version is two years. For support timeline for different OpenStack versions, refer to OpenStack support cycle.