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.