Due to upgrade issues with the Envoy gateway and the offline installation environments, upgrading to MKE 4k 4.1.3 is not recommended. These issues are fixed in the 4.1.4 release. For version 4.1.3, Mirantis only supports fresh installations.

Release notes

The MKE 4k version 4.1.3 release introduces significant architectural shifts, most notably the transition from Ingress NGINX to Envoy Gateway, alongside enhanced security features such as SELinux support and improved disaster recovery capabilities.

Release Date	Version	Highlights
05-MAR-2026	4.1.3	Netowrking and ingress evolution (RBAC) Security and compliance improvements Introduction of disaster recovery processes Component updates

• Features summary
• Enhancements
• Addressed issues
• Known issues
• Major component versions