EMK Upgrade

Scheduled Maintenance Report for Cyso Cloud

Postmortem

Our Managed Kubernetes stack was upgraded to v867.1 containing the following noteworthy changes:

Support for Kubernetes v1.31
Cilium CNI is upgraded to v1.16.2 and now comes preinstalled with Envoy Proxy with support for Network Policies with L7 functionality and more
Calico CNI is upgraded to v3.28.2 with support for node to node encryption using Wireguard tunnels
Support for Structured Authentication Configuration allowing for multiple identity providers, multiple audiences and more
Lots of bug fixes and optimizations making our Manged Kubernetes API and control planes a lot faster

Posted Mar 27, 2025 - 11:58 CET

Completed

The scheduled maintenance has been completed.

Posted Mar 25, 2025 - 16:00 CET

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Mar 25, 2025 - 10:00 CET

Scheduled

# EMK Upgrade

We are performing a scheduled maintenance on Tuesday 25 March, 2025 to upgrade Enterprise Managed Kubernetes.

start: 2025-03-25 10:00:00
end: 2025-03-25 16:00:00

## Improvements

Our Managed Kubernetes substack will undergo a minor upgrade. Support for Kubernetes v1.31. Support for node to node encryption using Wireguard when using the Calico CNI. Support for Structured Authentication in Kubernetes v1.30+ clusters. Finally, lots of bug fixes and performance improvements.

## Impact

Our engineers make every effort to minimize system impact. Starting at 10:00, the following impact can be expected. The EMK API endpoint may not be able to process your request. The kube-apiserver endpoint of your cluster may not be able to process your request. EMK clusters will not be able to autoscale during maintenance. While it’s important to be aware of the start and end times of the maintenance window we are confident to complete these changes with minimal impact.

## User Action

Please refrain from making changes to your EMK resources during the given start and end times. EMK clusters will not be able to autoscale during maintenance, if you anticipate an increase in workload please pre-scale your cluster accordingly.

## Updates

If you require any additional information or experience any issues after this maintenance window, please contact our support team at support@cyso.cloud. We will do our best to assist you.

We will keep you posted through our status page: https://status.cyso.cloud.

Posted Mar 11, 2025 - 12:04 CET

This scheduled maintenance affected: Enterprise Managed Kubernetes Services.