Rancher Upgrade v2.10.3

As part of this maintenance, we will be updating Rancher (prod.rancher.gwdg.de) from version 2.9.3 to version 2.10.3.
During the maintenance, there may be brief interruptions in access to Rancher. Your Kubernetes clusters will not be affected and your services will continue to run as usual. After the upgrade, you will be automatically logged out and have to log in again.

A detailed list of the changes in version 2.10.3 can be found at https://github.com/rancher/rancher/releases/tag/v2.10.3