Hello,
due to a critical vulnerability (
https://www.cloudfoundry.org/blog/cve-2019-9893/) we will upgrade the container runtime of Cloud Foundry today. We will also use this opportunity to fix a rare issue with service backups.
We do not expect downtime during the upgrade for apps, but as the service instances are restarted, single service instances will be unavailable for likely less than 1 min.
Kind regards,
Michael Both