We have successfully upgraded the nodes. Please inform us if you encounter any issues.

Greetings
Sven Schmidt

We will now start rebooting instances and will notify you in case anything out of the ordinary happens.

Greetings,

to mitigate a critical security bug, we are planning to upgrade all hosts during the morning. While we do not expect any impact on availability, all app instances will be restarted at least once. We suggest that you scale your applications to at least 2 instances to prevent downtime of your apps.

Greetings
Sven Schmidt
Technical Lead anynines Platform as a Service

http://seclists.org/oss-sec/2017/q1/471