The cloud.ca team has been actively researching and investigating the announcement of the Meltdown and Spectre vulnerabilities earlier this week. As a result, we are currently testing a newly released XenServer hypervisor patch that provides for some mitigation related to these issues. If this goes well, we'd likely move forward with an emergency maintenance early next week to begin updating our data centre environments. This would be expected to be a non-impactful maintenance.
However, this is a multi-facted issue, that will require a multi-faceted approach to more thorough mitigation:
We will post more details on our maintenance plan and schedule as soon as this has been formalized.