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+---
+title: "CGroup Version"
+description: "More information on why CGroup version marks the installation as unsupported."
+---
+
+## The issue
+
+Supervisor depends on a particular version of Docker CGroup to be in use since
+it depends on its features to work properly.
+
+Currently Supervisor requires CGroup v1 in a supervised installation. 
+
+However, the feature set changes and improves over time and therefore, the minimal
+required version may change in the future. When that happens, it will be communicated
+before we publish a version that will require you to upgrade CGroups.
+
+## The solution
+
+In a supervised installation if you have switched to CGroup v2 you will need to
+revert what you did. Or you can re-run the [supervised installer](https://github.com/home-assistant/supervised-installer)
+to fix it.
+
+You should never see this issue on Home Assistant OS as all versions of the OS
+ship with a supported CGroup version.