decades old OS versions just fine there.
* Switch back to the legacy 'cgroup' controller. Note that while it can be a
- valid solution, it's not a permanent one. There's a high likelihood that a
- future {pve} major release, for example 8.0, cannot support the legacy
- controller anymore.
+ valid solution, it's not a permanent one. Starting from {pve} 9.0, the legacy
+ controller will not be supported anymore.
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[[pct_cgroup_change_version]]