diff --git a/control.go b/control.go
index a024fd6..eb27708 100644
--- a/control.go
+++ b/control.go
@@ -20,6 +20,7 @@ import (
        "os"
 
        v1 "github.com/containerd/cgroups/stats/v1"
+       v2 "github.com/containerd/cgroups/stats/v2"
        specs "github.com/opencontainers/runtime-spec/specs-go"
 )
 
@@ -61,29 +62,42 @@ type Cgroup interface {
        New(string, *specs.LinuxResources) (Cgroup, error)
        // Add adds a process to the cgroup (cgroup.procs)
        Add(Process) error
-       // AddTask adds a process to the cgroup (tasks)
-       AddTask(Process) error
        // Delete removes the cgroup as a whole
        Delete() error
        // MoveTo moves all the processes under the calling cgroup to the provided one
        // subsystems are moved one at a time
        MoveTo(Cgroup) error
-       // Stat returns the stats for all subsystems in the cgroup
-       Stat(...ErrorHandler) (*v1.Metrics, error)
        // Update updates all the subsystems with the provided resource changes
        Update(resources *specs.LinuxResources) error
-       // Processes returns all the processes in a select subsystem for the cgroup
-       Processes(Name, bool) ([]Process, error)
-       // Tasks returns all the tasks in a select subsystem for the cgroup
-       Tasks(Name, bool) ([]Task, error)
        // Freeze freezes or pauses all processes inside the cgroup
        Freeze() error
        // Thaw thaw or resumes all processes inside the cgroup
        Thaw() error
-       // OOMEventFD returns the memory subsystem's event fd for OOM events
-       OOMEventFD() (uintptr, error)
        // State returns the cgroups current state
        State() State
        // Subsystems returns all the subsystems in the cgroup
        Subsystems() []Subsystem
 }
+
+type CgroupV1 interface {
+       Cgroup
+       // AddTask adds a process to the cgroup (tasks)
+       AddTask(Process) error
+       // Stat returns the stats for all subsystems in the cgroup
+       Stat(...ErrorHandler) (*v1.Metrics, error)
+       // Processes returns all the processes in a select subsystem for the cgroup
+       Processes(Name, bool) ([]Process, error)
+       // Tasks returns all the tasks in a select subsystem for the cgroup
+       Tasks(Name, bool) ([]Task, error)
+       // OOMEventFD returns the memory subsystem's event fd for OOM events
+       OOMEventFD() (uintptr, error)
+}
+
+type CgroupV2 interface {
+       Cgroup
+       // Stat returns the stats for all subsystems in the cgroup
+       Stat(...ErrorHandler) (*v2.Metrics, error)
+       // Processes returns all the processes in the cgroup
+       Processes(bool) ([]Process, error)
+       // TODO: support memory.events
+}

diff --git a/hierarchy.go b/hierarchy.go
index 9221bf3..ac088c5 100644
--- a/hierarchy.go
+++ b/hierarchy.go
@@ -17,4 +17,4 @@
 package cgroups
 
 // Hierarchy enableds both unified and split hierarchy for cgroups
-type Hierarchy func() ([]Subsystem, error)
+type Hierarchy func() (subsystems []Subsystem, unifiedMode bool, err error)