diff --git a/Packages/Tracking/Core/Runtime/Scripts/Utils/XRSupportUtil.cs b/Packages/Tracking/Core/Runtime/Scripts/Utils/XRSupportUtil.cs
index 64bfaa9b7a..657517ca98 100644
--- a/Packages/Tracking/Core/Runtime/Scripts/Utils/XRSupportUtil.cs
+++ b/Packages/Tracking/Core/Runtime/Scripts/Utils/XRSupportUtil.cs
@@ -186,9 +186,27 @@ public static void Recenter()
 
         public static float GetGPUTime()
         {
+#if UNITY_6000_3_OR_NEWER
+            var displaySubsystems = new List<XRDisplaySubsystem>();
+            SubsystemManager.GetSubsystems(displaySubsystems);
+
+            foreach (XRDisplaySubsystem displaySubsystem in displaySubsystems)
+            {
+                if (displaySubsystem != null &&
+                    displaySubsystem.running &&
+                    displaySubsystem.TryGetAppGPUTimeLastFrame(
+                        out float gpuTime))
+                {
+                    return gpuTime;
+                }
+            }
+
+            return 0f;
+#else
             float gpuTime = 0f;
             XRStats.TryGetGPUTimeLastFrame(out gpuTime);
             return gpuTime;
+#endif
         }
 
         public static string GetLoadedDeviceName()
diff --git a/Packages/Tracking/Physical Hands/Runtime/Scripts/Misc/GrabBall.cs b/Packages/Tracking/Physical Hands/Runtime/Scripts/Misc/GrabBall.cs
index c4f6e0643c..58f01dabe5 100644
--- a/Packages/Tracking/Physical Hands/Runtime/Scripts/Misc/GrabBall.cs	
+++ b/Packages/Tracking/Physical Hands/Runtime/Scripts/Misc/GrabBall.cs	
@@ -84,6 +84,9 @@ public float ClosestHandDistance
 
         private void Start()
         {
+#if !UNITY_6000_3_OR_NEWER
+            // This was deprecated in Unity 6, but only warns on our usage of it
+            // in version 6.3+.
             if (Physics.autoSyncTransforms)
             {
                 Debug.LogWarning(
@@ -92,6 +95,7 @@ private void Start()
                 + "move a parent transform. You can modify this setting in "
                 + "Edit->Project Settings->Physics.");
             }
+#endif
 
             _head = Camera.main.transform;