diff --git a/types/setting.go b/types/setting.go
index 358eaa75b1..3a46102869 100644
--- a/types/setting.go
+++ b/types/setting.go
@@ -1242,6 +1242,8 @@ func ValidateSetting(name, value string) (err error) {
 	case SettingNameAllowEmptyDiskSelectorVolume:
 		fallthrough
 	case SettingNameAllowCollectingLonghornUsage:
+		fallthrough
+	case SettingNameReplicaDiskSoftAntiAffinity:
 		if value != "true" && value != "false" {
 			return fmt.Errorf("value %v of setting %v should be true or false", value, sName)
 		}
diff --git a/upgrade/upgrade.go b/upgrade/upgrade.go
index b2713ab753..8aef5f25ea 100644
--- a/upgrade/upgrade.go
+++ b/upgrade/upgrade.go
@@ -233,7 +233,7 @@ func doResourceUpgrade(namespace string, lhClient *lhclientset.Clientset, kubeCl
 
 	// When lhVersionBeforeUpgrade < v1.6.0, it is v1.5.x. The `CheckUpgradePathSupported` method would have failed us out earlier if it was not v1.5.x.
 	resourceMaps = map[string]interface{}{}
-	if semver.Compare(lhVersionBeforeUpgrade, "v1.5.0") < 0 {
+	if semver.Compare(lhVersionBeforeUpgrade, "v1.6.0") < 0 {
 		logrus.Info("Walking through the resource status upgrade path v1.5.x to v1.6.0")
 		if err := v15xto160.UpgradeResourcesStatus(namespace, lhClient, kubeClient, resourceMaps); err != nil {
 			return err
diff --git a/upgrade/v15xto160/upgrade.go b/upgrade/v15xto160/upgrade.go
index 647e1e3bf4..dbf20a5467 100644
--- a/upgrade/v15xto160/upgrade.go
+++ b/upgrade/v15xto160/upgrade.go
@@ -1,17 +1,13 @@
 package v15xto160
 
 import (
-	"context"
-
 	"github.com/pkg/errors"
 
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	clientset "k8s.io/client-go/kubernetes"
 
 	longhorn "github.com/longhorn/longhorn-manager/k8s/pkg/apis/longhorn/v1beta2"
 	lhclientset "github.com/longhorn/longhorn-manager/k8s/pkg/client/clientset/versioned"
-	"github.com/longhorn/longhorn-manager/types"
 	upgradeutil "github.com/longhorn/longhorn-manager/upgrade/util"
 )
 
@@ -20,47 +16,9 @@ const (
 )
 
 func UpgradeResources(namespace string, lhClient *lhclientset.Clientset, kubeClient *clientset.Clientset, resourceMaps map[string]interface{}) error {
-	if err := upgradeCSIPlugin(namespace, kubeClient); err != nil {
-		return err
-	}
-
-	if err := upgradeVolumes(namespace, lhClient, resourceMaps); err != nil {
-		return err
-	}
-
-	if err := upgradeNodes(namespace, lhClient, resourceMaps); err != nil {
-		return err
-	}
-
-	if err := upgradeEngines(namespace, lhClient, resourceMaps); err != nil {
-		return err
-	}
-
-	if err := upgradeReplicas(namespace, lhClient, resourceMaps); err != nil {
-		return err
-	}
-
-	return upgradeOrphans(namespace, lhClient, resourceMaps)
-}
-
-func upgradeNodes(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
-	defer func() {
-		err = errors.Wrapf(err, upgradeLogPrefix+"upgrade node failed")
-	}()
-
-	nodeMap, err := upgradeutil.ListAndUpdateNodesInProvidedCache(namespace, lhClient, resourceMaps)
-	if err != nil {
-		if apierrors.IsNotFound(err) {
-			return nil
-		}
-		return errors.Wrapf(err, "failed to list all existing Longhorn nodes during the node upgrade")
-	}
-
-	for _, n := range nodeMap {
-		_ = n // Nothing to do.
-	}
-
-	return nil
+	// We will probably need to upgrade other resources as well. See upgradeVolumes or previous Longhorn versions for
+	// examples.
+	return upgradeVolumes(namespace, lhClient, resourceMaps)
 }
 
 func upgradeVolumes(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
@@ -85,98 +43,8 @@ func upgradeVolumes(namespace string, lhClient *lhclientset.Clientset, resourceM
 	return nil
 }
 
-func upgradeReplicas(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
-	defer func() {
-		err = errors.Wrapf(err, upgradeLogPrefix+"upgrade replica failed")
-	}()
-
-	replicaMap, err := upgradeutil.ListAndUpdateReplicasInProvidedCache(namespace, lhClient, resourceMaps)
-	if err != nil {
-		if apierrors.IsNotFound(err) {
-			return nil
-		}
-		return errors.Wrapf(err, "failed to list all existing Longhorn replicas during the replica upgrade")
-	}
-
-	for _, r := range replicaMap {
-		_ = r // Nothing to do.
-	}
-
-	return nil
-}
-
-func upgradeEngines(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
-	defer func() {
-		err = errors.Wrapf(err, upgradeLogPrefix+"upgrade engine failed")
-	}()
-
-	engineMap, err := upgradeutil.ListAndUpdateEnginesInProvidedCache(namespace, lhClient, resourceMaps)
-	if err != nil {
-		if apierrors.IsNotFound(err) {
-			return nil
-		}
-		return errors.Wrapf(err, "failed to list all existing Longhorn engines during the engine upgrade")
-	}
-
-	for _, e := range engineMap {
-		_ = e // Nothing to do.
-	}
-
-	return nil
-}
-
-func upgradeOrphans(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
-	defer func() {
-		err = errors.Wrapf(err, upgradeLogPrefix+"upgrade orphan failed")
-	}()
-
-	orphanMap, err := upgradeutil.ListAndUpdateOrphansInProvidedCache(namespace, lhClient, resourceMaps)
-	if err != nil {
-		if apierrors.IsNotFound(err) {
-			return nil
-		}
-		return errors.Wrapf(err, "failed to list all existing Longhorn orphans during the orphan upgrade")
-	}
-
-	for _, o := range orphanMap {
-		if o.Spec.Parameters == nil {
-			continue
-		}
-
-		_ = o // Nothing to do.
-	}
-
-	return nil
-}
-
 func UpgradeResourcesStatus(namespace string, lhClient *lhclientset.Clientset, kubeClient *clientset.Clientset, resourceMaps map[string]interface{}) error {
-	return upgradeNodeStatus(namespace, lhClient, resourceMaps)
-}
-
-func upgradeNodeStatus(namespace string, lhClient *lhclientset.Clientset, resourceMaps map[string]interface{}) (err error) {
-	defer func() {
-		err = errors.Wrapf(err, upgradeLogPrefix+"upgrade node failed")
-	}()
-
-	nodeMap, err := upgradeutil.ListAndUpdateNodesInProvidedCache(namespace, lhClient, resourceMaps)
-	if err != nil {
-		if apierrors.IsNotFound(err) {
-			return nil
-		}
-		return errors.Wrapf(err, "failed to list all existing Longhorn nodes during the node upgrade")
-	}
-
-	for _, n := range nodeMap {
-		_ = n // Nothing to do.
-	}
-
-	return nil
-}
-
-func upgradeCSIPlugin(namespace string, kubeClient *clientset.Clientset) error {
-	err := kubeClient.AppsV1().DaemonSets(namespace).Delete(context.TODO(), types.CSIPluginName, metav1.DeleteOptions{})
-	if err != nil && !apierrors.IsNotFound(err) {
-		return errors.Wrapf(err, upgradeLogPrefix+"failed to delete the %v daemonset during the upgrade", types.CSIPluginName)
-	}
+	// Currently there are no statuses to upgrade. See UpgradeResources -> upgradeVolumes or previous Longhorn versions
+	// for examples.
 	return nil
 }