diff --git a/changelog/unreleased/add-backchannel-event.md b/changelog/unreleased/add-backchannel-event.md
new file mode 100644
index 00000000000..74aed17b4c9
--- /dev/null
+++ b/changelog/unreleased/add-backchannel-event.md
@@ -0,0 +1,6 @@
+Enhancement: Add the backchannel logout event
+
+We've added the backchannel logout event
+
+https://github.com/cs3org/reva/pull/4737
+https://github.com/owncloud/ocis/issues/9355
diff --git a/changelog/unreleased/expose-disable-versioning.md b/changelog/unreleased/expose-disable-versioning.md
new file mode 100644
index 00000000000..ab4bfe8ce8f
--- /dev/null
+++ b/changelog/unreleased/expose-disable-versioning.md
@@ -0,0 +1,5 @@
+Enhancement: Expose disable-versioning configuration option
+
+This PR exposes the disable-versioning configuration option to the user. This option allows the user to disable versioning for the storage-providers.
+
+https://github.com/cs3org/reva/pull/4742
diff --git a/changelog/unreleased/serviceuser-token-utils.md b/changelog/unreleased/serviceuser-token-utils.md
new file mode 100644
index 00000000000..ae6dab22a1d
--- /dev/null
+++ b/changelog/unreleased/serviceuser-token-utils.md
@@ -0,0 +1,6 @@
+Enhancement: Add GetServiceUserToken() method to utils pkg
+
+Added GetServiceUserToken() function to the utils pkg to easily get a reva
+token for a service account.
+
+https://github.com/cs3org/reva/pull/4738
diff --git a/pkg/events/users.go b/pkg/events/users.go
index 1a118b71993..79ea2add7ec 100644
--- a/pkg/events/users.go
+++ b/pkg/events/users.go
@@ -88,3 +88,17 @@ func (PersonalDataExtracted) Unmarshal(v []byte) (interface{}, error) {
 	err := json.Unmarshal(v, &e)
 	return e, err
 }
+
+// BackchannelLogout is emitted when the callback from the identity provider is received
+type BackchannelLogout struct {
+	Executant *user.UserId
+	SessionId string
+	Timestamp *types.Timestamp
+}
+
+// Unmarshal to fulfill umarshaller interface
+func (BackchannelLogout) Unmarshal(v []byte) (interface{}, error) {
+	e := BackchannelLogout{}
+	err := json.Unmarshal(v, &e)
+	return e, err
+}
diff --git a/pkg/storage/utils/decomposedfs/decomposedfs.go b/pkg/storage/utils/decomposedfs/decomposedfs.go
index fd8e9696d18..8b53a82d3b5 100644
--- a/pkg/storage/utils/decomposedfs/decomposedfs.go
+++ b/pkg/storage/utils/decomposedfs/decomposedfs.go
@@ -157,10 +157,11 @@ func NewDefault(m map[string]interface{}, bs tree.Blobstore, es events.Stream) (
 	}
 
 	aspects := aspects.Aspects{
-		Lookup:      lu,
-		Tree:        tp,
-		Permissions: permissions.NewPermissions(node.NewPermissions(lu), permissionsSelector),
-		EventStream: es,
+		Lookup:            lu,
+		Tree:              tp,
+		Permissions:       permissions.NewPermissions(node.NewPermissions(lu), permissionsSelector),
+		EventStream:       es,
+		DisableVersioning: o.DisableVersioning,
 	}
 
 	return New(o, aspects)
diff --git a/pkg/storage/utils/decomposedfs/options/options.go b/pkg/storage/utils/decomposedfs/options/options.go
index 9e2b4036686..b8b3809f4ec 100644
--- a/pkg/storage/utils/decomposedfs/options/options.go
+++ b/pkg/storage/utils/decomposedfs/options/options.go
@@ -92,6 +92,8 @@ type Options struct {
 	MaxQuota uint64 `mapstructure:"max_quota"`
 
 	MountID string `mapstructure:"mount_id"`
+  
+	DisableVersioning bool `mapstructure:"disable_versioning"`
 }
 
 // AsyncPropagatorOptions holds the configuration for the async propagator
diff --git a/pkg/utils/grpc.go b/pkg/utils/grpc.go
index e82e9895366..ffeb38d81e9 100644
--- a/pkg/utils/grpc.go
+++ b/pkg/utils/grpc.go
@@ -44,20 +44,30 @@ func GetServiceUserContext(serviceUserID string, gwc gateway.GatewayAPIClient, s
 
 // GetServiceUserContextWithContext returns an authenticated context of the given service user
 func GetServiceUserContextWithContext(ctx context.Context, gwc gateway.GatewayAPIClient, serviceUserID string, serviceUserSecret string) (context.Context, error) {
+	token, err := GetServiceUserToken(ctx, gwc, serviceUserID, serviceUserSecret)
+	if err != nil {
+		return nil, err
+	}
+
+	return metadata.AppendToOutgoingContext(ctx, ctxpkg.TokenHeader, token), nil
+}
+
+// GetServiceUserToken returns a reva authentication token for the given service user
+func GetServiceUserToken(ctx context.Context, gwc gateway.GatewayAPIClient, serviceUserID string, serviceUserSecret string) (string, error) {
 	authRes, err := gwc.Authenticate(ctx, &gateway.AuthenticateRequest{
 		Type:         "serviceaccounts",
 		ClientId:     serviceUserID,
 		ClientSecret: serviceUserSecret,
 	})
 	if err != nil {
-		return nil, err
+		return "", err
 	}
 
 	if err := checkStatusCode("authenticating service user", authRes.GetStatus().GetMessage(), authRes.GetStatus().GetCode()); err != nil {
-		return nil, err
+		return "", err
 	}
 
-	return metadata.AppendToOutgoingContext(ctx, ctxpkg.TokenHeader, authRes.Token), nil
+	return authRes.Token, nil
 }
 
 // GetUser gets the specified user