diff --git a/tempest/api/volume/admin/test_volume_quotas.py b/tempest/api/volume/admin/test_volume_quotas.py
index e546bff..61a6df4 100644
--- a/tempest/api/volume/admin/test_volume_quotas.py
+++ b/tempest/api/volume/admin/test_volume_quotas.py
@@ -38,8 +38,8 @@
     @classmethod
     def setup_clients(cls):
         super(BaseVolumeQuotasAdminTestJSON, cls).setup_clients()
-        cls.transfer_client = cls.os_primary.volume_transfers_v2_client
-        cls.alt_transfer_client = cls.os_alt.volume_transfers_v2_client
+        cls.transfer_client = cls.os_primary.volume_transfers_client_latest
+        cls.alt_transfer_client = cls.os_alt.volume_transfers_client_latest
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index 81fd6e6..64fe29a 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -74,24 +74,19 @@
         if CONF.service_available.glance:
             cls.images_client = cls.os_primary.image_client_v2
 
-        if cls._api_version == 3:
-            cls.backups_client = cls.os_primary.backups_v3_client
-            cls.volumes_client = cls.os_primary.volumes_v3_client
-            cls.messages_client = cls.os_primary.volume_v3_messages_client
-            cls.versions_client = cls.os_primary.volume_v3_versions_client
-            cls.groups_client = cls.os_primary.groups_v3_client
-            cls.group_snapshots_client = (
-                cls.os_primary.group_snapshots_v3_client)
-        else:
-            cls.backups_client = cls.os_primary.backups_v2_client
-            cls.volumes_client = cls.os_primary.volumes_v2_client
-
-        cls.snapshots_client = cls.os_primary.snapshots_v2_client
+        cls.backups_client = cls.os_primary.backups_client_latest
+        cls.volumes_client = cls.os_primary.volumes_client_latest
+        cls.messages_client = cls.os_primary.volume_messages_client_latest
+        cls.versions_client = cls.os_primary.volume_versions_client_latest
+        cls.groups_client = cls.os_primary.groups_client_latest
+        cls.group_snapshots_client = (
+            cls.os_primary.group_snapshots_client_latest)
+        cls.snapshots_client = cls.os_primary.snapshots_client_latest
         cls.volumes_extension_client =\
-            cls.os_primary.volumes_v2_extension_client
+            cls.os_primary.volumes_extension_client_latest
         cls.availability_zone_client = (
-            cls.os_primary.volume_v2_availability_zone_client)
-        cls.volume_limits_client = cls.os_primary.volume_v2_limits_client
+            cls.os_primary.volume_availability_zone_client_latest)
+        cls.volume_limits_client = cls.os_primary.volume_limits_client_latest
 
     def setUp(self):
         super(BaseVolumeTest, self).setUp()
@@ -247,34 +242,34 @@
     def setup_clients(cls):
         super(BaseVolumeAdminTest, cls).setup_clients()
 
-        cls.admin_volume_qos_client = cls.os_admin.volume_qos_v2_client
+        cls.admin_volume_qos_client = cls.os_admin.volume_qos_client_latest
         cls.admin_volume_services_client = \
-            cls.os_admin.volume_services_v2_client
-        cls.admin_volume_types_client = cls.os_admin.volume_types_v2_client
-        cls.admin_volume_manage_client = cls.os_admin.volume_manage_v2_client
-        cls.admin_volume_client = cls.os_admin.volumes_v2_client
-        if cls._api_version == 3:
-            cls.admin_volume_client = cls.os_admin.volumes_v3_client
-            cls.admin_groups_client = cls.os_admin.groups_v3_client
-            cls.admin_messages_client = cls.os_admin.volume_v3_messages_client
-            cls.admin_group_snapshots_client = \
-                cls.os_admin.group_snapshots_v3_client
-            cls.admin_group_types_client = cls.os_admin.group_types_v3_client
-        cls.admin_hosts_client = cls.os_admin.volume_hosts_v2_client
+            cls.os_admin.volume_services_client_latest
+        cls.admin_volume_types_client = cls.os_admin.volume_types_client_latest
+        cls.admin_volume_manage_client = (
+            cls.os_admin.volume_manage_client_latest)
+        cls.admin_volume_client = cls.os_admin.volumes_client_latest
+        cls.admin_groups_client = cls.os_admin.groups_client_latest
+        cls.admin_messages_client = cls.os_admin.volume_messages_client_latest
+        cls.admin_group_snapshots_client = \
+            cls.os_admin.group_snapshots_client_latest
+        cls.admin_group_types_client = cls.os_admin.group_types_client_latest
+        cls.admin_hosts_client = cls.os_admin.volume_hosts_client_latest
         cls.admin_snapshot_manage_client = \
-            cls.os_admin.snapshot_manage_v2_client
-        cls.admin_snapshots_client = cls.os_admin.snapshots_v2_client
-        cls.admin_backups_client = cls.os_admin.backups_v2_client
+            cls.os_admin.snapshot_manage_client_latest
+        cls.admin_snapshots_client = cls.os_admin.snapshots_client_latest
+        cls.admin_backups_client = cls.os_admin.backups_client_latest
         cls.admin_encryption_types_client = \
-            cls.os_admin.encryption_types_v2_client
+            cls.os_admin.encryption_types_client_latest
         cls.admin_quota_classes_client = \
-            cls.os_admin.volume_quota_classes_v2_client
-        cls.admin_quotas_client = cls.os_admin.volume_quotas_v2_client
-        cls.admin_volume_limits_client = cls.os_admin.volume_v2_limits_client
+            cls.os_admin.volume_quota_classes_client_latest
+        cls.admin_quotas_client = cls.os_admin.volume_quotas_client_latest
+        cls.admin_volume_limits_client = (
+            cls.os_admin.volume_limits_client_latest)
         cls.admin_capabilities_client = \
-            cls.os_admin.volume_capabilities_v2_client
+            cls.os_admin.volume_capabilities_client_latest
         cls.admin_scheduler_stats_client = \
-            cls.os_admin.volume_scheduler_stats_v2_client
+            cls.os_admin.volume_scheduler_stats_client_latest
 
     @classmethod
     def create_test_qos_specs(cls, name=None, consumer=None, **kwargs):
diff --git a/tempest/api/volume/test_volume_transfers.py b/tempest/api/volume/test_volume_transfers.py
index 75e81b7..c85e0bc 100644
--- a/tempest/api/volume/test_volume_transfers.py
+++ b/tempest/api/volume/test_volume_transfers.py
@@ -27,10 +27,10 @@
     def setup_clients(cls):
         super(VolumesTransfersTest, cls).setup_clients()
 
-        cls.client = cls.os_primary.volume_transfers_v2_client
-        cls.alt_client = cls.os_alt.volume_transfers_v2_client
-        cls.alt_volumes_client = cls.os_alt.volumes_v2_client
-        cls.adm_volumes_client = cls.os_admin.volumes_v2_client
+        cls.client = cls.os_primary.volume_transfers_client_latest
+        cls.alt_client = cls.os_alt.volume_transfers_client_latest
+        cls.alt_volumes_client = cls.os_alt.volumes_client_latest
+        cls.adm_volumes_client = cls.os_admin.volumes_client_latest
 
     @decorators.idempotent_id('4d75b645-a478-48b1-97c8-503f64242f1a')
     def test_create_get_list_accept_volume_transfer(self):
diff --git a/tempest/clients.py b/tempest/clients.py
index 2a07be9..4f2846e 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -241,6 +241,47 @@
         # if only api_v3 is enabled, all these clients should be available
         if (CONF.volume_feature_enabled.api_v2 or
             CONF.volume_feature_enabled.api_v3):
+            self.backups_client_latest = self.volume_v3.BackupsClient()
+            self.encryption_types_client_latest = \
+                self.volume_v3.EncryptionTypesClient()
+            self.snapshot_manage_client_latest = \
+                self.volume_v3.SnapshotManageClient()
+            self.snapshots_client_latest = self.volume_v3.SnapshotsClient()
+            self.volume_capabilities_client_latest = \
+                self.volume_v3.CapabilitiesClient()
+            self.volume_manage_client_latest = (
+                self.volume_v3.VolumeManageClient())
+            self.volume_qos_client_latest = self.volume_v3.QosSpecsClient()
+            self.volume_services_client_latest = (
+                self.volume_v3.ServicesClient())
+            self.volume_types_client_latest = self.volume_v3.TypesClient()
+            self.volume_hosts_client_latest = self.volume_v3.HostsClient()
+            self.volume_quotas_client_latest = self.volume_v3.QuotasClient()
+            self.volume_quota_classes_client_latest = \
+                self.volume_v3.QuotaClassesClient()
+            self.volume_scheduler_stats_client_latest = \
+                self.volume_v3.SchedulerStatsClient()
+            self.volume_transfers_client_latest = \
+                self.volume_v3.TransfersClient()
+            self.volume_availability_zone_client_latest = \
+                self.volume_v3.AvailabilityZoneClient()
+            self.volume_limits_client_latest = self.volume_v3.LimitsClient()
+            self.volumes_client_latest = self.volume_v3.VolumesClient()
+            self.volumes_extension_client_latest = \
+                self.volume_v3.ExtensionsClient()
+            self.group_types_client_latest = self.volume_v3.GroupTypesClient()
+            self.groups_client_latest = self.volume_v3.GroupsClient()
+            self.group_snapshots_client_latest = \
+                self.volume_v3.GroupSnapshotsClient()
+            self.volume_messages_client_latest = (
+                self.volume_v3.MessagesClient())
+            self.volume_versions_client_latest = (
+                self.volume_v3.VersionsClient())
+
+            # TODO(gmann): Below alias for service clients have been
+            # deprecated and will be removed in future. Start using the alias
+            # defined above with suffix _latest.
+            # ****************Deprecated alias start from here***************
             self.backups_v2_client = self.volume_v3.BackupsClient()
             self.encryption_types_v2_client = \
                 self.volume_v3.EncryptionTypesClient()
@@ -268,11 +309,6 @@
             self.volumes_v2_extension_client = \
                 self.volume_v3.ExtensionsClient()
 
-            # Set default client for users that don't need explicit version
-            self.volumes_client_latest = self.volumes_v2_client
-            self.snapshots_client_latest = self.snapshots_v2_client
-            self.backups_client_latest = self.backups_v2_client
-
         if CONF.volume_feature_enabled.api_v3:
             self.backups_v3_client = self.volume_v3.BackupsClient()
             self.group_types_v3_client = self.volume_v3.GroupTypesClient()
@@ -283,11 +319,7 @@
             self.volume_v3_messages_client = self.volume_v3.MessagesClient()
             self.volume_v3_versions_client = self.volume_v3.VersionsClient()
             self.volumes_v3_client = self.volume_v3.VolumesClient()
-
-            # Set default client for users that don't need explicit version
-            self.volumes_client_latest = self.volumes_v3_client
-            self.snapshots_client_latest = self.snapshots_v3_client
-            self.backups_client_latest = self.backups_v3_client
+            # ****************Deprecated alias end here***********************
 
     def _set_object_storage_clients(self):
         self.account_client = self.object_storage.AccountClient()
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index 27e1bc1..83cf42c 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -315,7 +315,7 @@
 class VolumeQuotaService(BaseService):
     def __init__(self, manager, **kwargs):
         super(VolumeQuotaService, self).__init__(kwargs)
-        self.client = manager.volume_quotas_v2_client
+        self.client = manager.volume_quotas_client_latest
 
     def delete(self):
         client = self.client
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 68c4a10..f2730b3 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -165,7 +165,7 @@
 
     if volume_backed:
         volume_name = data_utils.rand_name(__name__ + '-volume')
-        volumes_client = clients.volumes_v2_client
+        volumes_client = clients.volumes_client_latest
         params = {'name': volume_name,
                   'imageRef': image_id,
                   'size': CONF.volume.volume_size}
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index be52eef..cdc30b9 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -301,7 +301,7 @@
 
     def create_volume_type(self, client=None, name=None, backend_name=None):
         if not client:
-            client = self.os_admin.volume_types_v2_client
+            client = self.os_admin.volume_types_client_latest
         randomized_name = name or data_utils.rand_name(
             'volume-type-' + self.__class__.__name__)
 
@@ -1208,9 +1208,9 @@
     @classmethod
     def setup_clients(cls):
         super(EncryptionScenarioTest, cls).setup_clients()
-        cls.admin_volume_types_client = cls.os_admin.volume_types_v2_client
+        cls.admin_volume_types_client = cls.os_admin.volume_types_client_latest
         cls.admin_encryption_types_client =\
-            cls.os_admin.encryption_types_v2_client
+            cls.os_admin.encryption_types_client_latest
 
     def create_encryption_type(self, client=None, type_id=None, provider=None,
                                key_size=None, cipher=None,
diff --git a/tempest/scenario/test_volume_migrate_attached.py b/tempest/scenario/test_volume_migrate_attached.py
index 4624249..c54bb38 100644
--- a/tempest/scenario/test_volume_migrate_attached.py
+++ b/tempest/scenario/test_volume_migrate_attached.py
@@ -40,7 +40,7 @@
     @classmethod
     def setup_clients(cls):
         super(TestVolumeMigrateRetypeAttached, cls).setup_clients()
-        cls.admin_volumes_client = cls.os_admin.volumes_v2_client
+        cls.admin_volumes_client = cls.os_admin.volumes_client_latest
 
     @classmethod
     def skip_checks(cls):