diff --git a/cinder/volume/drivers/nimble.py b/cinder/volume/drivers/nimble.py
index 018cce30360..4ce2dd82a2d 100644
--- a/cinder/volume/drivers/nimble.py
+++ b/cinder/volume/drivers/nimble.py
@@ -735,8 +735,7 @@ class NimbleBaseVolumeDriver(san.SanDriver):
                          {'volume': volume.name,
                           'host_name': volume.host.split('@')[0]})
                 return True
-            else:
-                return False
+        return False
 
 
 @interface.volumedriver
@@ -1538,9 +1537,9 @@ class NimbleRestAPIExecutor(object):
                   "initiator_group_id": initiator_group_id}
         api = "access_control_records"
         r = self.get_query(api, filter)
-        LOG.info("ACL record is %result", {'result': r.json()})
+        LOG.info("ACL record is %(result)s", {'result': r.json()})
         if not r.json()['data']:
-            LOG.warning('ACL is not available for this volume %vol_id', {
+            LOG.warning('ACL is not available for this volume %(vol_id)', {
                         'vol_id': volume_id})
             return
         return r.json()['data'][0]
@@ -1579,7 +1578,7 @@ class NimbleRestAPIExecutor(object):
             LOG.debug("ACL Record %(acl)s", {"acl": acl_record})
             if acl_record is not None:
                 acl_id = acl_record['id']
-                api = 'access_control_records/' + six.text_type(acl_id)
+                api = 'access_control_records/%s' % acl_id
                 self.delete(api)
         except NimbleAPIException as ex:
             LOG.debug("remove_acl_exception: %s", ex)
diff --git a/doc/source/configuration/block-storage/drivers/nimble-volume-driver.rst b/doc/source/configuration/block-storage/drivers/nimble-volume-driver.rst
index 4d1e18c908e..956e11eb948 100644
--- a/doc/source/configuration/block-storage/drivers/nimble-volume-driver.rst
+++ b/doc/source/configuration/block-storage/drivers/nimble-volume-driver.rst
@@ -128,6 +128,11 @@ The Nimble volume driver also supports the following extra spec options:
   PERF_POL_NAME is the name of a performance policy which exists on the
   Nimble array and should be enabled for every volume in a volume type.
 
+.. note::
+
+    When upgrading to OpenStack deployment to Victoria or later,
+    do unset ``nimble:multi-initiator`` extra-spec and set ``multiattach='<is> True'``.
+
 nimble:dedupe'='true'
   Used to enable dedupe support for a volume-type.
 
diff --git a/releasenotes/notes/1885946-17bc5c3dc0535044.yaml b/releasenotes/notes/1885946-17bc5c3dc0535044.yaml
index 994988032d5..8f0375c68db 100644
--- a/releasenotes/notes/1885946-17bc5c3dc0535044.yaml
+++ b/releasenotes/notes/1885946-17bc5c3dc0535044.yaml
@@ -1,8 +1,8 @@
 ---
 features:
   - |
-    Add Multi-attach feature in Nimble driver.
+    Added Multi-attach feature in Nimble driver.
 upgrade:
   - |
-    Nimble specific extra-spec nimble:multi-initiator is removed.
+    Nimble specific extra-spec ``nimble:multi-initiator`` is removed.
     Common extra-spec multiattach is added.