diff --git a/cinder/tests/unit/test_pure.py b/cinder/tests/unit/test_pure.py
index 207600cfe9b..038c8538f0b 100644
--- a/cinder/tests/unit/test_pure.py
+++ b/cinder/tests/unit/test_pure.py
@@ -382,6 +382,16 @@ class PureDriverTestCase(test.TestCase):
                               func, *args, **kwargs)
             mock_func.side_effect = original_side_effect
 
+    @mock.patch('platform.platform')
+    def test_for_user_agent(self, mock_platform):
+        mock_platform.return_value = 'MyFavoritePlatform'
+        driver = pure.PureBaseVolumeDriver(configuration=self.mock_config)
+        expected_agent = "OpenStack Cinder %s/%s (MyFavoritePlatform)" % (
+            driver.__class__.__name__,
+            driver.VERSION
+        )
+        self.assertEqual(expected_agent, driver._user_agent)
+
 
 class PureBaseSharedDriverTestCase(PureDriverTestCase):
     def setUp(self):
@@ -1888,14 +1898,7 @@ class PureBaseVolumeDriverTestCase(PureBaseSharedDriverTestCase):
             remvollist=[VOLUME_PURITY_NAME]
         )
 
-    @ddt.data(
-        dict(version='1.5.0'),
-        dict(version='2.0.0'),
-        dict(version='1.4.1'),
-    )
-    @ddt.unpack
-    def test_get_flasharray_verify_https(self, version):
-        self.purestorage_module.VERSION = version
+    def test_get_flasharray_verify_https(self):
         san_ip = '1.2.3.4'
         api_token = 'abcdef'
         cert_path = '/my/ssl/certs'
@@ -1910,38 +1913,8 @@ class PureBaseVolumeDriverTestCase(PureBaseSharedDriverTestCase):
             api_token=api_token,
             rest_version=None,
             verify_https=True,
-            ssl_cert=cert_path
-        )
-
-    def test_get_flasharray_dont_verify_https_version_too_old(self):
-        self.purestorage_module.VERSION = '1.4.0'
-        san_ip = '1.2.3.4'
-        api_token = 'abcdef'
-        self.purestorage_module.FlashArray.return_value = mock.MagicMock()
-
-        self.driver._get_flasharray(san_ip,
-                                    api_token,
-                                    verify_https=False,
-                                    ssl_cert_path=None)
-        self.purestorage_module.FlashArray.assert_called_with(
-            san_ip,
-            api_token=api_token,
-            rest_version=None
-        )
-
-    def test_get_flasharray_verify_https_version_too_old(self):
-        self.purestorage_module.VERSION = '1.4.0'
-        san_ip = '1.2.3.4'
-        api_token = 'abcdef'
-        self.purestorage_module.FlashArray.return_value = mock.MagicMock()
-
-        self.assertRaises(
-            exception.PureDriverException,
-            self.driver._get_flasharray,
-            san_ip,
-            api_token,
-            verify_https=True,
-            ssl_cert_path='/my/ssl/certs'
+            ssl_cert=cert_path,
+            user_agent=self.driver._user_agent,
         )
 
 
diff --git a/cinder/volume/drivers/pure.py b/cinder/volume/drivers/pure.py
index d6bbed99f2d..4125b7822d1 100644
--- a/cinder/volume/drivers/pure.py
+++ b/cinder/volume/drivers/pure.py
@@ -19,6 +19,7 @@ This driver requires Purity version 4.0.0 or later.
 """
 
 import math
+import platform
 import re
 import uuid
 
@@ -102,7 +103,6 @@ EXTRA_SPECS_REPL_ENABLED = "replication_enabled"
 
 CONNECT_LOCK_NAME = 'PureVolumeDriver_connect'
 
-
 UNMANAGED_SUFFIX = '-unmanaged'
 MANAGE_SNAP_REQUIRED_API_VERSIONS = ['1.4', '1.5']
 REPLICATION_REQUIRED_API_VERSIONS = ['1.3', '1.4', '1.5']
@@ -110,6 +110,8 @@ REPLICATION_REQUIRED_API_VERSIONS = ['1.3', '1.4', '1.5']
 REPL_SETTINGS_PROPAGATE_RETRY_INTERVAL = 5  # 5 seconds
 REPL_SETTINGS_PROPAGATE_MAX_RETRIES = 36  # 36 * 5 = 180 seconds
 
+USER_AGENT_BASE = 'OpenStack Cinder'
+
 
 def pure_driver_debug_trace(f):
     """Log the method entrance and exit including active backend name.
@@ -156,6 +158,12 @@ class PureBaseVolumeDriver(san.SanDriver):
         self._is_replication_enabled = False
         self._active_backend_id = kwargs.get('active_backend_id', None)
         self._failed_over_primary_array = None
+        self._user_agent = '%(base)s %(class)s/%(version)s (%(platform)s)' % {
+            'base': USER_AGENT_BASE,
+            'class': self.__class__.__name__,
+            'version': self.VERSION,
+            'platform': platform.platform()
+        }
 
     def parse_replication_configs(self):
         self._replication_interval = (
@@ -959,26 +967,13 @@ class PureBaseVolumeDriver(san.SanDriver):
 
     def _get_flasharray(self, san_ip, api_token, rest_version=None,
                         verify_https=None, ssl_cert_path=None):
-        # Older versions of the module (1.4.0) do not support setting ssl certs
-        # TODO(patrickeast): In future releases drop support for 1.4.0
-        if self._client_version_greater_than([1, 4, 0]):
-            array = purestorage.FlashArray(san_ip,
-                                           api_token=api_token,
-                                           rest_version=rest_version,
-                                           verify_https=verify_https,
-                                           ssl_cert=ssl_cert_path)
-        else:
-            if verify_https or ssl_cert_path is not None:
-                msg = _('HTTPS certificate verification was requested '
-                        'but cannot be enabled with purestorage '
-                        'module version %(version)s. Upgrade to a '
-                        'newer version to enable this feature.') % {
-                    'version': purestorage.VERSION
-                }
-                raise exception.PureDriverException(reason=msg)
-            array = purestorage.FlashArray(san_ip,
-                                           api_token=api_token,
-                                           rest_version=rest_version)
+
+        array = purestorage.FlashArray(san_ip,
+                                       api_token=api_token,
+                                       rest_version=rest_version,
+                                       verify_https=verify_https,
+                                       ssl_cert=ssl_cert_path,
+                                       user_agent=self._user_agent)
         array_info = array.get()
         array.array_name = array_info["array_name"]
         array.array_id = array_info["id"]
diff --git a/releasenotes/notes/pure-custom-user-agent-dcca4cb44b69e763.yaml b/releasenotes/notes/pure-custom-user-agent-dcca4cb44b69e763.yaml
new file mode 100644
index 00000000000..6deea69c1f2
--- /dev/null
+++ b/releasenotes/notes/pure-custom-user-agent-dcca4cb44b69e763.yaml
@@ -0,0 +1,4 @@
+---
+upgrade:
+  - Pure volume drivers will need 'purestorage' python module v1.6.0 or newer.
+    Support for 1.4.x has been removed.