diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ec8b97150..9c5947ca59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@
 ## Next Release
 
 * `Aws\Ec2` - Added support for new VM Import APIs, `including ImportImage`.
+* `Aws\Iam` - Added support for the `GetAccessKeyLastUsed` operation.
+* `Aws\CloudSearchDomain` - Search responses now include the expressions requested.
 
 ## 2.8.1 - 2015-04-16
 
diff --git a/src/Aws/CloudSearchDomain/Resources/cloudsearchdomain-2013-01-01.php b/src/Aws/CloudSearchDomain/Resources/cloudsearchdomain-2013-01-01.php
index 30dda5c6ea..846ddcbf51 100644
--- a/src/Aws/CloudSearchDomain/Resources/cloudsearchdomain-2013-01-01.php
+++ b/src/Aws/CloudSearchDomain/Resources/cloudsearchdomain-2013-01-01.php
@@ -191,6 +191,12 @@
                                             ),
                                         ),
                                     ),
+                                    'exprs' => array(
+                                        'type' => 'object',
+                                        'additionalProperties' => array(
+                                            'type' => 'string',
+                                        ),
+                                    ),
                                     'highlights' => array(
                                         'type' => 'object',
                                         'additionalProperties' => array(
diff --git a/src/Aws/Iam/IamClient.php b/src/Aws/Iam/IamClient.php
index 009d0711b1..af3ab648d6 100644
--- a/src/Aws/Iam/IamClient.php
+++ b/src/Aws/Iam/IamClient.php
@@ -69,6 +69,7 @@
  * @method Model detachUserPolicy(array $args = array()) {@command Iam DetachUserPolicy}
  * @method Model enableMFADevice(array $args = array()) {@command Iam EnableMFADevice}
  * @method Model generateCredentialReport(array $args = array()) {@command Iam GenerateCredentialReport}
+ * @method Model getAccessKeyLastUsed(array $args = array()) {@command Iam GetAccessKeyLastUsed}
  * @method Model getAccountAuthorizationDetails(array $args = array()) {@command Iam GetAccountAuthorizationDetails}
  * @method Model getAccountPasswordPolicy(array $args = array()) {@command Iam GetAccountPasswordPolicy}
  * @method Model getAccountSummary(array $args = array()) {@command Iam GetAccountSummary}
diff --git a/src/Aws/Iam/Resources/iam-2010-05-08.php b/src/Aws/Iam/Resources/iam-2010-05-08.php
index 72309c4a54..b7ce5bbe1c 100644
--- a/src/Aws/Iam/Resources/iam-2010-05-08.php
+++ b/src/Aws/Iam/Resources/iam-2010-05-08.php
@@ -2172,6 +2172,38 @@
                 ),
             ),
         ),
+        'GetAccessKeyLastUsed' => array(
+            'httpMethod' => 'POST',
+            'uri' => '/',
+            'class' => 'Aws\\Common\\Command\\QueryCommand',
+            'responseClass' => 'GetAccessKeyLastUsedResponse',
+            'responseType' => 'model',
+            'parameters' => array(
+                'Action' => array(
+                    'static' => true,
+                    'location' => 'aws.query',
+                    'default' => 'GetAccessKeyLastUsed',
+                ),
+                'Version' => array(
+                    'static' => true,
+                    'location' => 'aws.query',
+                    'default' => '2010-05-08',
+                ),
+                'AccessKeyId' => array(
+                    'required' => true,
+                    'type' => 'string',
+                    'location' => 'aws.query',
+                    'minLength' => 16,
+                    'maxLength' => 32,
+                ),
+            ),
+            'errorResponses' => array(
+                array(
+                    'reason' => 'The request was rejected because it referenced an entity that does not exist. The error message describes the entity.',
+                    'class' => 'NoSuchEntityException',
+                ),
+            ),
+        ),
         'GetAccountAuthorizationDetails' => array(
             'httpMethod' => 'POST',
             'uri' => '/',
@@ -5360,6 +5392,31 @@
                 ),
             ),
         ),
+        'GetAccessKeyLastUsedResponse' => array(
+            'type' => 'object',
+            'additionalProperties' => true,
+            'properties' => array(
+                'UserName' => array(
+                    'type' => 'string',
+                    'location' => 'xml',
+                ),
+                'AccessKeyLastUsed' => array(
+                    'type' => 'object',
+                    'location' => 'xml',
+                    'properties' => array(
+                        'LastUsedDate' => array(
+                            'type' => 'string',
+                        ),
+                        'ServiceName' => array(
+                            'type' => 'string',
+                        ),
+                        'Region' => array(
+                            'type' => 'string',
+                        ),
+                    ),
+                ),
+            ),
+        ),
         'GetAccountAuthorizationDetailsResponse' => array(
             'type' => 'object',
             'additionalProperties' => true,
@@ -7175,13 +7232,6 @@
         ),
     ),
     'iterators' => array(
-        'GetAccountAuthorizationDetails' => array(
-            'input_token' => 'Marker',
-            'output_token' => 'Marker',
-            'more_results' => 'IsTruncated',
-            'limit_key' => 'MaxItems',
-            'result_key' => 'UserDetailList || GroupDetailList || RoleDetailList',
-        ),
         'GetGroup' => array(
             'input_token' => 'Marker',
             'output_token' => 'Marker',
@@ -7297,5 +7347,11 @@
             'limit_key' => 'MaxItems',
             'result_key' => 'VirtualMFADevices',
         ),
+        'GetAccountAuthorizationDetails' => array(
+            'input_token' => 'Marker',
+            'output_token' => 'Marker',
+            'more_results' => 'IsTruncated',
+            'limit_key' => 'MaxItems',
+        ),
     ),
 );