Regenerate Library

  - Demote `password` to optional and remove unsupported `username` on
    SIP Credential Update
  - Demote `RoleSid` to optional and add optional `attributes`, `friendlyName`
    parameters on IP Messaging/Chat User creation
  - Add optional `attributes` parameter on IP Messaging/Chat message creation

16 files changed, 348 insertions, 44 deletions

diff --git a/CHANGES.md b/CHANGES.md
index 8bfe8b2..9f7c5cf 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,17 @@
 twilio-php Changelog
 ====================
 
+[2016-08-30] Version 5.3.0
+--------------------------
+**Breaking Changes, refer to [Upgrade Guide][upgrade]**
+
+  - Demote `password` to optional and remove unsupported `username` on
+    SIP Credential Update
+  - Demote `RoleSid` to optional and add optional `attributes`, `friendlyName`
+    parameters on IP Messaging/Chat User creation
+  - Add optional `attributes` parameter on IP Messaging/Chat message creation
+
+
 [2016-08-29] Version 5.2.0
 --------------------------
 **Breaking Changes, refer to [Upgrade Guide][upgrade]**
diff --git a/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialContext.php b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialContext.php
index 7a362b9..6b653ad 100644
--- a/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialContext.php
+++ b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialContext.php
@@ -10,6 +10,7 @@
 namespace Twilio\Rest\Api\V2010\Account\Sip\CredentialList;
 
 use Twilio\InstanceContext;
+use Twilio\Options;
 use Twilio\Values;
 use Twilio\Version;
 
@@ -62,14 +63,14 @@ class CredentialContext extends InstanceContext {
     /**
      * Update the CredentialInstance
      * 
-     * @param string $username The username
-     * @param string $password The password
+     * @param array|Options $options Optional Arguments
      * @return CredentialInstance Updated CredentialInstance
      */
-    public function update($username, $password) {
+    public function update($options = array()) {
+        $options = new Values($options);
+        
         $data = Values::of(array(
-            'Username' => $username,
-            'Password' => $password,
+            'Password' => $options['password'],
         ));
         
         $payload = $this->version->update(
diff --git a/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialInstance.php b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialInstance.php
index 0f54875..cd255b7 100644
--- a/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialInstance.php
+++ b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialInstance.php
@@ -12,6 +12,7 @@ namespace Twilio\Rest\Api\V2010\Account\Sip\CredentialList;
 use Twilio\Deserialize;
 use Twilio\Exceptions\TwilioException;
 use Twilio\InstanceResource;
+use Twilio\Options;
 use Twilio\Version;
 
 /**
@@ -86,14 +87,12 @@ class CredentialInstance extends InstanceResource {
     /**
      * Update the CredentialInstance
      * 
-     * @param string $username The username
-     * @param string $password The password
+     * @param array|Options $options Optional Arguments
      * @return CredentialInstance Updated CredentialInstance
      */
-    public function update($username, $password) {
+    public function update($options = array()) {
         return $this->proxy()->update(
-            $username,
-            $password
+            $options
         );
     }
 
diff --git a/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialOptions.php b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialOptions.php
new file mode 100644
index 0000000..7b3595c
--- /dev/null
+++ b/Twilio/Rest/Api/V2010/Account/Sip/CredentialList/CredentialOptions.php
@@ -0,0 +1,58 @@
+<?php
+
+/**
+ * This code was generated by
+ * \ / _    _  _|   _  _
+ * | (_)\/(_)(_|\/| |(/_  v1.0.0
+ * /       /
+ */
+
+namespace Twilio\Rest\Api\V2010\Account\Sip\CredentialList;
+
+use Twilio\Options;
+use Twilio\Values;
+
+abstract class CredentialOptions {
+    /**
+     * @param string $password The password
+     * @return UpdateCredentialOptions Options builder
+     */
+    public static function update($password = Values::NONE) {
+        return new UpdateCredentialOptions($password);
+    }
+}
+
+class UpdateCredentialOptions extends Options {
+    /**
+     * @param string $password The password
+     */
+    public function __construct($password = Values::NONE) {
+        $this->options['password'] = $password;
+    }
+
+    /**
+     * The password
+     * 
+     * @param string $password The password
+     * @return $this Fluent Builder
+     */
+    public function setPassword($password) {
+        $this->options['password'] = $password;
+        return $this;
+    }
+
+    /**
+     * Provide a friendly representation
+     * 
+     * @return string Machine friendly representation
+     */
+    public function __toString() {
+        $options = array();
+        foreach ($this->options as $key => $value) {
+            if ($value != Values::NONE) {
+                $options[] = "$key=$value";
+            }
+        }
+        return '[Twilio.Api.V2010.UpdateCredentialOptions ' . implode(' ', $options) . ']';
+    }
+}
\ No newline at end of file
diff --git a/Twilio/Rest/Chat/V1/Service/Channel/MessageList.php b/Twilio/Rest/Chat/V1/Service/Channel/MessageList.php
index dda4599..77bbe5b 100644
--- a/Twilio/Rest/Chat/V1/Service/Channel/MessageList.php
+++ b/Twilio/Rest/Chat/V1/Service/Channel/MessageList.php
@@ -48,6 +48,7 @@ class MessageList extends ListResource {
         $data = Values::of(array(
             'Body' => $body,
             'From' => $options['from'],
+            'Attributes' => $options['attributes'],
         ));
         
         $payload = $this->version->create(
diff --git a/Twilio/Rest/Chat/V1/Service/Channel/MessageOptions.php b/Twilio/Rest/Chat/V1/Service/Channel/MessageOptions.php
index 4e56700..c5955ba 100644
--- a/Twilio/Rest/Chat/V1/Service/Channel/MessageOptions.php
+++ b/Twilio/Rest/Chat/V1/Service/Channel/MessageOptions.php
@@ -15,10 +15,11 @@ use Twilio\Values;
 abstract class MessageOptions {
     /**
      * @param string $from The from
+     * @param string $attributes The attributes
      * @return CreateMessageOptions Options builder
      */
-    public static function create($from = Values::NONE) {
-        return new CreateMessageOptions($from);
+    public static function create($from = Values::NONE, $attributes = Values::NONE) {
+        return new CreateMessageOptions($from, $attributes);
     }
 
     /**
@@ -33,9 +34,11 @@ abstract class MessageOptions {
 class CreateMessageOptions extends Options {
     /**
      * @param string $from The from
+     * @param string $attributes The attributes
      */
-    public function __construct($from = Values::NONE) {
+    public function __construct($from = Values::NONE, $attributes = Values::NONE) {
         $this->options['from'] = $from;
+        $this->options['attributes'] = $attributes;
     }
 
     /**
@@ -50,6 +53,17 @@ class CreateMessageOptions extends Options {
     }
 
     /**
+     * The attributes
+     * 
+     * @param string $attributes The attributes
+     * @return $this Fluent Builder
+     */
+    public function setAttributes($attributes) {
+        $this->options['attributes'] = $attributes;
+        return $this;
+    }
+
+    /**
      * Provide a friendly representation
      * 
      * @return string Machine friendly representation
diff --git a/Twilio/Rest/Chat/V1/Service/UserList.php b/Twilio/Rest/Chat/V1/Service/UserList.php
index f046c8e..4e38bb4 100644
--- a/Twilio/Rest/Chat/V1/Service/UserList.php
+++ b/Twilio/Rest/Chat/V1/Service/UserList.php
@@ -10,6 +10,7 @@
 namespace Twilio\Rest\Chat\V1\Service;
 
 use Twilio\ListResource;
+use Twilio\Options;
 use Twilio\Values;
 use Twilio\Version;
 
@@ -36,13 +37,17 @@ class UserList extends ListResource {
      * Create a new UserInstance
      * 
      * @param string $identity The identity
-     * @param string $roleSid The role_sid
+     * @param array|Options $options Optional Arguments
      * @return UserInstance Newly created UserInstance
      */
-    public function create($identity, $roleSid) {
+    public function create($identity, $options = array()) {
+        $options = new Values($options);
+        
         $data = Values::of(array(
             'Identity' => $identity,
-            'RoleSid' => $roleSid,
+            'RoleSid' => $options['roleSid'],
+            'Attributes' => $options['attributes'],
+            'FriendlyName' => $options['friendlyName'],
         ));
         
         $payload = $this->version->create(
diff --git a/Twilio/Rest/Chat/V1/Service/UserOptions.php b/Twilio/Rest/Chat/V1/Service/UserOptions.php
index 357acfb..c34e12e 100644
--- a/Twilio/Rest/Chat/V1/Service/UserOptions.php
+++ b/Twilio/Rest/Chat/V1/Service/UserOptions.php
@@ -17,6 +17,16 @@ abstract class UserOptions {
      * @param string $roleSid The role_sid
      * @param string $attributes The attributes
      * @param string $friendlyName The friendly_name
+     * @return CreateUserOptions Options builder
+     */
+    public static function create($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
+        return new CreateUserOptions($roleSid, $attributes, $friendlyName);
+    }
+
+    /**
+     * @param string $roleSid The role_sid
+     * @param string $attributes The attributes
+     * @param string $friendlyName The friendly_name
      * @return UpdateUserOptions Options builder
      */
     public static function update($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
@@ -24,6 +34,67 @@ abstract class UserOptions {
     }
 }
 
+class CreateUserOptions extends Options {
+    /**
+     * @param string $roleSid The role_sid
+     * @param string $attributes The attributes
+     * @param string $friendlyName The friendly_name
+     */
+    public function __construct($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
+        $this->options['roleSid'] = $roleSid;
+        $this->options['attributes'] = $attributes;
+        $this->options['friendlyName'] = $friendlyName;
+    }
+
+    /**
+     * The role_sid
+     * 
+     * @param string $roleSid The role_sid
+     * @return $this Fluent Builder
+     */
+    public function setRoleSid($roleSid) {
+        $this->options['roleSid'] = $roleSid;
+        return $this;
+    }
+
+    /**
+     * The attributes
+     * 
+     * @param string $attributes The attributes
+     * @return $this Fluent Builder
+     */
+    public function setAttributes($attributes) {
+        $this->options['attributes'] = $attributes;
+        return $this;
+    }
+
+    /**
+     * The friendly_name
+     * 
+     * @param string $friendlyName The friendly_name
+     * @return $this Fluent Builder
+     */
+    public function setFriendlyName($friendlyName) {
+        $this->options['friendlyName'] = $friendlyName;
+        return $this;
+    }
+
+    /**
+     * Provide a friendly representation
+     * 
+     * @return string Machine friendly representation
+     */
+    public function __toString() {
+        $options = array();
+        foreach ($this->options as $key => $value) {
+            if ($value != Values::NONE) {
+                $options[] = "$key=$value";
+            }
+        }
+        return '[Twilio.Chat.V1.CreateUserOptions ' . implode(' ', $options) . ']';
+    }
+}
+
 class UpdateUserOptions extends Options {
     /**
      * @param string $roleSid The role_sid
diff --git a/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageList.php b/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageList.php
index 3f01c6d..6820f2f 100644
--- a/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageList.php
+++ b/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageList.php
@@ -48,6 +48,7 @@ class MessageList extends ListResource {
         $data = Values::of(array(
             'Body' => $body,
             'From' => $options['from'],
+            'Attributes' => $options['attributes'],
         ));
         
         $payload = $this->version->create(
diff --git a/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageOptions.php b/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageOptions.php
index 0c6dabb..66132e3 100644
--- a/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageOptions.php
+++ b/Twilio/Rest/IpMessaging/V1/Service/Channel/MessageOptions.php
@@ -15,10 +15,11 @@ use Twilio\Values;
 abstract class MessageOptions {
     /**
      * @param string $from The from
+     * @param string $attributes The attributes
      * @return CreateMessageOptions Options builder
      */
-    public static function create($from = Values::NONE) {
-        return new CreateMessageOptions($from);
+    public static function create($from = Values::NONE, $attributes = Values::NONE) {
+        return new CreateMessageOptions($from, $attributes);
     }
 
     /**
@@ -33,9 +34,11 @@ abstract class MessageOptions {
 class CreateMessageOptions extends Options {
     /**
      * @param string $from The from
+     * @param string $attributes The attributes
      */
-    public function __construct($from = Values::NONE) {
+    public function __construct($from = Values::NONE, $attributes = Values::NONE) {
         $this->options['from'] = $from;
+        $this->options['attributes'] = $attributes;
     }
 
     /**
@@ -50,6 +53,17 @@ class CreateMessageOptions extends Options {
     }
 
     /**
+     * The attributes
+     * 
+     * @param string $attributes The attributes
+     * @return $this Fluent Builder
+     */
+    public function setAttributes($attributes) {
+        $this->options['attributes'] = $attributes;
+        return $this;
+    }
+
+    /**
      * Provide a friendly representation
      * 
      * @return string Machine friendly representation
diff --git a/Twilio/Rest/IpMessaging/V1/Service/UserList.php b/Twilio/Rest/IpMessaging/V1/Service/UserList.php
index e647fee..effac8a 100644
--- a/Twilio/Rest/IpMessaging/V1/Service/UserList.php
+++ b/Twilio/Rest/IpMessaging/V1/Service/UserList.php
@@ -10,6 +10,7 @@
 namespace Twilio\Rest\IpMessaging\V1\Service;
 
 use Twilio\ListResource;
+use Twilio\Options;
 use Twilio\Values;
 use Twilio\Version;
 
@@ -36,13 +37,17 @@ class UserList extends ListResource {
      * Create a new UserInstance
      * 
      * @param string $identity The identity
-     * @param string $roleSid The role_sid
+     * @param array|Options $options Optional Arguments
      * @return UserInstance Newly created UserInstance
      */
-    public function create($identity, $roleSid) {
+    public function create($identity, $options = array()) {
+        $options = new Values($options);
+        
         $data = Values::of(array(
             'Identity' => $identity,
-            'RoleSid' => $roleSid,
+            'RoleSid' => $options['roleSid'],
+            'Attributes' => $options['attributes'],
+            'FriendlyName' => $options['friendlyName'],
         ));
         
         $payload = $this->version->create(
diff --git a/Twilio/Rest/IpMessaging/V1/Service/UserOptions.php b/Twilio/Rest/IpMessaging/V1/Service/UserOptions.php
index 81b5c5a..54ee235 100644
--- a/Twilio/Rest/IpMessaging/V1/Service/UserOptions.php
+++ b/Twilio/Rest/IpMessaging/V1/Service/UserOptions.php
@@ -17,6 +17,16 @@ abstract class UserOptions {
      * @param string $roleSid The role_sid
      * @param string $attributes The attributes
      * @param string $friendlyName The friendly_name
+     * @return CreateUserOptions Options builder
+     */
+    public static function create($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
+        return new CreateUserOptions($roleSid, $attributes, $friendlyName);
+    }
+
+    /**
+     * @param string $roleSid The role_sid
+     * @param string $attributes The attributes
+     * @param string $friendlyName The friendly_name
      * @return UpdateUserOptions Options builder
      */
     public static function update($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
@@ -24,6 +34,67 @@ abstract class UserOptions {
     }
 }
 
+class CreateUserOptions extends Options {
+    /**
+     * @param string $roleSid The role_sid
+     * @param string $attributes The attributes
+     * @param string $friendlyName The friendly_name
+     */
+    public function __construct($roleSid = Values::NONE, $attributes = Values::NONE, $friendlyName = Values::NONE) {
+        $this->options['roleSid'] = $roleSid;
+        $this->options['attributes'] = $attributes;
+        $this->options['friendlyName'] = $friendlyName;
+    }
+
+    /**
+     * The role_sid
+     * 
+     * @param string $roleSid The role_sid
+     * @return $this Fluent Builder
+     */
+    public function setRoleSid($roleSid) {
+        $this->options['roleSid'] = $roleSid;
+        return $this;
+    }
+
+    /**
+     * The attributes
+     * 
+     * @param string $attributes The attributes
+     * @return $this Fluent Builder
+     */
+    public function setAttributes($attributes) {
+        $this->options['attributes'] = $attributes;
+        return $this;
+    }
+
+    /**
+     * The friendly_name
+     * 
+     * @param string $friendlyName The friendly_name
+     * @return $this Fluent Builder
+     */
+    public function setFriendlyName($friendlyName) {
+        $this->options['friendlyName'] = $friendlyName;
+        return $this;
+    }
+
+    /**
+     * Provide a friendly representation
+     * 
+     * @return string Machine friendly representation
+     */
+    public function __toString() {
+        $options = array();
+        foreach ($this->options as $key => $value) {
+            if ($value != Values::NONE) {
+                $options[] = "$key=$value";
+            }
+        }
+        return '[Twilio.IpMessaging.V1.CreateUserOptions ' . implode(' ', $options) . ']';
+    }
+}
+
 class UpdateUserOptions extends Options {
     /**
      * @param string $roleSid The role_sid
diff --git a/Twilio/Tests/Integration/Api/V2010/Account/Sip/CredentialList/CredentialTest.php b/Twilio/Tests/Integration/Api/V2010/Account/Sip/CredentialList/CredentialTest.php
index d2e6e7d..6348ef5 100644
--- a/Twilio/Tests/Integration/Api/V2010/Account/Sip/CredentialList/CredentialTest.php
+++ b/Twilio/Tests/Integration/Api/V2010/Account/Sip/CredentialList/CredentialTest.php
@@ -197,20 +197,13 @@ class CredentialTest extends HolodeckTestCase {
             $this->twilio->api->v2010->accounts("ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
                                      ->sip
                                      ->credentialLists("CLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                     ->credentials("CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")->update("username", "password");
+                                     ->credentials("CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")->update();
         } catch (DeserializeException $e) {}
           catch (TwilioException $e) {}
         
-        $values = array(
-            'Username' => "username",
-            'Password' => "password",
-        );
-        
         $this->assertRequest(new Request(
             'post',
-            'https://api.twilio.com/2010-04-01/Accounts/ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/SIP/CredentialLists/CLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Credentials/CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.json',
-            null,
-            $values
+            'https://api.twilio.com/2010-04-01/Accounts/ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/SIP/CredentialLists/CLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Credentials/CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.json'
         ));
     }
 
@@ -233,7 +226,7 @@ class CredentialTest extends HolodeckTestCase {
         $actual = $this->twilio->api->v2010->accounts("ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
                                            ->sip
                                            ->credentialLists("CLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                           ->credentials("CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")->update("username", "password");
+                                           ->credentials("CRaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")->update();
         
         $this->assertNotNull($actual);
     }
diff --git a/Twilio/Tests/Integration/Chat/V1/Service/UserTest.php b/Twilio/Tests/Integration/Chat/V1/Service/UserTest.php
index da3c036..eddc766 100644
--- a/Twilio/Tests/Integration/Chat/V1/Service/UserTest.php
+++ b/Twilio/Tests/Integration/Chat/V1/Service/UserTest.php
@@ -88,13 +88,12 @@ class UserTest extends HolodeckTestCase {
         
         try {
             $this->twilio->chat->v1->services("ISaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                   ->users->create("identity", "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
+                                   ->users->create("identity");
         } catch (DeserializeException $e) {}
           catch (TwilioException $e) {}
         
         $values = array(
             'Identity' => "identity",
-            'RoleSid' => "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
         );
         
         $this->assertRequest(new Request(
@@ -125,7 +124,7 @@ class UserTest extends HolodeckTestCase {
         ));
         
         $actual = $this->twilio->chat->v1->services("ISaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                         ->users->create("identity", "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
+                                         ->users->create("identity");
         
         $this->assertNotNull($actual);
     }
diff --git a/Twilio/Tests/Integration/IpMessaging/V1/Service/UserTest.php b/Twilio/Tests/Integration/IpMessaging/V1/Service/UserTest.php
index ada0643..a4cb290 100644
--- a/Twilio/Tests/Integration/IpMessaging/V1/Service/UserTest.php
+++ b/Twilio/Tests/Integration/IpMessaging/V1/Service/UserTest.php
@@ -88,13 +88,12 @@ class UserTest extends HolodeckTestCase {
         
         try {
             $this->twilio->ipMessaging->v1->services("ISaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                          ->users->create("identity", "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
+                                          ->users->create("identity");
         } catch (DeserializeException $e) {}
           catch (TwilioException $e) {}
         
         $values = array(
             'Identity' => "identity",
-            'RoleSid' => "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
         );
         
         $this->assertRequest(new Request(
@@ -125,7 +124,7 @@ class UserTest extends HolodeckTestCase {
         ));
         
         $actual = $this->twilio->ipMessaging->v1->services("ISaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
-                                                ->users->create("identity", "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
+                                                ->users->create("identity");
         
         $this->assertNotNull($actual);
     }
diff --git a/UPGRADE.md b/UPGRADE.md
index 96dfa95..17cdb3b 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -3,6 +3,68 @@
 _After `5.1.1` all `MINOR` and `MAJOR` version bumps will have upgrade notes 
 posted here._
 
+[2015-08-30] 5.2.x to 5.3.x
+---------------------------
+
+### CHANGED - SIP Credential Update
+  - `CredentialInstance::update(string $username, string $password)` to `CredentialInstance::update(array|CredentialOptions $options)`
+  - `CredentialContext::update(string $username, string $password)` to `CredentialContext::update(array|CredentialOptions $options)`
+
+#### 5.2.x
+```php
+<?php
+
+use Twilio\Rest\Client;
+
+$client = new Client();
+$client->sip->credentialLists('CL123')->credentials('CA123')->update('username', 'password');
+```
+
+#### 5.3.x
+```php
+<?php
+
+use Twilio\Rest\Client;
+
+$client = new Client();
+$client->sip->credentialLists('CL123')->credentials('CA123')->update(array(
+    'password' => 'password'
+));
+```
+
+#### Rationale
+Credential Updates only supported Updating the password and it is an optional parameter.
+
+
+### CHANGED - Chat/IP Messaging Role Creation
+
+#### 5.2.x
+```php
+<?php
+
+use Twilio\Rest\Client;
+
+$client = new Client();
+$client->chat->v1->services('IS123')->users->create('identity', 'RL123');
+```
+
+#### 5.3.x
+```php
+<?php
+
+use Twilio\Rest\Client;
+
+$client = new Client();
+$client->chat->v1->services('IS123')->users->create('identity', array(
+    'roleSid' => 'RL123'
+));
+```
+
+#### Rationale
+As the Chat product has evolved, we have added a default Role sid to User creation
+making the parameter optional.
+
+
 [2016-08-29] 5.1.x to 5.2.x
 ---------------------------
 
@@ -34,9 +96,9 @@ $client->conferences('CF123')->participants('CA123')->update(array(
 ```
 #### Rationale
 
-Conference Participants actually support a wider range of mutations than the 
+Conference Participants actually support a wider range of mutations than the
 `5.1.x` library supported.  Mute was incorrectly marked as a `required` property
-when it is actually `optional`.  This change allows the library to provide 
+when it is actually `optional`.  This change allows the library to provide
 support for the full range of mutation options.
 
 |  Option    | Definition                                                                                                                                                                             |
@@ -51,7 +113,7 @@ support for the full range of mutation options.
 ### CHANGED - Taskrouter Workflow Create
 
   - `WorkflowList::create(string $friendlyName, string $configuration, string $assignmentCallbackUrl, array|WorkflowOptions $options)` to `WorkflowList::create(string $friendlyName, string $configuration, array|WorkflowOptions $options)`
-  
+
 #### 5.1.x
 ```php
 <?php
@@ -86,8 +148,8 @@ $client->taskrouter->workspaces('WS123')->workflows->create(
 
 When Taskrouter was first released all workflows had to communicate reservations
 back to a server for handling.  As the product has matured a capable JavaScript
-SDK has been released that can handle reservations.  This change allows one to 
-use Taskrouter without an `assignmentCallbackUrl` instead using the client 
+SDK has been released that can handle reservations.  This change allows one to
+use Taskrouter without an `assignmentCallbackUrl` instead using the client
 events to handle reservations.
 
-[Full documentation](https://www.twilio.com/docs/api/taskrouter/worker-js)
+[Full documentation](https://www.twilio.com/docs/api/taskrouter/worker-js)
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