diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc8511ef..238a953d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,10 @@
 # Changelog
 
-## 0.7.5 - TBD
+## 0.7.5 - 2016-04-18
  * Removed `NTLMSoapClient\Exchange`. Folded the few lines of functionality in to `NTLMSoapClient`
  * Added `API::getServerTimezones($timezoneIDs = array(), $fullTimezoneData = false)`
  * Added `CalendarAPI::acceptMeeting($itemId, $message, $sensitivity = 'Private', $options = array()`
+ * Added `CalendarAPI::declineMeeting($itemId, $message, $sensitivity = 'Private', $options = array()`
  * Added `ContactsAPI::createContacts($contact, $options=array())`
  * Added `ContactsAPI::updateContactItem($itemId, $changes)`
  * Added some contact examples
diff --git a/TODO.md b/TODO.md
index d523a265..2c2ae4a1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -12,10 +12,7 @@
 
 ### Test Coverage
  * Increase to at least 90%
-
-### Compatibility
- * Think about swapping out Guzzle to reduce PHP version requirement to 5.4
-
+ 
 ### Code Generation
  * Modify generator to include the SOAP functions as Doc Blocks on ExchangeWebServices class
 
diff --git a/src/Calendar/CalendarAPI.php b/src/Calendar/CalendarAPI.php
index 824c12a5..abd4e6ae 100644
--- a/src/Calendar/CalendarAPI.php
+++ b/src/Calendar/CalendarAPI.php
@@ -227,13 +227,50 @@ public function listChanges($syncState = null, $options = array())
      */
     public function acceptMeeting($itemId, $message, $sensitivity = 'Private', $options = array())
     {
-        $acceptItem = array(
-            'Sensitivity' => $sensitivity,
-            'Body' => $message,
-            'ReferenceItemId' => $itemId->toArray()
+        $request = array(
+            'AcceptItem' => array(
+                'Sensitivity' => $sensitivity,
+                'Body' => array('BodyType' => 'HTML', '_value' => $message),
+                'ReferenceItemId' => $itemId->toArray()
+            )
+        );
+
+        $defaultOptions = array('MessageDisposition' => 'SendOnly');
+        $options = array_replace_recursive($defaultOptions, $options);
+
+        $return = $this->createItems($request, $options)->getCalendarItem();
+        if (!is_array($request)) {
+            $return = array($return);
+        }
+
+        return $return;
+    }
+
+    /**
+     * @param $itemId
+     * @param $message
+     * @param string $sensitivity
+     * @param array $options
+     * @return Type\ItemIdType[]
+     */
+    public function declineMeeting($itemId, $message, $sensitivity = 'Private', $options = array())
+    {
+        $request = array(
+            'DeclineItem' => array(
+                'Sensitivity' => $sensitivity,
+                'Body' => array('BodyType' => 'HTML', '_value' => $message),
+                'ReferenceItemId' => $itemId->toArray()
+            )
         );
 
-        $acceptItem = array('AcceptItem' => array(array_replace_recursive($acceptItem, $options)));
-        return $this->createItems($acceptItem, array('MessageDisposition'=>'SendOnly'));
+        $defaultOptions = array('MessageDisposition' => 'SendOnly');
+        $options = array_replace_recursive($defaultOptions, $options);
+
+        $return = $this->createItems($request, $options)->getCalendarItem();
+        if (!is_array($request)) {
+            $return = array($return);
+        }
+
+        return $return;
     }
 }