diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11b043e..f1a20be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 1.6 (2014-1-13)
+
+Enhancement:
+  - adjust file attachment/inline name (#21 @travelton)
+
+## 1.5 (2013-12-13)
+
+Enhancement:
+  - added ability to define non-https endpoint for debugging purposes (#23 @travelton)
+
 ## 1.4 (2013-10-16)
 
 Bugfixes:
diff --git a/README.md b/README.md
index dc31d17..77d5338 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ composer and the Mailgun SDK.
 curl -sS https://getcomposer.org/installer | php
 
 # Add Mailgun as a dependency
-php composer.phar require mailgun/mailgun-php:~1.5
+php composer.phar require mailgun/mailgun-php:~1.6
 ``` 
 
 **For shared hosts without SSH access, check out our [Shared Host Instructions](SharedHostInstall.md).**
diff --git a/composer.json b/composer.json
index 8eac3e3..bdb67a3 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "mailgun/mailgun-php",
     "description": "The Mailgun SDK provides methods for all API functions.",
     "require": {
-        "guzzle/guzzle": "3.7.*"
+        "guzzle/guzzle": "3.8.*"
     },
     "require-dev": {
         "phpunit/phpunit": "3.7.*"
diff --git a/src/Mailgun/Connection/RestClient.php b/src/Mailgun/Connection/RestClient.php
index 65cf7b9..95a0d6e 100644
--- a/src/Mailgun/Connection/RestClient.php
+++ b/src/Mailgun/Connection/RestClient.php
@@ -39,12 +39,28 @@ class RestClient{
 		}
 		if(isset($files["attachment"])){
 			foreach($files["attachment"] as $attachment){
-				$request->addPostFile("attachment", $attachment);
+				// Backward compatibility code
+				if (is_array($attachment)){
+					$request->addPostFile("attachment", 
+										  $attachment['filePath'], null, 
+										  $attachment['remoteName']);	
+				}
+				else{
+					$request->addPostFile("attachment", $attachment);
+				}
 			}
 		}
 		if(isset($files["inline"])){
-			foreach($files["inline"] as $attachment){
-				$request->addPostFile("inline", $attachment);
+			foreach($files["inline"] as $inline){
+				// Backward compatibility code
+				if (is_array($inline)){
+					$request->addPostFile("inline", 
+										  $inline['filePath'], null, 
+										  $inline['remoteName']);	
+				}
+				else{
+					$request->addPostFile("inline", $inline);
+				}			
 			}
 		}
 
diff --git a/src/Mailgun/Messages/MessageBuilder.php b/src/Mailgun/Messages/MessageBuilder.php
index 6fa5a0d..62fbfed 100644
--- a/src/Mailgun/Messages/MessageBuilder.php
+++ b/src/Mailgun/Messages/MessageBuilder.php
@@ -136,13 +136,16 @@ class MessageBuilder{
 		return $this->message['html'];
 	}
 	
-	public function addAttachment($attachmentPath){
+	public function addAttachment($attachmentPath, $attachmentName = null){
 		if(preg_match("/^@/", $attachmentPath)){
 			if(isset($this->files["attachment"])){
-				array_push($this->files["attachment"], $attachmentPath);
+				$attachment = array('filePath'   => $attachmentPath, 
+									'remoteName' => $attachmentName);
+				array_push($this->files["attachment"], $attachment);
 				}	
 				else{
-					$this->files["attachment"] = array($attachmentPath);
+					$this->files["attachment"] = array(array('filePath'   => $attachmentPath, 
+												       'remoteName' => $attachmentName));
 				}
 			return true;
 		}
@@ -151,16 +154,18 @@ class MessageBuilder{
 		}
 	}
 	
-	public function addInlineImage($inlineImagePath){
+	public function addInlineImage($inlineImagePath, $inlineImageName = null){
 		if(preg_match("/^@/", $inlineImagePath)){
 			if(isset($this->files['inline'])){
-				array_push($this->files['inline'] , $inlineImagePath);
-				return true;
+				$inlineAttachment = array('filePath'   => $inlineImagePath,
+										  'remoteName' => $inlineImageName);
+				array_push($this->files['inline'] , $inlineAttachment);
 				}
 			else{
-				$this->files['inline'] = array($inlineImagePath);
-				return true;
+				$this->files['inline'] = array(array('filePath'   => $inlineImagePath,
+										  	   'remoteName' => $inlineImageName));
 			}
+			return true;
 		}
 		else{
 			throw new InvalidParameter(INVALID_PARAMETER_INLINE);
diff --git a/tests/Mailgun/Tests/Messages/MessageBuilderTest.php b/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
index 2c593ee..18e89fe 100644
--- a/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
+++ b/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
@@ -117,14 +117,40 @@ class MessageBuilderTest extends \Mailgun\Tests\MailgunTestCase{
 		$message->addAttachment("@../TestAssets/mailgun_icon.png");
 		$message->addAttachment("@../TestAssets/rackspace_logo.png");
 		$messageObj = $message->getFiles();
-		$this->assertEquals(array("attachment" => array("@../TestAssets/mailgun_icon.png", "@../TestAssets/rackspace_logo.png")), $messageObj);
+		$this->assertEquals(array(array('filePath' => "@../TestAssets/mailgun_icon.png",
+								  'remoteName' => null), 
+							array('filePath' => "@../TestAssets/rackspace_logo.png",
+								  'remoteName' => null)), $messageObj["attachment"]);
 	}
 	public function testAddInlineImages(){
 		$message = $this->client->MessageBuilder();
 		$message->addInlineImage("@../TestAssets/mailgun_icon.png");
 		$message->addInlineImage("@../TestAssets/rackspace_logo.png");
 		$messageObj = $message->getFiles();
-		$this->assertEquals(array("inline" => array("@../TestAssets/mailgun_icon.png", "@../TestAssets/rackspace_logo.png")), $messageObj);
+		$this->assertEquals(array(array('filePath' => "@../TestAssets/mailgun_icon.png",
+										'remoteName' => null), 
+							array('filePath' => "@../TestAssets/rackspace_logo.png",
+								  'remoteName' => null)), $messageObj['inline']);
+	}
+	public function testAddAttachmentsPostName(){
+		$message = $this->client->MessageBuilder();
+		$message->addAttachment('@../TestAssets/mailgun_icon.png', 'mg_icon.png');
+		$message->addAttachment('@../TestAssets/rackspace_logo.png', 'rs_logo.png');
+		$messageObj = $message->getFiles();
+		$this->assertEquals(array(array('filePath' => '@../TestAssets/mailgun_icon.png',
+								  'remoteName' => 'mg_icon.png'), 
+							array('filePath' => '@../TestAssets/rackspace_logo.png',
+								  'remoteName' => 'rs_logo.png')), $messageObj["attachment"]);
+	}
+	public function testAddInlineImagePostName(){
+		$message = $this->client->MessageBuilder();
+		$message->addInlineImage('@../TestAssets/mailgun_icon.png', 'mg_icon.png');
+		$message->addInlineImage('@../TestAssets/rackspace_logo.png', 'rs_logo.png');
+		$messageObj = $message->getFiles();
+		$this->assertEquals(array(array('filePath' => '@../TestAssets/mailgun_icon.png',
+										'remoteName' => 'mg_icon.png'), 
+							array('filePath' => '@../TestAssets/rackspace_logo.png',
+								  'remoteName' => 'rs_logo.png')), $messageObj['inline']);
 	}
 	public function testsetTestMode(){
 		$message = $this->client->MessageBuilder();