diff --git a/lib/api/ktcmis/ktObjectService.inc.php b/lib/api/ktcmis/ktObjectService.inc.php
index c0a72ab..4b4abd9 100644
--- a/lib/api/ktcmis/ktObjectService.inc.php
+++ b/lib/api/ktcmis/ktObjectService.inc.php
@@ -181,12 +181,13 @@ class KTObjectService extends KTCMISBase {
      *  
      * @param string $repositoryId
      * @param string $objectId
+     * @param string $streamId [optional for documents] Specifies the rendition to retrieve if not original document
      * @return string $contentStream (binary or text data)
      */
-    function getContentStream($repositoryId, $objectId)
+    function getContentStream($repositoryId, $objectId, $streamId = null)
     {
         try {
-            $contentStream = $this->ObjectService->getContentStream($repositoryId, $objectId);
+            $contentStream = $this->ObjectService->getContentStream($repositoryId, $objectId, $streamId);
         }
         catch (Exception $e)
         {
diff --git a/lib/api/ktcmis/ktVersioningService.inc.php b/lib/api/ktcmis/ktVersioningService.inc.php
index 46aea33..0349f77 100644
--- a/lib/api/ktcmis/ktVersioningService.inc.php
+++ b/lib/api/ktcmis/ktVersioningService.inc.php
@@ -110,15 +110,14 @@ class KTVersioningService extends KTCMISBase {
      * Checks out a document and creates the PWC (Private Working Copy) which will represent the checked out document
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
+     * @param string $objectId
      * @return array results
      */
     // TODO set up delivery of content stream? or is that up to the CMIS client?
-    public function checkOut($repositoryId, $documentId, $changeToken = '')
+    public function checkOut($repositoryId, $objectId)
     {
         try {
-            $result = $this->VersioningService->checkOut($repositoryId, $documentId, $changeToken);
+            $result = $this->VersioningService->checkOut($repositoryId, $objectId);
         }
         catch (Exception $e)
         {
@@ -138,18 +137,17 @@ class KTVersioningService extends KTCMISBase {
      * Reverses the effect of a checkout: I.E. deletes the PWC (Private Working Copy) and re-sets the status of the document to "not checked out" 
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
+     * @param string $objectId
      */
     // TODO exceptions:
     //      •	ConstraintViolationException: The Repository SHALL throw this exception if ANY of the following conditions are met:
     //      o	The Document’s Object-Type definition’s versionable attribute is FALSE. 
     //      •	updateConflictException
     //      •	versioningException
-    public function cancelCheckOut($repositoryId, $documentId, $changeToken = '')
+    public function cancelCheckOut($repositoryId, $objectId)
     {
         try {
-            $result = $this->VersioningService->cancelCheckOut($repositoryId, $documentId, $changeToken);
+            $result = $this->VersioningService->cancelCheckOut($repositoryId, $objectId);
         }
         catch (Exception $e)
         {
@@ -169,18 +167,22 @@ class KTVersioningService extends KTCMISBase {
      * Checks in a checked out document
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param boolean $major
-     * @param string $changeToken [optional]
+     * @param string $objectId
+     * @param boolean $major [optional] defaults to true
      * @param array $properties [optional]
      * @param contentStream $contentStream [optional]
      * @param string $checkinComment [optional]
-     * @return string $documentId
+     * @param array $policies
+     * @param array $addACEs
+     * @param array $removeACEs
+     * @return string $objectId
      */
-    public function checkIn($repositoryId, $documentId, $major, $contentStream = null, $changeToken = '', $properties = array(), $checkinComment = '')
+    public function checkIn($repositoryId, $objectId, $major = true, $properties = array(), $contentStream = null, 
+    						$checkinComment = '', $policies = array(), $addACEs = array(), $removeACEs = array())
     {
         try {
-            $result = $this->VersioningService->checkIn($repositoryId, $documentId, $major, $contentStream, $changeToken, $properties, $checkinComment);
+            $result = $this->VersioningService->checkIn($repositoryId, $objectId, $major, $properties, $contentStream, 
+            											$checkinComment, $policies, $addACEs, $removeACEs);
         }
         catch (Exception $e)
         {
diff --git a/lib/api/ktcmis/services/CMISObjectService.inc.php b/lib/api/ktcmis/services/CMISObjectService.inc.php
index e99b16e..4c54fe6 100644
--- a/lib/api/ktcmis/services/CMISObjectService.inc.php
+++ b/lib/api/ktcmis/services/CMISObjectService.inc.php
@@ -401,16 +401,16 @@ class CMISObjectService {
     }
     
     /**
-     * Fetches the content stream data for an object
+     * Fetches the content stream data for an object, or fetched a rendition stream for a specified rendition
      *  
      * @param string $repositoryId
      * @param string $objectId
-     * @return string $contentStream (binary or text data)
+     * @param string $streamId [optional for documents] Specifies the rendition to retrieve if not original document
+     * @return string $contentStream (binary [base64 encoded] or text data)
      */
-    // NOTE streamNotSupportedException: The Repository SHALL throw this exception if the Object-Type definition 
-    //      specified by the objectId parameter’s “contentStreamAllowed� attribute is set to “not allowed�.
-    //      
-    function getContentStream($repositoryId, $objectId)
+    // NOTE Each CMIS protocol binding MAY provide a way for fetching a sub-range within a content stream, 
+    //      in a manner appropriate to that protocol.
+    function getContentStream($repositoryId, $objectId, $streamId = null)
     {
         $contentStream = null;
         
@@ -426,13 +426,11 @@ class CMISObjectService {
         $objectClass = 'CMIS' . $typeId . 'Object';
         $CMISObject = new $objectClass($objectId, $this->ktapi);
         
-        // if content stream is not allowed for this object type definition, throw a ConstraintViolationException
+        // if content stream is not allowed for this object type definition, or the specified object does not have 
+        // a content/rendition stream, throw a ConstraintViolationException
         if (($CMISObject->getAttribute('contentStreamAllowed') == 'notAllowed'))
         {
-            // NOTE spec version 0.61c specifies both a ConstraintViolationException and a StreamNotSupportedException
-            //      for this case.  Choosing to throw StreamNotSupportedException until the specification is clarified
-            //      as it is a more specific exception
-            throw new StreamNotSupportedException('Content Streams are not allowed for this object type');
+            throw new ConstraintViolationException('This object does not have a content stream of the requested type');
         }
         
         // now go on to fetching the content stream
diff --git a/lib/api/ktcmis/services/CMISVersioningService.inc.php b/lib/api/ktcmis/services/CMISVersioningService.inc.php
index e23beb0..8507255 100644
--- a/lib/api/ktcmis/services/CMISVersioningService.inc.php
+++ b/lib/api/ktcmis/services/CMISVersioningService.inc.php
@@ -71,54 +71,58 @@ class CMISVersioningService {
      * Checks out a document and creates the PWC (Private Working Copy) which will represent the checked out document
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
-     * @return string $documentId The id of the PWC object
+     * @param string $objectId
+     * @return string $objectId The id of the PWC object
      * @return boolean $contentCopied TRUE if contentStream is a copy of the document content stream, FALSE if contentStream not set
      */
-    // TODO exceptions:
-    //      •	versioningException: The repository MAY throw this exception if the object is a non-current Document Version.
     // NOTE since we need to return two values, we return one via argument by reference
-    //      since $documentId already exists in the argument list, that was chosen as the "return by reference" value
+    //      since $objectId already exists in the argument list, that was chosen as the "return by reference" value
     // TODO set up delivery of content stream? or is that up to the CMIS client?
-    public function checkOut($repositoryId, &$documentId, $changeToken = '')
+    public function checkOut($repositoryId, &$objectId)
     {
         $contentCopied = false;
-        
-        $documentId = CMISUtil::decodeObjectId($documentId, $typeId);
+
+        $objectId = CMISUtil::decodeObjectId($objectId, $typeId);
 
         // NOTE We are not planning on persisting the PWC beyond the current session, it will be re-created on access of the checked out document
         // TODO consider persisting in the database?  How will this relate to JSR if we are switching to that?
         // NOTE within the current system it is assumed if a new document metadata version is created that this is the latest version of the document
         // TODO see if there is an easy way to modify this, else we may not have an easy way to persist PWC objects
-        
+
         // throw updateConflictException if the operation is attempting to update an object that is no longer current (as determined by the repository).
         try {
-            $pwc = new CMISDocumentObject($documentId, $this->ktapi);
+            $pwc = new CMISDocumentObject($objectId, $this->ktapi);
         }
         catch (exception $e) {
             throw new UpdateConflictException($e->getMessage());
         }
-        
+
         // throw exception if the object is not versionable
         if (!$pwc->getAttribute('versionable')) {
             throw new ConstraintViolationException('This document is not versionable and may not be checked out');
         }
-        
+
+        // check that this is the latest version
+        if ($pwc->getProperty('isLatestVersion') != true) {
+            throw new VersioningException('The document is not the latest version and cannot be checked out');
+        }
+
         // NOTE KTAPI as currently implemented does not give a direct response which indicates if the document is already checked out,
         //      as long as the same user is calling the checkout again, so should we add a check here specifically?
 
         // run checkout process - set $download = false (third function argument) as we want to return the document content via the contentStream
-        $response = $this->ktapi->checkout_document($documentId, 'CMIS Checkout Action', false, $sig_username, $sig_password);
+        $response = $this->ktapi->checkout_document($objectId, 'CMIS Checkout Action', false, $sig_username, $sig_password);
         // if there was an error, throw an exception
         if ($response['status_code'] == 1) {
             throw new StorageException($response['message']);
-        };
-        
+        }
+
         // if successful, set $contentCopied = true; unless contentStream is not set
-        if ($pwc->getProperty('contentStreamFilename') != '') $contentCopied = true;
-        $documentId = CMISUtil::encodeObjectId(DOCUMENT, $documentId);
-        
+        if ($pwc->getProperty('contentStreamFilename') != '') {
+            $contentCopied = true;
+        }
+        $objectId = CMISUtil::encodeObjectId(DOCUMENT, $objectId);
+
         // mark document object as checked out
         $pwc->setProperty('isVersionSeriesCheckedOut', true);
         $userName = '';
@@ -127,8 +131,8 @@ class CMISVersioningService {
             $userName = $user->getName();
         }
         $pwc->setProperty('versionSeriesCheckedOutBy', $userName);
-        $pwc->setProperty('versionSeriesCheckedOutId', $documentId);
-        
+        $pwc->setProperty('versionSeriesCheckedOutId', $objectId);
+
         return $contentCopied;
     }
     
@@ -136,19 +140,18 @@ class CMISVersioningService {
      * Reverses the effect of a checkout: I.E. deletes the PWC (Private Working Copy) and re-sets the status of the document to "not checked out" 
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
+     * @param string $objectId
      */
     // TODO exceptions:
     //      •	versioningException - The repository MAY throw this exception if the object is a non-current Document Version.
-    public function cancelCheckOut($repositoryId, $documentId, $changeToken = '')
+    public function cancelCheckOut($repositoryId, $objectId)
     {
-        $documentId = CMISUtil::decodeObjectId($documentId, $typeId);
+        $objectId = CMISUtil::decodeObjectId($objectId, $typeId);
         
         /* re-generate PWC object */
         // throw updateConflictException if the operation is attempting to update an object that is no longer current (as determined by the repository).
         try {
-            $pwc = new CMISDocumentObject($documentId, $this->ktapi);
+            $pwc = new CMISDocumentObject($objectId, $this->ktapi);
         }
         catch (exception $e) {
             throw new UpdateConflictException($e->getMessage());
@@ -159,10 +162,15 @@ class CMISVersioningService {
             throw new ConstraintViolationException('This document is not versionable and may not be checked out');
         }
         
+        // check that this is the latest version
+        if ($pwc->getProperty('isLatestVersion') != true) {
+            throw new VersioningException('The document is not the latest version');
+        }
+        
         // TODO delete PWC - since we are not persisting the PWC this is not necessary at the moment
         
         // cancel checkout
-        $response = $this->ktapi->undo_document_checkout($documentId, 'CMIS Cancel Checkout Action', $sig_username, $sig_password);
+        $response = $this->ktapi->undo_document_checkout($objectId, 'CMIS Cancel Checkout Action', $sig_username, $sig_password);
         
         // if there was any error in cancelling the checkout
         if ($response['status_code'] == 1) {
@@ -174,28 +182,35 @@ class CMISVersioningService {
      * Checks in a checked out document
      * 
      * @param string $repositoryId
-     * @param string $documentId
-     * @param boolean $major
-     * @param string $changeToken [optional]
+     * @param string $objectId
+     * @param boolean $major [optional] defaults to true
      * @param array $properties [optional]
      * @param contentStream $contentStream [optional]
      * @param string $checkinComment [optional]
-     * @return string $documentId
+     * @param array $policies
+     * @param array $addACEs
+     * @param array $removeACEs
+     * @return string $objectId
      */
-    // TODO Exceptions:
-    //        •	versioningException - The repository MAY throw this exception if the object is a non-current Document Version
-    public function checkIn($repositoryId, $documentId, $major, $contentStream = null, $changeToken = '', $properties = array(), $checkinComment = '')
+    // NOTE For repositories that do NOT support the optional “capabilityPWCUpdatable” capability, the properties
+    //      and contentStream input parameters MUST be provided on the checkIn method for updates to happen as part
+    //      of checkIn.
+    // NOTE Only those properties whose values are different than the original value of the object need to be submitted.
+    // NOTE we are not actually doing anything with the properties at this time, only the content stream
+    // TODO filename changes and anything else supported in web interface, possibly additional supported by CMIS clients
+    public function checkIn($repositoryId, $objectId, $major = true, $properties = array(), $contentStream = null,
+                            $checkinComment = '', $policies = array(), $addACEs = array(), $removeACEs = array())
     {
-        $documentId = CMISUtil::decodeObjectId($documentId, $typeId);
-        
+        $objectId = CMISUtil::decodeObjectId($objectId, $typeId);
+
         // throw updateConflictException if the operation is attempting to update an object that is no longer current (as determined by the repository).
         try {
-            $pwc = new CMISDocumentObject($documentId, $this->ktapi);
+            $pwc = new CMISDocumentObject($objectId, $this->ktapi);
         }
         catch (exception $e) {
             throw new UpdateConflictException($e->getMessage());
         }
-        
+
         // throw exception if the object is not versionable
         if (!$pwc->getAttribute('versionable')) {
             throw new ConstraintViolationException('This document is not versionable and may not be checked in');
@@ -209,11 +224,17 @@ class CMISVersioningService {
             // if we can't get the type definition, then we can't store the content
             throw new StorageException($e->getMessage());
         }
-        
-        if (($typeDefinition['attributes']['contentStreamAllowed'] == 'notAllowed') && !empty($contentStream)) {
+
+        // if content stream is required (capabilityPWCUpdatability == false) and no content stream is supplied, 
+        // throw a ConstraintViolationException
+        if (($typeDefinition['attributes']['contentStreamAllowed'] == 'required') && is_null($contentStream)) {
+            throw new RuntimeException('This repository requires a content stream for document update on checkin.  '
+                                     . 'Refusing to checkin an empty document');
+        }
+        else if (($typeDefinition['attributes']['contentStreamAllowed'] == 'notAllowed') && !empty($contentStream)) {
             throw new StreamNotSupportedException('Content Streams are not supported');
         }
-        
+
         // check that this is the latest version
         if ($pwc->getProperty('isLatestVersion') != true) {
             throw new VersioningException('The document is not the latest version and cannot be checked in');
@@ -221,15 +242,16 @@ class CMISVersioningService {
         
         // now do the checkin
         $tempfilename = CMISUtil::createTemporaryFile($contentStream);
-        $response = $this->ktapi->checkin_document($documentId, $pwc->getProperty('contentStreamFilename'), $reason, $tempfilename, $major,
-                                                   $sig_username, $sig_password);
-                                       
-        // if there was any error in cancelling the checkout
+        $reason = 'CMIS object checkin';
+        $response = $this->ktapi->checkin_document($objectId, $pwc->getProperty('contentStreamFilename'), $reason, $tempfilename, $major,
+        $sig_username, $sig_password);
+
+        // if there was any error checking in
         if ($response['status_code'] == 1) {
             throw new RuntimeException('There was an error checking in the document: ' . $response['message']);
         }
         
-        return CMISUtil::encodeObjectId(DOCUMENT, $documentId);
+        return CMISUtil::encodeObjectId(DOCUMENT, $objectId);
     }
     
 }
diff --git a/webservice/atompub/cmis/KT_cmis_atom_server.services.inc.php b/webservice/atompub/cmis/KT_cmis_atom_server.services.inc.php
index e7d8562..ff7242c 100644
--- a/webservice/atompub/cmis/KT_cmis_atom_server.services.inc.php
+++ b/webservice/atompub/cmis/KT_cmis_atom_server.services.inc.php
@@ -34,7 +34,7 @@ When POSTing an Atom Document, the atom fields take precedence over the CMIS pro
 include_once CMIS_ATOM_LIB_FOLDER . 'RepositoryService.inc.php';
 include_once CMIS_ATOM_LIB_FOLDER . 'NavigationService.inc.php';
 include_once CMIS_ATOM_LIB_FOLDER . 'ObjectService.inc.php';
-include_once CMIS_ATOM_LIB_FOLDER . 'VersioningService.inc.php';
+include_once CMIS_API . '/ktVersioningService.inc.php';
 include_once 'KT_cmis_atom_service_helper.inc.php';
 
 // TODO consider changing all responses from the webservice layer to return PEAR errors or success results instead of the half/half we have at the moment.
@@ -157,6 +157,7 @@ class KT_cmis_atom_service_folder extends KT_cmis_atom_service {
             $objectId = $this->params[2];
         }
         
+        // get object properties - todo send through original properties array and not modified version
         $cmisObjectProperties = KT_cmis_atom_service_helper::getCmisProperties($this->rawContent);
         $properties = array('name' => $title, 'summary' => $summary, 'objectTypeId' => $cmisObjectProperties['cmis:objectTypeId']);
         
@@ -188,7 +189,6 @@ class KT_cmis_atom_service_folder extends KT_cmis_atom_service {
 
         $ObjectService = new ObjectService(KT_cmis_atom_service_helper::getKt());
         
-        global $default;
         $success = false;
         $error = null;
         if ($action == 'create')
@@ -430,7 +430,7 @@ class KT_cmis_atom_service_document extends KT_cmis_atom_service {
         
         $repositoryId = KT_cmis_atom_service_helper::getRepositoryId($RepositoryService);
         
-        $VersioningService = new VersioningService(KT_cmis_atom_service_helper::getKt());
+        $VersioningService = new KTVersioningService(KT_cmis_atom_service_helper::getKt());
 
         // attempt delete
         $response = $VersioningService->deleteAllVersions($repositoryId, $this->params[0]);
@@ -491,13 +491,12 @@ class KT_cmis_atom_service_pwc extends KT_cmis_atom_service {
         
         $repositoryId = KT_cmis_atom_service_helper::getRepositoryId($RepositoryService);
         
-        $VersioningService = new VersioningService(KT_cmis_atom_service_helper::getKt());
+        $VersioningService = new KTVersioningService(KT_cmis_atom_service_helper::getKt());
 
         $response = $VersioningService->cancelCheckout($repositoryId, $this->params[0]);
 
-        if (PEAR::isError($response))
-        {
-            $feed = KT_cmis_atom_service_helper::getErrorFeed($this, self::STATUS_SERVER_ERROR, $response->getMessage());
+        if ($response['status_code'] == 1) {
+            $feed = KT_cmis_atom_service_helper::getErrorFeed($this, self::STATUS_SERVER_ERROR, $response['message']);
            // Expose the responseFeed
             $this->responseFeed = $feed;
             return null;
@@ -510,45 +509,41 @@ class KT_cmis_atom_service_pwc extends KT_cmis_atom_service {
     public function PUT_action()
     {
         $repositoryId = KT_cmis_atom_service_helper::getRepositoryId($RepositoryService);
-        
-        $VersioningService = new VersioningService(KT_cmis_atom_service_helper::getKt());
+        $VersioningService = new KTVersioningService(KT_cmis_atom_service_helper::getKt());
         $ObjectService = new ObjectService(KT_cmis_atom_service_helper::getKt());
+        
+        // get object properties
+        $cmisObjectProperties = KT_cmis_atom_service_helper::getCmisProperties($this->rawContent);
 
         // check for content stream
-        // NOTE this is a hack!  will not work with CMISSpaces at least, probably not with any client except RestTest and similar
-        //      where we can manually modify the input
-        // first we try for an atom content tag
-        $content = KT_cmis_atom_service_helper::getAtomValues($this->rawContent, 'content');
-        if (!empty($content)) {
-            $contentStream = $content;
-        }
-        // not found? try for a regular content tag
-        else {
-            $content = KT_cmis_atom_service_helper::findTag('content', $this->parsedXMLContent['@children'], null, false); 
-            $contentStream = $content['@value'];
-        }
-        
-        // if we haven't found it now, the real hack begins - retrieve the EXISTING content and submit this as the contentStream
+        $content = KT_cmis_atom_service_helper::getCmisContent($this->rawContent);
+        // NOTE not sure about the text type, will need testing, most content will be base64
+        $cmisContent = (isset($content['cmisra:base64']) 
+                            ? $content['cmisra:base64'] 
+                            : ((isset($content['cmisra:text'])) 
+                                    ? $content['cmisra:text'] 
+                                    : null));
+
+        // if we haven't found it now, the hack begins - retrieve the EXISTING content and submit this as the contentStream
         // this is needed because KnowledgeTree will not accept a checkin without a content stream but CMISSpaces (and possibly 
         // other CMIS clients are the same, does not send a content stream on checkin nor does it offer the user a method to choose one)
         // NOTE that if the content is INTENDED to be empty this and all the above checks will FAIL!
         // FIXME this is horrible, terrible, ugly and bad!
-        if (empty($contentStream)) {
-            $contentStream = base64_encode(KT_cmis_atom_service_helper::getContentStream($this, $ObjectService, $repositoryId));
+        if (empty($cmisContent)) {
+            $cmisContent = base64_encode(KT_cmis_atom_service_helper::getContentStream($this, $ObjectService, $repositoryId));
         }
         
-        // and if we don't have it by now, we give up...but leave the error to be generated by the underlying KnowledgeTree code
-        
+        // and if we don't have the content stream by now, we give up...but leave the error to be generated by the underlying KnowledgeTree code
         // checkin function call
         // TODO dynamically detect version change type - leaving this for now as the CMIS clients tested do not appear to 
         //      offer the choice to the user - perhaps it will turn out that this will come from somewhere else but for now
         //      we assume minor version updates only
         $major = false;
-        $response = $VersioningService->checkIn($repositoryId, $this->params[0], $major, $contentStream);
-
-        if (PEAR::isError($response))
-        {
-            $feed = KT_cmis_atom_service_helper::getErrorFeed($this, self::STATUS_SERVER_ERROR, $response->getMessage());
+        $checkinComment = '';
+        $response = $VersioningService->checkIn($repositoryId, $this->params[0], $major, $cmisObjectProperties, $cmisContent, $checkinComment);
+        
+        if ($response['status_code'] == 1) {
+            $feed = KT_cmis_atom_service_helper::getErrorFeed($this, self::STATUS_SERVER_ERROR, $response['message']);
             // Expose the responseFeed
             $this->responseFeed = $feed;
             return null;
@@ -630,7 +625,7 @@ class KT_cmis_atom_service_checkedout extends KT_cmis_atom_service {
     {
         $repositoryId = KT_cmis_atom_service_helper::getRepositoryId($RepositoryService);
         
-        $VersioningService = new VersioningService(KT_cmis_atom_service_helper::getKt());
+        $VersioningService = new KTVersioningService(KT_cmis_atom_service_helper::getKt());
         $ObjectService = new ObjectService(KT_cmis_atom_service_helper::getKt());
 
         $cmisObjectProperties = KT_cmis_atom_service_helper::getCmisProperties($this->rawContent);
@@ -646,8 +641,7 @@ class KT_cmis_atom_service_checkedout extends KT_cmis_atom_service {
         
         $response = $VersioningService->checkOut($repositoryId, $cmisObjectProperties['cmis:objectId']);
         
-        if (PEAR::isError($response))
-        {
+        if ($response['status_code'] == 1) {
             $feed = KT_cmis_atom_service_helper::getErrorFeed($this, self::STATUS_SERVER_ERROR, 'No object was specified for checkout');
             // Expose the responseFeed
             $this->responseFeed = $feed;
diff --git a/webservice/atompub/cmis/index.php b/webservice/atompub/cmis/index.php
index 983f2d4..f4601fe 100644
--- a/webservice/atompub/cmis/index.php
+++ b/webservice/atompub/cmis/index.php
@@ -49,6 +49,7 @@ define('KT_ATOM_LIB_FOLDER', '../../classes/atompub/');
 define('CMIS_APP_BASE_URI', trim(KT_APP_BASE_URI, '/'));
 define('CMIS_APP_SYSTEM_URI', KT_APP_SYSTEM_URI);
 define('CMIS_ATOM_LIB_FOLDER', trim(KT_ATOM_LIB_FOLDER, '/') . '/cmis/');
+define('CMIS_API', KT_LIB_DIR . '/api/ktcmis');
 
 /**
  * Check Realm Authentication
diff --git a/webservice/classes/atompub/cmis/ObjectService.inc.php b/webservice/classes/atompub/cmis/ObjectService.inc.php
index 7a4e46d..886ac60 100644
--- a/webservice/classes/atompub/cmis/ObjectService.inc.php
+++ b/webservice/classes/atompub/cmis/ObjectService.inc.php
@@ -89,11 +89,12 @@ class ObjectService extends KTObjectService {
      *  
      * @param string $repositoryId
      * @param string $objectId
+     * @param string $streamId [optional for documents] Specifies the rendition to retrieve if not original document
      * @return string $contentStream (binary or text data)
      */
-    function getContentStream($repositoryId, $objectId)
+    function getContentStream($repositoryId, $objectId, $streamId = null)
     {
-        $result = parent::getContentStream($repositoryId, $objectId);
+        $result = parent::getContentStream($repositoryId, $objectId, $streamId);
 
         if ($result['status_code'] == 0) {
             return $result['results'];
diff --git a/webservice/classes/atompub/cmis/VersioningService.inc.php b/webservice/classes/atompub/cmis/VersioningService.inc.php
index 07a953c..4716cb0 100644
--- a/webservice/classes/atompub/cmis/VersioningService.inc.php
+++ b/webservice/classes/atompub/cmis/VersioningService.inc.php
@@ -27,75 +27,6 @@ class VersioningService extends KTVersioningService {
             return new PEAR_Error($result['message']);
         }
     }
-    
-    /**
-     * Checks out a document and creates the PWC (Private Working Copy) which will represent the checked out document
-     * 
-     * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
-     * @return array results
-     */
-    // TODO set up delivery of content stream? or is that up to the CMIS client?
-    public function checkOut($repositoryId, $documentId, $changeToken = '')
-    {
-        $result = parent::checkOut($repositoryId, $documentId, $changeToken);
-
-        if ($result['status_code'] == 0) {
-            return $result['results'];
-        }
-        else {
-            return new PEAR_Error($result['message']);
-        }
-    }
-    
-    /**
-     * Reverses the effect of a checkout: I.E. deletes the PWC (Private Working Copy) and re-sets the status of the document to "not checked out" 
-     * 
-     * @param string $repositoryId
-     * @param string $documentId
-     * @param string $changeToken [optional]
-     */
-    // TODO exceptions:
-    //      •	ConstraintViolationException: The Repository SHALL throw this exception if ANY of the following conditions are met:
-    //      o	The Document’s Object-Type definition’s versionable attribute is FALSE. 
-    //      •	updateConflictException
-    //      •	versioningException
-    public function cancelCheckOut($repositoryId, $documentId, $changeToken = '')
-    {
-        $result = parent::cancelCheckOut($repositoryId, $documentId, $changeToken);
-
-        if ($result['status_code'] == 0) {
-            return $result['results'];
-        }
-        else {
-            return new PEAR_Error($result['message']);
-        }
-    }
-    
-    /**
-     * Checks in a checked out document
-     * 
-     * @param string $repositoryId
-     * @param string $documentId
-     * @param boolean $major
-     * @param string $changeToken [optional]
-     * @param array $properties [optional]
-     * @param contentStream $contentStream [optional]
-     * @param string $checkinComment [optional]
-     * @return string $documentId
-     */
-    public function checkIn($repositoryId, $documentId, $major, $contentStream = null, $changeToken = '', $properties = array(), $checkinComment = '')
-    {
-        $result = parent::checkIn($repositoryId, $documentId, $major, $contentStream, $changeToken, $properties, $checkinComment);
-
-        if ($result['status_code'] == 0) {
-            return $result['results'];
-        }
-        else {
-            return new PEAR_Error($result['message']);
-        }
-    }
 
 }