diff --git a/README.rst b/README.rst
index 0959384..196b65f 100644
--- a/README.rst
+++ b/README.rst
@@ -6,6 +6,10 @@
    :target: http://badge.fury.io/py/python-odesk
    :alt: PyPI version
 
+.. image:: https://travis-ci.org/odesk/php-odesk.svg
+   :target: http://travis-ci.org/odesk/php-odesk
+   :alt: Build status
+
 Copyright (c) 2010-2014, oDesk http://www.odesk.com
 All rights reserved.
 
diff --git a/changelog.rst b/changelog.rst
index ef7c886..958e019 100644
--- a/changelog.rst
+++ b/changelog.rst
@@ -5,6 +5,13 @@
 Changelog
 ***************
 
+.. _0.5.7:
+
+Version 0.5.7
+-------------
+* Added new API call - :py:meth:`Accept or decline an offer <odesk.routers.offers.Offers.accept_or_decline>`.
+* Added new conditionally required parameter ``category2`` to :py:meth:`Post job <odesk.routers.hr.HR.post_job>` API.
+
 .. _0.5.6:
 
 Version 0.5.6
diff --git a/odesk/__init__.py b/odesk/__init__.py
index 2c9e64c..d780956 100644
--- a/odesk/__init__.py
+++ b/odesk/__init__.py
@@ -13,7 +13,7 @@
 
 """
 
-VERSION = '0.5.6'
+VERSION = '0.5.7'
 
 
 def get_version():
diff --git a/odesk/routers/offers.py b/odesk/routers/offers.py
index 4b39cc1..9ad2dc8 100644
--- a/odesk/routers/offers.py
+++ b/odesk/routers/offers.py
@@ -245,3 +245,20 @@ def get_freelancer_offer(self, offer_id):
 
         url = 'contractors/offers/{0}'.format(offer_id)
         return self.get(url, data)
+
+    def accept_or_decline(self, offer_id, action_name):
+        """
+        Get specific offer as freelancer.
+
+        *Parameters:*
+          :offer_id:         Offer reference ID.
+
+          :action_name:      The name of the action to run.
+
+        """
+        data = {}
+
+        data['action_name'] = action_name
+
+        url = 'contractors/actions/{0}'.format(offer_id)
+        return self.post(url, data)