diff --git a/README.md b/README.md
index b3e0d45..568ddcc 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+### NOTE: This project is no longer actively maintained.
+
 # PyReact
 
 PyReact is a Python wrapper around the [React](http://facebook.github.io/react/) JavaScript library and [JSX](http://facebook.github.io/react/docs/jsx-in-depth.html).
@@ -13,7 +15,7 @@ Specifically, it provides an API to transform JSX files into JavaScript from wit
 
 Alternatively, add it into your `requirements` file:
 
-    PyReact==0.4.1
+    PyReact==0.6.0
 
 
 **Dependencies**: PyReact uses [PyExecJS](https://github.com/doloopwhile/PyExecJS) to execute the bundled React code, which requires that a JS runtime environment is installed on your machine. We don't explicitly set a dependency on a runtime environment; Mac OS X comes bundled with one. If you're on a different platform, we recommend [PyV8](https://code.google.com/p/pyv8/).
@@ -28,10 +30,10 @@ from react import jsx
 # For multiple paths, use the JSXTransformer class.
 transformer = jsx.JSXTransformer()
 for jsx_path, js_path in my_paths:
-    transformer.transform(jsx_path, js_path)
+    transformer.transform(jsx_path, js_path=js_path)
 
 # For a single file, you can use a shortcut method.
-jsx.transform('path/to/input/file.jsx', 'path/to/output/file.js')
+jsx.transform('path/to/input/file.jsx', js_path='path/to/output/file.js')
 ```
 
 You can also use ``transform_string(jsx)`` method to transform strings:
diff --git a/VERSIONS.md b/VERSIONS.md
index a9953d8..475bcd3 100644
--- a/VERSIONS.md
+++ b/VERSIONS.md
@@ -11,3 +11,7 @@ This file lists the version(s) of React that are bundled with each version of Py
 | 0.3.1   | 0.10.0|
 | 0.4.0   | 0.11.0|
 | 0.4.1   | 0.11.2|
+| 0.5.0   | 0.12.0|
+| 0.5.1   | 0.12.1|
+| 0.5.2   | 0.12.1|
+| 0.6.0   | 0.13.3|
diff --git a/react/__init__.py b/react/__init__.py
index b155da1..4d1129d 100644
--- a/react/__init__.py
+++ b/react/__init__.py
@@ -13,5 +13,5 @@
 # limitations under the License.
 
 
-VERSION = '0.4.1'
-REACT_VERSION = '0.11.2'
+VERSION = '0.6.0'
+REACT_VERSION = '0.13.3'
diff --git a/react/jsx.py b/react/jsx.py
index 2a8bba2..070c6f4 100644
--- a/react/jsx.py
+++ b/react/jsx.py
@@ -18,29 +18,37 @@
 
 class JSXTransformer(object):
 
+    JSX_TRANSFORMER_JS_EXPR = '(global.JSXTransformer || module.exports)'
+
     def __init__(self):
         path = react.source.path_for('JSXTransformer.js')
         with open(path, 'rU') as f:
             self.context = execjs.compile(f.read())
 
-    def transform_string(self, jsx):
+    def transform_string(self, jsx, harmony=False, strip_types=False):
         """ Transform ``jsx`` JSX string into javascript
 
         :param jsx: JSX source code
         :type jsx: basestring
+        :keyword harmony: Transform ES6 code into ES3 (default: False)
+        :type harmony: bool
+        :keyword strip_types: Strip type declarations (default: False)
+        :type harmony: bool
         :return: compiled JS code
         :rtype: str
         """
+        opts = {'harmony': harmony, 'stripTypes': strip_types}
         try:
-            result = self.context.call('JSXTransformer.transform', jsx)
-            js = result['code']
-            return js
+            result = self.context.call(
+                '%s.transform' % self.JSX_TRANSFORMER_JS_EXPR, jsx, opts)
         except execjs.ProgramError as e:
-            raise TransformError(e.message[7:])
+            raise TransformError(str(e))
+        js = result['code']
+        return js
 
-    def transform(self, jsx_path, js_path=None):
+    def transform(self, jsx_path, js_path=None, **kwargs):
         with open(jsx_path, 'rU') as i:
-            js = self.transform_string(i.read())
+            js = self.transform_string(i.read(), **kwargs)
             if js_path:
                 with open(js_path, 'wb') as o:
                     o.write(js.encode('utf8'))
@@ -52,5 +60,8 @@ def __init__(self, message):
         Exception.__init__(self, message)
 
 
-def transform(jsx_path, js_path=None):
-    return JSXTransformer().transform(jsx_path, js_path)
+def transform(jsx_path, **opts):
+    return JSXTransformer().transform(jsx_path, **opts)
+
+def transform_string(jsx, **opts):
+    return JSXTransformer().transform_string(jsx, **opts)
diff --git a/react/test/files/malformed.jsx b/react/test/files/malformed.jsx
index c51c230..d9708c3 100644
--- a/react/test/files/malformed.jsx
+++ b/react/test/files/malformed.jsx
@@ -1,8 +1,6 @@
-/** @jsx React.DOM */
-
 var testComponent =
   <div>
     <ul>
       <li>Hello</li>
       <li>World<li>
-  </div>;
\ No newline at end of file
+  </div>;
diff --git a/react/test/files/test.js b/react/test/files/test.js
index 250af5c..b5066dc 100644
--- a/react/test/files/test.js
+++ b/react/test/files/test.js
@@ -1,9 +1,7 @@
-/** @jsx React.DOM */
-
 var testComponent =
-  React.DOM.div(null, 
-    React.DOM.ul(null, 
-      React.DOM.li(null, "Hello"), 
-      React.DOM.li(null, "World")
+  React.createElement("div", null, 
+    React.createElement("ul", null, 
+      React.createElement("li", null, "Hello"), 
+      React.createElement("li", null, "World")
     )
-  );
\ No newline at end of file
+  );
diff --git a/react/test/files/test.jsx b/react/test/files/test.jsx
index f47a6da..e836e31 100644
--- a/react/test/files/test.jsx
+++ b/react/test/files/test.jsx
@@ -1,9 +1,7 @@
-/** @jsx React.DOM */
-
 var testComponent =
   <div>
     <ul>
       <li>Hello</li>
       <li>World</li>
     </ul>
-  </div>;
\ No newline at end of file
+  </div>;
diff --git a/react/test/jsx.py b/react/test/jsx.py
index 8b59ae6..bd749bf 100644
--- a/react/test/jsx.py
+++ b/react/test/jsx.py
@@ -33,3 +33,15 @@ def test_transform(self):
         self.assertRaises(
             jsx.TransformError,
             lambda: jsx.transform(malformed_path))
+
+    def test_transform_string(self):
+        result = jsx.transform_string('<div />')
+        self.assertEquals(result, 'React.createElement("div", null)')
+
+    def test_transform_string_harmony(self):
+        result = jsx.transform_string('var {x} = y', harmony=True)
+        self.assertEquals(result, 'var $__0=  y,x=$__0.x')
+
+    def test_transform_string_strip_types(self):
+        result = jsx.transform_string('var x: Number = 1', strip_types=True)
+        self.assertEquals(result, 'var x         = 1')
diff --git a/react/utils/pipeline.py b/react/utils/pipeline.py
index b95c762..7fc8932 100644
--- a/react/utils/pipeline.py
+++ b/react/utils/pipeline.py
@@ -34,4 +34,4 @@ def compile_file(self, infile, outfile, outdated=False, force=False):
         try:
             return self.transformer.transform(infile, outfile)
         except TransformError as e:
-            raise CompilerError(e.message)
+            raise CompilerError(str(e))
diff --git a/setup.py b/setup.py
index cb82869..59ab67b 100644
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,6 @@
         'js/react/JSXTransformer.js',
     ]},
     install_requires=[
-        'PyExecJS >= 1.0.4',
+        'PyExecJS >= 1.0.5',
     ]
 )