diff --git a/Lib/json/__init__.py b/Lib/json/__init__.py
index ba584a3..414c702 100644
--- a/Lib/json/__init__.py
+++ b/Lib/json/__init__.py
@@ -160,7 +160,7 @@
 
     To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
     ``.default()`` method to serialize additional types), specify it with
-    the ``cls`` kwarg.
+    the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
 
     """
     # cached encoder
@@ -220,7 +220,7 @@
 
     To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
     ``.default()`` method to serialize additional types), specify it with
-    the ``cls`` kwarg.
+    the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
 
     """
     # cached encoder
@@ -259,8 +259,16 @@
     ``object_hook`` will be used instead of the ``dict``. This feature
     can be used to implement custom decoders (e.g. JSON-RPC class hinting).
 
+    ``object_pairs_hook`` is an optional function that will be called with the
+    result of any object literal decoded with an ordered list of pairs.  The
+    return value of ``object_pairs_hook`` will be used instead of the ``dict``.
+    This feature can be used to implement custom decoders that rely on the
+    order that the key and value pairs are decoded (for example,
+    collections.OrderedDict will remember the order of insertion). If
+    ``object_hook`` is also defined, the ``object_pairs_hook`` takes priority.
+
     To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-    kwarg.
+    kwarg; otherwise ``JSONDecoder`` is used.
 
     """
     return loads(fp.read(),
@@ -285,6 +293,14 @@
     ``object_hook`` will be used instead of the ``dict``. This feature
     can be used to implement custom decoders (e.g. JSON-RPC class hinting).
 
+    ``object_pairs_hook`` is an optional function that will be called with the
+    result of any object literal decoded with an ordered list of pairs.  The
+    return value of ``object_pairs_hook`` will be used instead of the ``dict``.
+    This feature can be used to implement custom decoders that rely on the
+    order that the key and value pairs are decoded (for example,
+    collections.OrderedDict will remember the order of insertion). If
+    ``object_hook`` is also defined, the ``object_pairs_hook`` takes priority.
+
     ``parse_float``, if specified, will be called with the string
     of every JSON float to be decoded. By default this is equivalent to
     float(num_str). This can be used to use another datatype or parser
@@ -301,7 +317,7 @@
     are encountered.
 
     To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-    kwarg.
+    kwarg; otherwise ``JSONDecoder`` is used.
 
     """
     if (cls is None and encoding is None and object_hook is None and
diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py
index 73236ed..b9745f7 100644
--- a/Lib/json/decoder.py
+++ b/Lib/json/decoder.py
@@ -310,6 +310,15 @@
         place of the given ``dict``.  This can be used to provide custom
         deserializations (e.g. to support JSON-RPC class hinting).
 
+        ``object_pairs_hook``, if specified will be called with the result of
+        every JSON object decoded with an ordered list of pairs.  The return
+        value of ``object_pairs_hook`` will be used instead of the ``dict``.
+        This feature can be used to implement custom decoders that rely on the
+        order that the key and value pairs are decoded (for example,
+        collections.OrderedDict will remember the order of insertion). If
+        ``object_hook`` is also defined, the ``object_pairs_hook`` takes
+        priority.
+
         ``parse_float``, if specified, will be called with the string
         of every JSON float to be decoded. By default this is equivalent to
         float(num_str). This can be used to use another datatype or parser
@@ -325,6 +334,11 @@
         This can be used to raise an exception if invalid JSON numbers
         are encountered.
 
+        If ``strict`` is false (true is the default), then control
+        characters will be allowed inside strings.  Control characters in
+        this context are those with character codes in the 0-31 range,
+        including ``'\\t'`` (tab), ``'\\n'``, ``'\\r'`` and ``'\\0'``.
+
         """
         self.encoding = encoding
         self.object_hook = object_hook