diff --git a/Doc/library/json.rst b/Doc/library/json.rst
index f708052..bb26f35 100644
--- a/Doc/library/json.rst
+++ b/Doc/library/json.rst
@@ -154,7 +154,7 @@
 
    To use a custom :class:`JSONEncoder` subclass (e.g. one that overrides the
    :meth:`default` method to serialize additional types), specify it with the
-   *cls* kwarg.
+   *cls* kwarg; otherwise :class:`JSONEncoder` is used.
 
 
 .. function:: dumps(obj[, skipkeys[, ensure_ascii[, check_circular[, allow_nan[, cls[, indent[, separators[, encoding[, default[, **kw]]]]]]]]]])
@@ -209,8 +209,8 @@
    are encountered.
 
    To use a custom :class:`JSONDecoder` subclass, specify it with the ``cls``
-   kwarg.  Additional keyword arguments will be passed to the constructor of the
-   class.
+   kwarg; otherwise :class:`JSONDecoder` is used.  Additional keyword arguments
+   will be passed to the constructor of the class.
 
 
 .. function:: loads(s[, encoding[, cls[, object_hook[, parse_float[, parse_int[, parse_constant[, object_pairs_hook[, **kw]]]]]]]])
@@ -296,6 +296,11 @@
    ``'false'``.  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'``.
+
 
    .. method:: decode(s)