diff --git a/Doc/library/xmlrpc.client.rst b/Doc/library/xmlrpc.client.rst
index e72770a..1871c99 100644
--- a/Doc/library/xmlrpc.client.rst
+++ b/Doc/library/xmlrpc.client.rst
@@ -8,7 +8,7 @@
 
 
 .. XXX Not everything is documented yet.  It might be good to describe
-   Marshaller, Unmarshaller, getparser, dumps, loads, and Transport.
+   Marshaller, Unmarshaller, getparser and Transport.
 
 **Source code:** :source:`Lib/xmlrpc/client.py`
 
@@ -21,7 +21,12 @@
 between conformable Python objects and XML on the wire.
 
 
-.. class:: ServerProxy(uri, transport=None, encoding=None, verbose=False, allow_none=False, use_datetime=False)
+.. class:: ServerProxy(uri, transport=None, encoding=None, verbose=False, \
+                       allow_none=False, use_datetime=False, \
+                       use_builtin_types=False)
+
+   .. versionchanged:: 3.3
+      The *use_builtin_types* flag was added.
 
    A :class:`ServerProxy` instance is an object that manages communication with a
    remote XML-RPC server.  The required first argument is a URI (Uniform Resource
@@ -34,9 +39,13 @@
    XML; the default behaviour is for ``None`` to raise a :exc:`TypeError`. This is
    a commonly-used extension to the XML-RPC specification, but isn't supported by
    all clients and servers; see http://ontosys.com/xml-rpc/extensions.php for a
-   description.  The *use_datetime* flag can be used to cause date/time values to
-   be presented as :class:`datetime.datetime` objects; this is false by default.
-   :class:`datetime.datetime` objects may be passed to calls.
+   description.  The *use_builtin_types* flag can be used to cause date/time values
+   to be presented as :class:`datetime.datetime` objects and binary data to be
+   presented as :class:`bytes` objects; this flag is false by default.
+   :class:`datetime.datetime` and :class:`bytes` objects may be passed to calls.
+
+   The obsolete *use_datetime* flag is similar to *use_builtin_types* but it
+   applies only to date/time values.
 
    Both the HTTP and HTTPS transports support the URL syntax extension for HTTP
    Basic Authentication: ``http://user:pass@host:port/path``.  The  ``user:pass``
@@ -78,12 +87,12 @@
    |                                 | only their *__dict__* attribute is          |
    |                                 | transmitted.                                |
    +---------------------------------+---------------------------------------------+
-   | :const:`dates`                  | in seconds since the epoch (pass in an      |
-   |                                 | instance of the :class:`DateTime` class) or |
+   | :const:`dates`                  | In seconds since the epoch.  Pass in an     |
+   |                                 | instance of the :class:`DateTime` class or  |
    |                                 | a :class:`datetime.datetime` instance.      |
    +---------------------------------+---------------------------------------------+
-   | :const:`binary data`            | pass in an instance of the :class:`Binary`  |
-   |                                 | wrapper class                               |
+   | :const:`binary data`            | Pass in an instance of the :class:`Binary`  |
+   |                                 | wrapper class or a :class:`bytes` instance. |
    +---------------------------------+---------------------------------------------+
 
    This is the full set of data types supported by XML-RPC.  Method calls may also
@@ -98,8 +107,9 @@
    ensure that the string is free of characters that aren't allowed in XML, such as
    the control characters with ASCII values between 0 and 31 (except, of course,
    tab, newline and carriage return); failing to do this will result in an XML-RPC
-   request that isn't well-formed XML.  If you have to pass arbitrary strings via
-   XML-RPC, use the :class:`Binary` wrapper class described below.
+   request that isn't well-formed XML.  If you have to pass arbitrary bytes
+   via XML-RPC, use the :class:`bytes` class or the class:`Binary` wrapper class
+   described below.
 
    :class:`Server` is retained as an alias for :class:`ServerProxy` for backwards
    compatibility.  New code should use :class:`ServerProxy`.
@@ -249,7 +259,7 @@
 Binary Objects
 --------------
 
-This class may be initialized from string data (which may include NULs). The
+This class may be initialized from bytes data (which may include NULs). The
 primary access to the content of a :class:`Binary` object is provided by an
 attribute:
 
@@ -257,15 +267,15 @@
 .. attribute:: Binary.data
 
    The binary data encapsulated by the :class:`Binary` instance.  The data is
-   provided as an 8-bit string.
+   provided as a :class:`bytes` object.
 
 :class:`Binary` objects have the following methods, supported mainly for
 internal use by the marshalling/unmarshalling code:
 
 
-.. method:: Binary.decode(string)
+.. method:: Binary.decode(bytes)
 
-   Accept a base64 string and decode it as the instance's new data.
+   Accept a base64 :class:`bytes` object and decode it as the instance's new data.
 
 
 .. method:: Binary.encode(out)
@@ -471,14 +481,21 @@
    it via an extension,  provide a true value for *allow_none*.
 
 
-.. function:: loads(data, use_datetime=False)
+.. function:: loads(data, use_datetime=False, use_builtin_types=False)
 
    Convert an XML-RPC request or response into Python objects, a ``(params,
    methodname)``.  *params* is a tuple of argument; *methodname* is a string, or
    ``None`` if no method name is present in the packet. If the XML-RPC packet
    represents a fault condition, this function will raise a :exc:`Fault` exception.
-   The *use_datetime* flag can be used to cause date/time values to be presented as
-   :class:`datetime.datetime` objects; this is false by default.
+   The *use_builtin_types* flag can be used to cause date/time values to be
+   presented as :class:`datetime.datetime` objects and binary data to be
+   presented as :class:`bytes` objects; this flag is false by default.
+
+   The obsolete *use_datetime* flag is similar to *use_builtin_types* but it
+   applies only to date/time values.
+
+   .. versionchanged:: 3.3
+      The *use_builtin_types* flag was added.
 
 
 .. _xmlrpc-client-example: