Removed versionadded/changed annotations for 2.2.

docs/topics/testing/advanced.txt

@@ -628,10 +628,6 @@ utility methods in the ``django.test.utils`` module.
     databases should be setup for. If it's not provided, it defaults to all of
     :setting:`DATABASES` aliases.
 
-    .. versionadded:: 2.2
-
-        The ``aliases`` argument was added.
-
 .. function:: teardown_databases(old_config, parallel=0, keepdb=False)
 
     Destroys the test databases, restoring pre-test conditions.

docs/topics/testing/tools.txt

@@ -225,11 +225,6 @@ Use the ``django.test.Client`` class to make requests.
         :class:`Client`. This serialization also happens for :meth:`put`,
         :meth:`patch`, and :meth:`delete` requests.
 
-        .. versionchanged:: 2.2
-
-            The JSON serialization was extended to support lists and tuples. In
-            older versions, only dicts are serialized.
-
         If you provide any other ``content_type`` (e.g. :mimetype:`text/xml`
         for an XML payload), the contents of ``data`` are sent as-is in the
         POST request, using ``content_type`` in the HTTP ``Content-Type``
@@ -745,8 +740,6 @@ If your tests make any database queries, use subclasses
 
 .. attribute:: SimpleTestCase.databases
 
-    .. versionadded:: 2.2
-
     :class:`~SimpleTestCase` disallows database queries by default. This
     helps to avoid executing write queries which will affect other tests
     since each ``SimpleTestCase`` test isn't run in a transaction. If you
@@ -1152,8 +1145,6 @@ Multi-database support
 
 .. attribute:: TransactionTestCase.databases
 
-.. versionadded:: 2.2
-
 Django sets up a test database corresponding to every database that is
 defined in the :setting:`DATABASES` definition in your settings and referred to
 by at least one test through ``databases``.
@@ -1199,8 +1190,6 @@ The previous behavior of ``multi_db = True`` can be achieved by setting
 
 .. attribute:: TestCase.databases
 
-.. versionadded:: 2.2
-
 By default, only the ``default`` database will be wrapped in a transaction
 during a ``TestCase``'s execution and attempts to query other databases will
 result in assertion errors to prevent state leaking between tests.
@@ -1563,8 +1552,6 @@ your test suite.
 
 .. method:: SimpleTestCase.assertURLEqual(url1, url2, msg_prefix='')
 
-    .. versionadded:: 2.2
-
     Asserts that two URLs are the same, ignoring the order of query string
     parameters except for parameters with the same name. For example,
     ``/path/?x=1&y=2`` is equal to ``/path/?y=2&x=1``, but