Removed versionadded/changed annotations for 5.1.

This also removes remaining versionadded/changed annotations for older
versions.

25 files changed, 0 insertions, 307 deletions

diff --git a/docs/internals/contributing/writing-code/unit-tests.txt b/docs/internals/contributing/writing-code/unit-tests.txt
index 76f4a9e754..446d896abe 100644
--- a/docs/internals/contributing/writing-code/unit-tests.txt
+++ b/docs/internals/contributing/writing-code/unit-tests.txt
@@ -298,11 +298,6 @@ screen, one for a mobile screen, one for right-to-left languages on desktop,
 one for the dark mode on desktop, and one for high contrast mode on desktop
 when using chrome.
 
-.. versionchanged:: 5.1
-
-     The ``--screenshots`` option and ``@screenshot_cases`` decorator were
-     added.
-
 .. _running-unit-tests-dependencies:
 
 Running all the tests
diff --git a/docs/ref/contrib/admin/index.txt b/docs/ref/contrib/admin/index.txt
index 1b02b7d403..311b21ec6e 100644
--- a/docs/ref/contrib/admin/index.txt
+++ b/docs/ref/contrib/admin/index.txt
@@ -432,11 +432,6 @@ subclass::
         collapsed, using an expandable widget with a toggle for switching
         their visibility.
 
-        .. versionchanged:: 5.1
-
-            ``fieldsets`` using the ``collapse`` class now use ``<details>``
-            and ``<summary>`` elements, provided they define a ``name``.
-
     * ``description``
         A string of optional extra text to be displayed at the top of each
         fieldset, under the heading of the fieldset.
@@ -639,11 +634,6 @@ subclass::
           class PersonAdmin(admin.ModelAdmin):
               list_display = ["name", "decade_born_in"]
 
-    .. versionchanged:: 5.1
-
-        Support for using ``__`` lookups was added, when targeting related
-        fields.
-
     A few special cases to note about ``list_display``:
 
     * If the field is a ``ForeignKey``, Django will display the
@@ -2337,11 +2327,6 @@ The ``InlineModelAdmin`` class adds or customizes:
     configured in :attr:`~ModelAdmin.fieldsets`, inlines with a ``collapse``
     class will be initially collapsed using an expandable widget.
 
-    .. versionchanged:: 5.1
-
-        ``fieldsets`` using the ``collapse`` class now use ``<details>`` and
-        ``<summary>`` elements, provided they define a ``name``.
-
 .. attribute:: InlineModelAdmin.extra
 
     This controls the number of extra forms the formset will display in
diff --git a/docs/ref/contrib/contenttypes.txt b/docs/ref/contrib/contenttypes.txt
index 18eaff43b2..d8f4b24753 100644
--- a/docs/ref/contrib/contenttypes.txt
+++ b/docs/ref/contrib/contenttypes.txt
@@ -115,10 +115,6 @@ model it represents, or to retrieve objects from that model:
     on that model, returning the corresponding object. The ``using`` argument
     can be used to specify a different database than the default one.
 
-    .. versionchanged:: 5.1
-
-        The ``using`` argument was added.
-
 .. method:: ContentType.model_class()
 
     Returns the model class represented by this
diff --git a/docs/ref/contrib/gis/functions.txt b/docs/ref/contrib/gis/functions.txt
index ff62c17580..055c5217f7 100644
--- a/docs/ref/contrib/gis/functions.txt
+++ b/docs/ref/contrib/gis/functions.txt
@@ -238,10 +238,6 @@ polygon that can fully contain the geometry.
 
 The ``num_seg`` parameter is used only on PostGIS.
 
-.. versionchanged:: 5.1
-
-    SpatiaLite 5.1+ support was added.
-
 ``Centroid``
 ============
 
@@ -367,10 +363,6 @@ Creates geometry from `Well-known binary (WKB)`_ representation. The optional
 ``srid`` argument allows to specify the SRID of the resulting geometry.
 ``srid`` is ignored on Oracle.
 
-.. versionchanged:: 5.1
-
-    The ``srid`` argument was added.
-
 ``FromWKT``
 ===========
 
@@ -384,10 +376,6 @@ Creates geometry from `Well-known text (WKT)`_ representation. The optional
 ``srid`` argument allows to specify the SRID of the resulting geometry.
 ``srid`` is ignored on Oracle.
 
-.. versionchanged:: 5.1
-
-    The ``srid`` argument was added.
-
 ``GeoHash``
 ===========
 
diff --git a/docs/ref/contrib/gis/gdal.txt b/docs/ref/contrib/gis/gdal.txt
index 726cd83756..1ec04d342f 100644
--- a/docs/ref/contrib/gis/gdal.txt
+++ b/docs/ref/contrib/gis/gdal.txt
@@ -562,14 +562,10 @@ coordinate transformation:
 
     .. attribute:: is_3d
 
-    .. versionadded:: 5.1
-
     A boolean indicating if this geometry has Z coordinates.
 
     .. method:: set_3d(value)
 
-    .. versionadded:: 5.1
-
     A method that adds or removes the Z coordinate dimension.
 
     .. code-block:: pycon
@@ -583,14 +579,10 @@ coordinate transformation:
 
     .. attribute:: is_measured
 
-    .. versionadded:: 5.1
-
     A boolean indicating if this geometry has M coordinates.
 
     .. method:: set_measured(value)
 
-    .. versionadded:: 5.1
-
     A method to add or remove the M coordinate dimension.
 
     .. code-block:: pycon
@@ -863,11 +855,6 @@ coordinate transformation:
 
     Returns a :class:`Point` representing the centroid of this geometry.
 
-    .. versionchanged:: 5.1
-
-        ``centroid`` was promoted from a :class:`.Polygon` only attribute to
-        being available on all geometry types.
-
     .. attribute:: tuple
 
     Returns the coordinates of a point geometry as a tuple, the
@@ -916,8 +903,6 @@ coordinate transformation:
 
     .. attribute:: m
 
-    .. versionadded:: 5.1
-
     Returns the M coordinate of this point, or ``None`` if the Point does not
     have an M coordinate:
 
@@ -958,8 +943,6 @@ coordinate transformation:
 
     .. attribute:: m
 
-    .. versionadded:: 5.1
-
     Returns a list of M coordinates in this line or ``None`` if the line does
     not have M coordinates:
 
diff --git a/docs/ref/contrib/gis/geoquerysets.txt b/docs/ref/contrib/gis/geoquerysets.txt
index 19411b7304..cf50af2c9f 100644
--- a/docs/ref/contrib/gis/geoquerysets.txt
+++ b/docs/ref/contrib/gis/geoquerysets.txt
@@ -894,10 +894,6 @@ aggregate, except it can be several orders of magnitude faster than performing
 a union because it rolls up geometries into a collection or multi object, not
 caring about dissolving boundaries.
 
-.. versionchanged:: 5.1
-
-    MySQL 8.0.24+ support was added.
-
 .. versionchanged:: 5.2
 
     MariaDB 11.7+ support was added.
diff --git a/docs/ref/contrib/gis/measure.txt b/docs/ref/contrib/gis/measure.txt
index cee4211220..1d88ba129d 100644
--- a/docs/ref/contrib/gis/measure.txt
+++ b/docs/ref/contrib/gis/measure.txt
@@ -125,10 +125,6 @@ Unit Attribute                     Full name or alias(es)
 ``ha``                             Hectare
 =================================  ========================================
 
-.. versionchanged:: 5.1
-
-    Support for the ``ha`` unit was added.
-
 Measurement API
 ===============
 
diff --git a/docs/ref/contrib/postgres/indexes.txt b/docs/ref/contrib/postgres/indexes.txt
index 107d9c278d..f001fd0063 100644
--- a/docs/ref/contrib/postgres/indexes.txt
+++ b/docs/ref/contrib/postgres/indexes.txt
@@ -57,10 +57,6 @@ available from the ``django.contrib.postgres.indexes`` module.
     whether deduplication is enabled. PostgreSQL enables deduplication by
     default.
 
-    .. versionchanged:: 5.1
-
-        The ``deduplicate_items`` parameter was added.
-
     .. _fillfactor: https://www.postgresql.org/docs/current/sql-createindex.html#SQL-CREATEINDEX-STORAGE-PARAMETERS
     .. _deduplicate_items: https://www.postgresql.org/docs/current/btree-implementation.html#BTREE-DEDUPLICATION
 
diff --git a/docs/ref/databases.txt b/docs/ref/databases.txt
index d19c78b9ec..b3c429d8a2 100644
--- a/docs/ref/databases.txt
+++ b/docs/ref/databases.txt
@@ -250,8 +250,6 @@ database configuration in :setting:`DATABASES`::
 Connection pool
 ---------------
 
-.. versionadded:: 5.1
-
 To use a connection pool with `psycopg`_, you can either set ``"pool"`` in the
 :setting:`OPTIONS` part of your database configuration in :setting:`DATABASES`
 to be a dict to be passed to :class:`~psycopg:psycopg_pool.ConnectionPool`, or
@@ -898,8 +896,6 @@ If you're getting this error, you can solve it by:
 Transactions behavior
 ~~~~~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 5.1
-
 SQLite supports three transaction modes: ``DEFERRED``, ``IMMEDIATE``, and
 ``EXCLUSIVE``.
 
@@ -969,8 +965,6 @@ To enable the JSON1 extension you can follow the instruction on
 Setting pragma options
 ----------------------
 
-.. versionadded:: 5.1
-
 `Pragma options`_ can be set upon connection by using the ``init_command`` in
 the :setting:`OPTIONS` part of your database configuration in
 :setting:`DATABASES`. The example below shows how to enable extra durability of
diff --git a/docs/ref/files/storage.txt b/docs/ref/files/storage.txt
index 52c8f90427..228025fe3a 100644
--- a/docs/ref/files/storage.txt
+++ b/docs/ref/files/storage.txt
@@ -80,8 +80,6 @@ The ``FileSystemStorage`` class
 
     .. attribute:: allow_overwrite
 
-        .. versionadded:: 5.1
-
         Flag to control allowing saving a new file over an existing one.
         Defaults to ``False``.
 
diff --git a/docs/ref/forms/fields.txt b/docs/ref/forms/fields.txt
index 7ae5c121eb..91faea12f7 100644
--- a/docs/ref/forms/fields.txt
+++ b/docs/ref/forms/fields.txt
@@ -320,10 +320,6 @@ inside ``aria-describedby``:
     >>> print(f["username"])
     <input type="text" name="username" aria-describedby="custom-description id_username_helptext" maxlength="255" id="id_username" required>
 
-.. versionchanged:: 5.1
-
-    ``aria-describedby`` support was added for ``<fieldset>``.
-
 ``error_messages``
 ------------------
 
@@ -799,10 +795,6 @@ For each field, we describe the default widget used if you don't specify
         Defaults to 39, and behaves the same way as it does for
         :class:`CharField`.
 
-    .. versionchanged:: 4.2.18
-
-        The default value for ``max_length`` was set to 39 characters.
-
 ``ImageField``
 --------------
 
diff --git a/docs/ref/logging.txt b/docs/ref/logging.txt
index 24ab5d97f3..a045d4d7d7 100644
--- a/docs/ref/logging.txt
+++ b/docs/ref/logging.txt
@@ -214,8 +214,6 @@ messages during filesystem inspection and event subscription processes.
 ``django.contrib.auth``
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 4.2.16
-
 Log messages related to :doc:`contrib/auth`, particularly ``ERROR`` messages
 are generated when a :class:`~django.contrib.auth.forms.PasswordResetForm` is
 successfully submitted but the password reset email cannot be delivered due to
diff --git a/docs/ref/middleware.txt b/docs/ref/middleware.txt
index b5534ce8f6..e09df637f1 100644
--- a/docs/ref/middleware.txt
+++ b/docs/ref/middleware.txt
@@ -523,8 +523,6 @@ every incoming ``HttpRequest`` object. See :ref:`Authentication in web requests
         ``None``), or :attr:`redirect_field_name`. If ``None`` is returned, a query
         parameter won't be added.
 
-.. versionadded:: 5.1
-
 Redirects all unauthenticated requests to a login page, except for views
 excluded with :func:`~.django.contrib.auth.decorators.login_not_required`. The
 login page defaults to :setting:`settings.LOGIN_URL <LOGIN_URL>`, but can be
@@ -682,8 +680,6 @@ Here are some hints about the ordering of various Django middleware classes:
 
 #. :class:`~django.contrib.auth.middleware.LoginRequiredMiddleware`
 
-   .. versionadded:: 5.1
-
    After ``AuthenticationMiddleware``: uses user object.
 
 #. :class:`~django.contrib.messages.middleware.MessageMiddleware`
diff --git a/docs/ref/migration-operations.txt b/docs/ref/migration-operations.txt
index b969b3dbfd..f4d4ae96dd 100644
--- a/docs/ref/migration-operations.txt
+++ b/docs/ref/migration-operations.txt
@@ -498,8 +498,6 @@ For an example using ``SeparateDatabaseAndState``, see
 Operation category
 ==================
 
-.. versionadded:: 5.1
-
 .. currentmodule:: django.db.migrations.operations.base
 
 .. class:: OperationCategory
diff --git a/docs/ref/models/expressions.txt b/docs/ref/models/expressions.txt
index 5d5504dbe7..6a6356b3bb 100644
--- a/docs/ref/models/expressions.txt
+++ b/docs/ref/models/expressions.txt
@@ -188,8 +188,6 @@ the field value of each one, and saving each one back to the database::
 Slicing ``F()`` expressions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 5.1
-
 For string-based fields, text-based fields, and
 :class:`~django.contrib.postgres.fields.ArrayField`, you can use Python's
 array-slicing syntax. The indices are 0-based and the ``step`` argument to
@@ -920,20 +918,12 @@ ordinary sequence of rows.
     the standard start and end points, such as ``CURRENT ROW`` and ``UNBOUNDED
     FOLLOWING``.
 
-    .. versionchanged:: 5.1
-
-        The ``exclusion`` argument was added.
-
 .. class:: RowRange(start=None, end=None, exclusion=None)
 
     .. attribute:: frame_type
 
         This attribute is set to ``'ROWS'``.
 
-    .. versionchanged:: 5.1
-
-        The ``exclusion`` argument was added.
-
 Both classes return SQL with the template:
 
 .. code-block:: sql
@@ -942,8 +932,6 @@ Both classes return SQL with the template:
 
 .. class:: WindowFrameExclusion
 
-    .. versionadded:: 5.1
-
     .. attribute:: CURRENT_ROW
 
     .. attribute:: GROUP
@@ -1024,11 +1012,6 @@ released between twelve months before and twelve months after each movie:
     ...     ),
     ... )
 
-.. versionchanged:: 5.1
-
-    Support for positive integer ``start`` and negative integer ``end`` was
-    added for ``RowRange``.
-
 .. currentmodule:: django.db.models
 
 Technical Information
@@ -1059,8 +1042,6 @@ calling the appropriate methods on the wrapped expression.
 
     .. attribute:: constraint_validation_compatible
 
-        .. versionadded:: 5.1
-
         Tells Django that this expression can be used during a constraint
         validation. Expressions with ``constraint_validation_compatible`` set
         to ``False`` must have only one source expression. Defaults to
diff --git a/docs/ref/models/instances.txt b/docs/ref/models/instances.txt
index 7482b98a66..c4bf8aae5f 100644
--- a/docs/ref/models/instances.txt
+++ b/docs/ref/models/instances.txt
@@ -214,10 +214,6 @@ values::
 
     obj.refresh_from_db(from_queryset=MyModel.objects.select_for_update())
 
-.. versionchanged:: 5.1
-
-    The ``from_queryset`` argument was added.
-
 .. method:: Model.get_deferred_fields()
 
 A helper method that returns a set containing the attribute names of all those
diff --git a/docs/ref/models/querysets.txt b/docs/ref/models/querysets.txt
index ec27936cdb..8bf83838c0 100644
--- a/docs/ref/models/querysets.txt
+++ b/docs/ref/models/querysets.txt
@@ -3106,10 +3106,6 @@ adverse effects on your database. For example, the ``ANALYZE`` flag supported
 by MariaDB, MySQL 8.0.18+, and PostgreSQL could result in changes to data if
 there are triggers or if a function is called, even for a ``SELECT`` query.
 
-.. versionchanged:: 5.1
-
-    Support for the ``generic_plan`` option on PostgreSQL 16+ was added.
-
 .. versionchanged:: 5.2
 
     Support for the ``memory`` and ``serialize`` options on PostgreSQL 17+ was
diff --git a/docs/ref/templates/builtins.txt b/docs/ref/templates/builtins.txt
index 8673727861..f35935c160 100644
--- a/docs/ref/templates/builtins.txt
+++ b/docs/ref/templates/builtins.txt
@@ -957,8 +957,6 @@ output (as a string) inside a variable. This is useful if you want to use
 ``querystring``
 ----------------
 
-.. versionadded:: 5.1
-
 Outputs a URL-encoded formatted query string based on the provided parameters.
 
 This tag requires a :class:`~django.http.QueryDict` instance, which defaults to
diff --git a/docs/ref/utils.txt b/docs/ref/utils.txt
index 438a38cea0..72e7eb31c8 100644
--- a/docs/ref/utils.txt
+++ b/docs/ref/utils.txt
@@ -1179,11 +1179,6 @@ For a complete discussion on the usage of the following see the
 
     Raises :exc:`LookupError` if nothing is found.
 
-    .. versionchanged:: 4.2.15
-
-        In older versions, ``lang_code`` values over 500 characters were
-        processed without raising a :exc:`LookupError`.
-
 .. function:: to_locale(language)
 
     Turns a language name (en-us) into a locale name (en_US).
diff --git a/docs/ref/validators.txt b/docs/ref/validators.txt
index 846a3c7157..3493363420 100644
--- a/docs/ref/validators.txt
+++ b/docs/ref/validators.txt
@@ -162,8 +162,6 @@ to, or in lieu of custom ``field.clean()`` methods.
 ``DomainNameValidator``
 -----------------------
 
-.. versionadded:: 5.1
-
 .. class:: DomainNameValidator(accept_idna=True, message=None, code=None)
 
     A :class:`RegexValidator` subclass that ensures a value looks like a domain
@@ -223,8 +221,6 @@ to, or in lieu of custom ``field.clean()`` methods.
 ``validate_domain_name``
 ------------------------
 
-.. versionadded:: 5.1
-
 .. data:: validate_domain_name
 
     A :class:`DomainNameValidator` instance without any customizations.
diff --git a/docs/topics/auth/default.txt b/docs/topics/auth/default.txt
index a22cebbf15..06d7c2fc26 100644
--- a/docs/topics/auth/default.txt
+++ b/docs/topics/auth/default.txt
@@ -601,10 +601,6 @@ The ``login_required`` decorator
     :func:`django.contrib.admin.views.decorators.staff_member_required`
     decorator a useful alternative to ``login_required()``.
 
-.. versionchanged:: 5.1
-
-    Support for wrapping asynchronous view functions was added.
-
 .. currentmodule:: django.contrib.auth.mixins
 
 The ``LoginRequiredMixin`` mixin
@@ -647,8 +643,6 @@ inheritance list.
 The ``login_not_required`` decorator
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 5.1
-
 When :class:`~django.contrib.auth.middleware.LoginRequiredMiddleware` is
 installed, all views require authentication by default. Some views, such as the
 login view, may need to disable this behavior.
@@ -719,11 +713,6 @@ email in the desired domain and if not, redirects to the login page::
         @user_passes_test(email_check, login_url="/login/")
         def my_view(request): ...
 
-    .. versionchanged:: 5.1
-
-        Support for wrapping asynchronous view functions and using asynchronous
-        test callables was added.
-
 .. currentmodule:: django.contrib.auth.mixins
 
 .. class:: UserPassesTestMixin
@@ -828,10 +817,6 @@ The ``permission_required`` decorator
     ``redirect_authenticated_user=True`` and the logged-in user doesn't have
     all of the required permissions.
 
-.. versionchanged:: 5.1
-
-    Support for wrapping asynchronous view functions was added.
-
 .. currentmodule:: django.contrib.auth.mixins
 
 The ``PermissionRequiredMixin`` mixin
@@ -1640,15 +1625,8 @@ provides several built-in forms located in :mod:`django.contrib.auth.forms`:
 
     Takes the ``user`` as the first positional argument.
 
-    .. versionchanged:: 5.1
-
-        Option to disable (or reenable) password-based authentication was
-        added.
-
 .. class:: AdminUserCreationForm
 
-    .. versionadded:: 5.1.1
-
     A form used in the admin interface to create a new user. Inherits from
     :class:`UserCreationForm`.
 
diff --git a/docs/topics/checks.txt b/docs/topics/checks.txt
index 94ba66f0db..b0e8c2987f 100644
--- a/docs/topics/checks.txt
+++ b/docs/topics/checks.txt
@@ -195,10 +195,6 @@ the only difference is that the check is a classmethod, not an instance method::
             # ... your own checks ...
             return errors
 
-.. versionchanged:: 5.1
-
-    In older versions, template engines didn't implement a ``check()`` method.
-
 Writing tests
 -------------
 
diff --git a/docs/topics/http/sessions.txt b/docs/topics/http/sessions.txt
index e670292ca8..03559da3ed 100644
--- a/docs/topics/http/sessions.txt
+++ b/docs/topics/http/sessions.txt
@@ -81,10 +81,6 @@ writing to the cache fails, the exception is handled and logged via the
 :ref:`sessions logger <django-contrib-sessions-logger>`, to avoid failing an
 otherwise successful write operation.
 
-.. versionchanged:: 5.1
-
-    Handling and logging of exceptions when writing to the cache was added.
-
 Session reads use the cache, or the database if the data has been evicted from
 the cache. To use this backend, set :setting:`SESSION_ENGINE` to
 ``"django.contrib.sessions.backends.cached_db"``, and follow the configuration
@@ -202,14 +198,8 @@ You can edit it multiple times.
 
       Example: ``fav_color = request.session.get('fav_color', 'red')``
 
-      .. versionchanged:: 5.1
-
-        ``aget()`` function was added.
-
     .. method:: aset(key, value)
 
-      .. versionadded:: 5.1
-
       Example: ``await request.session.aset('fav_color', 'red')``
 
     .. method:: update(dict)
@@ -219,10 +209,6 @@ You can edit it multiple times.
 
       Example: ``request.session.update({'fav_color': 'red'})``
 
-      .. versionchanged:: 5.1
-
-        ``aupdate()`` function was added.
-
     .. method:: pop(key, default=__not_given)
     .. method:: apop(key, default=__not_given)
 
@@ -230,55 +216,31 @@ You can edit it multiple times.
 
       Example: ``fav_color = request.session.pop('fav_color', 'blue')``
 
-      .. versionchanged:: 5.1
-
-        ``apop()`` function was added.
-
     .. method:: keys()
     .. method:: akeys()
 
       *Asynchronous version*: ``akeys()``
 
-      .. versionchanged:: 5.1
-
-        ``akeys()`` function was added.
-
     .. method:: values()
     .. method:: avalues()
 
       *Asynchronous version*: ``avalues()``
 
-      .. versionchanged:: 5.1
-
-        ``avalues()`` function was added.
-
     .. method:: has_key(key)
     .. method:: ahas_key(key)
 
       *Asynchronous version*: ``ahas_key()``
 
-      .. versionchanged:: 5.1
-
-        ``ahas_key()`` function was added.
-
     .. method:: items()
     .. method:: aitems()
 
       *Asynchronous version*: ``aitems()``
 
-      .. versionchanged:: 5.1
-
-        ``aitems()`` function was added.
-
     .. method:: setdefault()
     .. method:: asetdefault()
 
       *Asynchronous version*: ``asetdefault()``
 
-      .. versionchanged:: 5.1
-
-        ``asetdefault()`` function was added.
-
     .. method:: clear()
 
     It also has these methods:
@@ -293,10 +255,6 @@ You can edit it multiple times.
       can't be accessed again from the user's browser (for example, the
       :func:`django.contrib.auth.logout()` function calls it).
 
-      .. versionchanged:: 5.1
-
-        ``aflush()`` function was added.
-
     .. method:: set_test_cookie()
     .. method:: aset_test_cookie()
 
@@ -307,10 +265,6 @@ You can edit it multiple times.
       until the user's next page request. See `Setting test cookies`_ below for
       more information.
 
-      .. versionchanged:: 5.1
-
-        ``aset_test_cookie()`` function was added.
-
     .. method:: test_cookie_worked()
     .. method:: atest_cookie_worked()
 
@@ -322,10 +276,6 @@ You can edit it multiple times.
       previous, separate page request.
       See `Setting test cookies`_ below for more information.
 
-      .. versionchanged:: 5.1
-
-        ``atest_cookie_worked()`` function was added.
-
     .. method:: delete_test_cookie()
     .. method:: adelete_test_cookie()
 
@@ -333,10 +283,6 @@ You can edit it multiple times.
 
       Deletes the test cookie. Use this to clean up after yourself.
 
-      .. versionchanged:: 5.1
-
-        ``adelete_test_cookie()`` function was added.
-
     .. method:: get_session_cookie_age()
 
       Returns the value of the setting :setting:`SESSION_COOKIE_AGE`. This can
@@ -368,10 +314,6 @@ You can edit it multiple times.
       purposes. Session expiration is computed from the last time the
       session was *modified*.
 
-      .. versionchanged:: 5.1
-
-        ``aset_expiry()`` function was added.
-
     .. method:: get_expiry_age()
     .. method:: aget_expiry_age()
 
@@ -404,10 +346,6 @@ You can edit it multiple times.
 
             expires_at = modification + timedelta(seconds=settings.SESSION_COOKIE_AGE)
 
-      .. versionchanged:: 5.1
-
-        ``aget_expiry_age()`` function was added.
-
     .. method:: get_expiry_date()
     .. method:: aget_expiry_date()
 
@@ -420,10 +358,6 @@ You can edit it multiple times.
       This function accepts the same keyword arguments as
       :meth:`get_expiry_age`, and similar notes on usage apply.
 
-      .. versionchanged:: 5.1
-
-        ``aget_expiry_date()`` function was added.
-
     .. method:: get_expire_at_browser_close()
     .. method:: aget_expire_at_browser_close()
 
@@ -432,10 +366,6 @@ You can edit it multiple times.
       Returns either ``True`` or ``False``, depending on whether the user's
       session cookie will expire when the user's web browser is closed.
 
-      .. versionchanged:: 5.1
-
-        ``aget_expire_at_browser_close()`` function was added.
-
     .. method:: clear_expired()
     .. method:: aclear_expired()
 
@@ -444,10 +374,6 @@ You can edit it multiple times.
       Removes expired sessions from the session store. This class method is
       called by :djadmin:`clearsessions`.
 
-      .. versionchanged:: 5.1
-
-        ``aclear_expired()`` function was added.
-
     .. method:: cycle_key()
     .. method:: acycle_key()
 
@@ -457,10 +383,6 @@ You can edit it multiple times.
       :func:`django.contrib.auth.login()` calls this method to mitigate against
       session fixation.
 
-      .. versionchanged:: 5.1
-
-        ``acycle_key()`` function was added.
-
 .. _session_serialization:
 
 Session serialization
@@ -616,10 +538,6 @@ Here's a typical usage example::
         request.session.set_test_cookie()
         return render(request, "foo/login_form.html")
 
-.. versionchanged:: 5.1
-
-    Support for setting test cookies in asynchronous view functions was added.
-
 Using sessions out of views
 ===========================
 
@@ -868,11 +786,6 @@ You can extend the session engines, but doing so with database-backed session
 engines generally requires some extra effort (see the next section for
 details).
 
-.. versionchanged:: 5.1
-
-    ``aexists()``, ``acreate()``, ``asave()``, ``adelete()``, ``aload()``, and
-    ``aclear_expired()`` methods were added.
-
 .. _extending-database-backed-session-engines:
 
 Extending database-backed session engines
diff --git a/docs/topics/testing/advanced.txt b/docs/topics/testing/advanced.txt
index 6b03f0f82b..1b0c172ef9 100644
--- a/docs/topics/testing/advanced.txt
+++ b/docs/topics/testing/advanced.txt
@@ -32,10 +32,6 @@ restricted subset of the test client API:
   attributes must be supplied by the test itself if required
   for the view to function properly.
 
-.. versionchanged:: 5.1
-
-    The ``query_params`` parameter was added.
-
 Example
 -------
 
@@ -89,10 +85,6 @@ difference being that it returns ``ASGIRequest`` instances rather than
 Arbitrary keyword arguments in ``defaults`` are added directly into the ASGI
 scope.
 
-.. versionchanged:: 5.1
-
-    The ``query_params`` parameter was added.
-
 Testing class-based views
 =========================
 
diff --git a/docs/topics/testing/tools.txt b/docs/topics/testing/tools.txt
index dba2a9cce8..a03ad7da78 100644
--- a/docs/topics/testing/tools.txt
+++ b/docs/topics/testing/tools.txt
@@ -158,10 +158,6 @@ Use the ``django.test.Client`` class to make requests.
     The ``json_encoder`` argument allows setting a custom JSON encoder for
     the JSON serialization that's described in :meth:`post`.
 
-    .. versionchanged:: 5.1
-
-        The ``query_params`` argument was added.
-
     Once you have a ``Client`` instance, you can call any of the following
     methods:
 
@@ -241,10 +237,6 @@ Use the ``django.test.Client`` class to make requests.
         If you set ``secure`` to ``True`` the client will emulate an HTTPS
         request.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.post(path, data=None, content_type=MULTIPART_CONTENT, follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a POST request on the provided ``path`` and returns a
@@ -360,10 +352,6 @@ Use the ``django.test.Client`` class to make requests.
         If you set ``secure`` to ``True`` the client will emulate an HTTPS
         request.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.head(path, data=None, follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a HEAD request on the provided ``path`` and returns a
@@ -371,10 +359,6 @@ Use the ``django.test.Client`` class to make requests.
         including the ``follow``, ``secure``, ``headers``, ``query_params``,
         and ``extra`` parameters, except it does not return a message body.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.options(path, data='', content_type='application/octet-stream', follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes an OPTIONS request on the provided ``path`` and returns a
@@ -386,10 +370,6 @@ Use the ``django.test.Client`` class to make requests.
         The ``follow``, ``secure``, ``headers``, ``query_params``, and
         ``extra`` parameters act the same as for :meth:`Client.get`.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.put(path, data='', content_type='application/octet-stream', follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a PUT request on the provided ``path`` and returns a
@@ -401,10 +381,6 @@ Use the ``django.test.Client`` class to make requests.
         The ``follow``, ``secure``, ``headers``, ``query_params``, and
         ``extra`` parameters act the same as for :meth:`Client.get`.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.patch(path, data='', content_type='application/octet-stream', follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a PATCH request on the provided ``path`` and returns a
@@ -413,10 +389,6 @@ Use the ``django.test.Client`` class to make requests.
         The ``follow``, ``secure``, ``headers``, ``query_params``, and
         ``extra`` parameters act the same as for :meth:`Client.get`.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.delete(path, data='', content_type='application/octet-stream', follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a DELETE request on the provided ``path`` and returns a
@@ -428,10 +400,6 @@ Use the ``django.test.Client`` class to make requests.
         The ``follow``, ``secure``, ``headers``, ``query_params``, and
         ``extra`` parameters act the same as for :meth:`Client.get`.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.trace(path, follow=False, secure=False, *, headers=None, query_params=None, **extra)
 
         Makes a TRACE request on the provided ``path`` and returns a
@@ -444,10 +412,6 @@ Use the ``django.test.Client`` class to make requests.
         The ``follow``, ``secure``, ``headers``, ``query_params``, and
         ``extra`` parameters act the same as for :meth:`Client.get`.
 
-        .. versionchanged:: 5.1
-
-            The ``query_params`` argument was added.
-
     .. method:: Client.login(**credentials)
     .. method:: Client.alogin(**credentials)
 
@@ -1548,11 +1512,6 @@ LOCALE_PATHS, LANGUAGE_CODE       Default translation and loaded translations
 STATIC_ROOT, STATIC_URL, STORAGES Storages configuration
 ================================= ========================
 
-.. versionchanged:: 5.1
-
-    Resetting the default renderer when the ``FORM_RENDERER`` setting is
-    changed was added.
-
 Isolating apps
 --------------
 
@@ -1740,10 +1699,6 @@ your test suite.
     attribute ordering is not significant. See
     :meth:`~SimpleTestCase.assertHTMLEqual` for more details.
 
-    .. versionchanged:: 5.1
-
-        In older versions, error messages didn't contain the response content.
-
 .. method:: SimpleTestCase.assertNotContains(response, text, status_code=200, msg_prefix='', html=False)
 
     Asserts that a :class:`response <django.http.HttpResponse>` produced the
@@ -1756,10 +1711,6 @@ your test suite.
     attribute ordering is not significant. See
     :meth:`~SimpleTestCase.assertHTMLEqual` for more details.
 
-    .. versionchanged:: 5.1
-
-        In older versions, error messages didn't contain the response content.
-
 .. method:: SimpleTestCase.assertTemplateUsed(response, template_name, msg_prefix='', count=None)
 
     Asserts that the template with the given name was used in rendering the
@@ -1896,14 +1847,8 @@ your test suite.
     Whitespace in most cases is ignored, and attribute ordering is not
     significant. See :meth:`~SimpleTestCase.assertHTMLEqual` for more details.
 
-    .. versionchanged:: 5.1
-
-        In older versions, error messages didn't contain the ``haystack``.
-
 .. method:: SimpleTestCase.assertNotInHTML(needle, haystack, msg_prefix="")
 
-    .. versionadded:: 5.1
-
     Asserts that the HTML fragment ``needle`` is *not* contained in the
     ``haystack``.
 
@@ -2058,10 +2003,6 @@ test client, with the following exceptions:
     >>> c = AsyncClient()
     >>> c.get("/customers/details/", {"name": "fred", "age": 7}, ACCEPT="application/json")
 
-.. versionchanged:: 5.1
-
-    The ``query_params`` argument was added.
-
 Using ``AsyncClient`` any method that makes a request must be awaited::
 
     async def test_my_thing(self):