Removed versionadded/changed annotations for 3.1.

45 files changed, 0 insertions, 392 deletions

diff --git a/docs/howto/custom-management-commands.txt b/docs/howto/custom-management-commands.txt
index 56db507689..5d1a8ddd2d 100644
--- a/docs/howto/custom-management-commands.txt
+++ b/docs/howto/custom-management-commands.txt
@@ -364,7 +364,3 @@ the management command to exit with, using :func:`sys.exit`.
 If a management command is called from code through
 :func:`~django.core.management.call_command`, it's up to you to catch the
 exception when needed.
-
-.. versionchanged:: 3.1
-
-    The ``returncode`` argument was added.
diff --git a/docs/howto/error-reporting.txt b/docs/howto/error-reporting.txt
index e2dbe7ca27..1122f47b1b 100644
--- a/docs/howto/error-reporting.txt
+++ b/docs/howto/error-reporting.txt
@@ -269,16 +269,12 @@ following attributes and methods:
 
     .. attribute:: cleansed_substitute
 
-        .. versionadded:: 3.1
-
         The string value to replace sensitive value with. By default it
         replaces the values of sensitive variables with stars
         (``**********``).
 
     .. attribute:: hidden_settings
 
-        .. versionadded:: 3.1
-
         A compiled regular expression object used to match settings and
         ``request.META`` values considered as sensitive. By default equivalent
         to::
@@ -307,8 +303,6 @@ following attributes and methods:
         traceback frame. Sensitive values are replaced with
         :attr:`cleansed_substitute`.
 
-.. versionadded:: 3.1
-
 If you need to customize error reports beyond filtering you may specify a
 custom error reporter class by defining the
 :setting:`DEFAULT_EXCEPTION_REPORTER` setting::
diff --git a/docs/ref/checks.txt b/docs/ref/checks.txt
index b07a81f413..48ffb8c816 100644
--- a/docs/ref/checks.txt
+++ b/docs/ref/checks.txt
@@ -93,15 +93,6 @@ Django's system checks are organized using the following tags:
 
 Some checks may be registered with multiple tags.
 
-.. versionchanged:: 3.1
-
-    The ``async_support`` tag was added.
-
-.. versionchanged:: 3.1
-
-    The ``database`` checks are now run only for database aliases specified
-    using the :option:`check --database` option.
-
 .. versionchanged:: 3.2
 
     The ``sites`` tag was added.
@@ -112,8 +103,6 @@ Core system checks
 Asynchronous support
 --------------------
 
-.. versionadded:: 3.1
-
 The following checks verify your setup for :doc:`/topics/async`:
 
 * **async.E001**: You should not set the :envvar:`DJANGO_ALLOW_ASYNC_UNSAFE`
diff --git a/docs/ref/contrib/admin/index.txt b/docs/ref/contrib/admin/index.txt
index c6135ca5cb..0a42199c34 100644
--- a/docs/ref/contrib/admin/index.txt
+++ b/docs/ref/contrib/admin/index.txt
@@ -40,12 +40,6 @@ If you're not using the default project template, here are the requirements:
    the ``'context_processors'`` option of :setting:`OPTIONS
    <TEMPLATES-OPTIONS>`.
 
-   .. versionchanged:: 3.1
-
-       ``django.template.context_processors.request`` was added as a
-       requirement in the ``'context_processors'`` option to support the new
-       :attr:`.AdminSite.enable_nav_sidebar`.
-
 #. If you've customized the :setting:`MIDDLEWARE` setting,
    :class:`django.contrib.auth.middleware.AuthenticationMiddleware` and
    :class:`django.contrib.messages.middleware.MessageMiddleware` must be
@@ -1042,10 +1036,6 @@ subclass::
         The :class:`~django.contrib.contenttypes.fields.GenericForeignKey`
         field is not supported.
 
-      .. versionadded:: 3.1
-
-          The ``EmptyFieldListFilter`` class was added.
-
     List filter's typically appear only if the filter has more than one choice.
     A filter's ``has_output()`` method controls whether or not it appears.
 
@@ -2230,10 +2220,6 @@ To avoid conflicts with user-supplied scripts or libraries, Django's jQuery
 in your own admin JavaScript without including a second copy, you can use the
 ``django.jQuery`` object on changelist and add/edit views.
 
-.. versionchanged:: 3.1
-
-    jQuery was upgraded from 3.4.1 to 3.5.1.
-
 The :class:`ModelAdmin` class requires jQuery by default, so there is no need
 to add jQuery to your ``ModelAdmin``’s list of media resources unless you have
 a specific need. For example, if you require the jQuery library to be in the
@@ -2953,8 +2939,6 @@ Templates can override or extend base admin templates as described in
 
 .. attribute:: AdminSite.enable_nav_sidebar
 
-    .. versionadded:: 3.1
-
     A boolean value that determines whether to show the navigation sidebar
     on larger screens. By default, it is set to ``True``.
 
diff --git a/docs/ref/contrib/auth.txt b/docs/ref/contrib/auth.txt
index de2a2321ba..6bcdf5e099 100644
--- a/docs/ref/contrib/auth.txt
+++ b/docs/ref/contrib/auth.txt
@@ -40,10 +40,6 @@ Fields
         Optional (:attr:`blank=True <django.db.models.Field.blank>`). 150
         characters or fewer.
 
-        .. versionchanged:: 3.1
-
-            The ``max_length`` increased from 30 to 150 characters.
-
     .. attribute:: last_name
 
         Optional (:attr:`blank=True <django.db.models.Field.blank>`). 150
diff --git a/docs/ref/contrib/gis/functions.txt b/docs/ref/contrib/gis/functions.txt
index 351429b49e..9f7043c2b0 100644
--- a/docs/ref/contrib/gis/functions.txt
+++ b/docs/ref/contrib/gis/functions.txt
@@ -83,10 +83,6 @@ Keyword Argument       Description
                        Oracle.
 =====================  =====================================================
 
-.. versionchanged:: 3.1
-
-    Oracle support was added.
-
 ``AsGML``
 =========
 
@@ -144,10 +140,6 @@ Keyword Argument       Description
 
 __ https://developers.google.com/kml/documentation/
 
-.. versionchanged:: 3.1
-
-    The undocumented ``version`` parameter was removed.
-
 ``AsSVG``
 =========
 
@@ -177,8 +169,6 @@ __ https://www.w3.org/Graphics/SVG/
 
 .. class:: AsWKB(expression, **extra)
 
-.. versionadded:: 3.1
-
 *Availability*: MariaDB, `MySQL
 <https://dev.mysql.com/doc/refman/en/gis-format-conversion-functions.html#function_st-asbinary>`__,
 Oracle, `PostGIS <https://postgis.net/docs/ST_AsBinary.html>`__, SpatiaLite
@@ -198,8 +188,6 @@ __ https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry#Well
 
 .. class:: AsWKT(expression, **extra)
 
-.. versionadded:: 3.1
-
 *Availability*: MariaDB, `MySQL
 <https://dev.mysql.com/doc/refman/en/gis-format-conversion-functions.html#function_st-astext>`__,
 Oracle, `PostGIS <https://postgis.net/docs/ST_AsText.html>`__, SpatiaLite
diff --git a/docs/ref/contrib/gis/geoquerysets.txt b/docs/ref/contrib/gis/geoquerysets.txt
index dfda2fa3b7..9a8bb3f29f 100644
--- a/docs/ref/contrib/gis/geoquerysets.txt
+++ b/docs/ref/contrib/gis/geoquerysets.txt
@@ -439,10 +439,6 @@ PostGIS SQL equivalent:
     SELECT ... WHERE ST_Relate(poly, ST_Polygon(rast, 1), 'T*T***FF*')
     SELECT ... WHERE ST_Relate(ST_Polygon(rast, 2), ST_Polygon(rast, 1), 'T*T***FF*')
 
-.. versionchanged:: 3.1
-
-    MariaDB support was added.
-
 Oracle
 ~~~~~~
 
diff --git a/docs/ref/contrib/gis/geos.txt b/docs/ref/contrib/gis/geos.txt
index 446fb38108..e2713439fc 100644
--- a/docs/ref/contrib/gis/geos.txt
+++ b/docs/ref/contrib/gis/geos.txt
@@ -729,8 +729,6 @@ Other Properties & Methods
 
     .. attribute:: is_counterclockwise
 
-        .. versionadded:: 3.1
-
         Returns whether this ``LinearRing`` is counterclockwise.
 
 ``Polygon``
diff --git a/docs/ref/contrib/humanize.txt b/docs/ref/contrib/humanize.txt
index 00718582f5..7c1af53ed3 100644
--- a/docs/ref/contrib/humanize.txt
+++ b/docs/ref/contrib/humanize.txt
@@ -78,10 +78,6 @@ e.g. with the ``'de'`` language:
 * ``1200000000`` becomes ``'1,2 Milliarden'``.
 * ``-1200000000`` becomes ``'-1,2 Milliarden'``.
 
-.. versionchanged:: 3.1
-
-    Support for negative integers was added.
-
 .. templatefilter:: naturalday
 
 ``naturalday``
diff --git a/docs/ref/contrib/postgres/constraints.txt b/docs/ref/contrib/postgres/constraints.txt
index 25e6ae5ae0..7907eaefdf 100644
--- a/docs/ref/contrib/postgres/constraints.txt
+++ b/docs/ref/contrib/postgres/constraints.txt
@@ -79,8 +79,6 @@ These conditions have the same database restrictions as
 
 .. attribute:: ExclusionConstraint.deferrable
 
-.. versionadded:: 3.1
-
 Set this parameter to create a deferrable exclusion constraint. Accepted values
 are ``Deferrable.DEFERRED`` or ``Deferrable.IMMEDIATE``. For example::
 
diff --git a/docs/ref/contrib/postgres/fields.txt b/docs/ref/contrib/postgres/fields.txt
index df9ebc48d6..eee99592b3 100644
--- a/docs/ref/contrib/postgres/fields.txt
+++ b/docs/ref/contrib/postgres/fields.txt
@@ -686,14 +686,6 @@ The ``contained_by`` lookup is also available on the non-range field types:
     ... )
     <QuerySet [<Event: Soft play>]>
 
-.. versionchanged:: 3.1
-
-    Support for :class:`~django.db.models.SmallAutoField`,
-    :class:`~django.db.models.AutoField`,
-    :class:`~django.db.models.BigAutoField`,
-    :class:`~django.db.models.SmallIntegerField`, and
-    :class:`~django.db.models.DecimalField` was added.
-
 .. fieldlookup:: rangefield.overlap
 
 ``overlap``
@@ -813,8 +805,6 @@ Returned objects are empty ranges. Can be chained to valid lookups for a
 ``lower_inc``
 ^^^^^^^^^^^^^
 
-.. versionadded:: 3.1
-
 Returns objects that have inclusive or exclusive lower bounds, depending on the
 boolean value passed. Can be chained to valid lookups for a
 :class:`~django.db.models.BooleanField`.
@@ -827,8 +817,6 @@ boolean value passed. Can be chained to valid lookups for a
 ``lower_inf``
 ^^^^^^^^^^^^^
 
-.. versionadded:: 3.1
-
 Returns objects that have unbounded (infinite) or bounded lower bound,
 depending on the boolean value passed. Can be chained to valid lookups for a
 :class:`~django.db.models.BooleanField`.
@@ -841,8 +829,6 @@ depending on the boolean value passed. Can be chained to valid lookups for a
 ``upper_inc``
 ^^^^^^^^^^^^^
 
-.. versionadded:: 3.1
-
 Returns objects that have inclusive or exclusive upper bounds, depending on the
 boolean value passed. Can be chained to valid lookups for a
 :class:`~django.db.models.BooleanField`.
@@ -855,8 +841,6 @@ boolean value passed. Can be chained to valid lookups for a
 ``upper_inf``
 ^^^^^^^^^^^^^
 
-.. versionadded:: 3.1
-
 Returns objects that have unbounded (infinite) or bounded upper bound,
 depending on the boolean value passed. Can be chained to valid lookups for a
 :class:`~django.db.models.BooleanField`.
diff --git a/docs/ref/contrib/postgres/indexes.txt b/docs/ref/contrib/postgres/indexes.txt
index 4a9b2ad22e..746e26330e 100644
--- a/docs/ref/contrib/postgres/indexes.txt
+++ b/docs/ref/contrib/postgres/indexes.txt
@@ -12,8 +12,6 @@ available from the ``django.contrib.postgres.indexes`` module.
 
 .. class:: BloomIndex(*expressions, length=None, columns=(), **options)
 
-    .. versionadded:: 3.1
-
     Creates a bloom_ index.
 
     To use this index access you need to activate the bloom_ extension on
diff --git a/docs/ref/contrib/postgres/operations.txt b/docs/ref/contrib/postgres/operations.txt
index ff37728d27..8491ac2f52 100644
--- a/docs/ref/contrib/postgres/operations.txt
+++ b/docs/ref/contrib/postgres/operations.txt
@@ -61,8 +61,6 @@ them. In that case, connect to your Django database and run the query
 
 .. class:: BloomExtension()
 
-    .. versionadded:: 3.1
-
     Installs the ``bloom`` extension.
 
 ``BtreeGinExtension``
diff --git a/docs/ref/contrib/postgres/search.txt b/docs/ref/contrib/postgres/search.txt
index f00bddbee4..fe4e86f05e 100644
--- a/docs/ref/contrib/postgres/search.txt
+++ b/docs/ref/contrib/postgres/search.txt
@@ -35,10 +35,6 @@ query and the vector.
 To use the ``search`` lookup, ``'django.contrib.postgres'`` must be in your
 :setting:`INSTALLED_APPS`.
 
-.. versionchanged:: 3.1
-
-    Support for query expressions was added.
-
 ``SearchVector``
 ================
 
@@ -110,11 +106,6 @@ Examples:
 See :ref:`postgresql-fts-search-configuration` for an explanation of the
 ``config`` parameter.
 
-.. versionchanged:: 3.1
-
-    Support for ``'websearch'`` search type and query expressions in
-    ``SearchQuery.value`` were added.
-
 ``SearchRank``
 ==============
 
@@ -159,15 +150,9 @@ normalization options`_.
 
 .. _different rank normalization options: https://www.postgresql.org/docs/current/textsearch-controls.html#TEXTSEARCH-RANKING
 
-.. versionadded:: 3.1
-
-    The ``normalization`` and ``cover_density`` parameters were added.
-
 ``SearchHeadline``
 ==================
 
-.. versionadded:: 3.1
-
 .. class:: SearchHeadline(expression, query, config=None, start_sel=None, stop_sel=None, max_words=None, min_words=None, short_word=None, highlight_all=None, max_fragments=None, fragment_delimiter=None)
 
 Accepts a single text field or an expression, a query, a config, and a set of
diff --git a/docs/ref/django-admin.txt b/docs/ref/django-admin.txt
index c916ff96c8..b7f6e175be 100644
--- a/docs/ref/django-admin.txt
+++ b/docs/ref/django-admin.txt
@@ -106,8 +106,6 @@ For example, to perform only models and compatibility checks, run::
 
 .. django-admin-option:: --database DATABASE
 
-.. versionadded:: 3.1
-
 Specifies the database to run checks requiring database access::
 
     django-admin check --database default --database other
@@ -226,8 +224,6 @@ Specifies the database onto which to open a shell. Defaults to ``default``.
 
 .. django-admin-option:: -- ARGUMENTS
 
-.. versionadded:: 3.1
-
 Any arguments following a ``--`` divider will be passed on to the underlying
 command-line client. For example, with PostgreSQL you can use the ``psql``
 command's ``-c`` flag to execute a raw SQL query directly:
@@ -914,8 +910,6 @@ content types.
 
 .. django-admin-option:: --check
 
-.. versionadded:: 3.1
-
 Makes ``migrate`` exit with a non-zero status when unapplied migrations are
 detected.
 
@@ -1519,8 +1513,6 @@ installed, ``ipdb`` is used instead.
 
 .. django-admin-option:: --buffer, -b
 
-.. versionadded:: 3.1
-
 Discards output (``stdout`` and ``stderr``) for passing tests, in the same way
 as :option:`unittest's --buffer option<unittest.-b>`.
 
@@ -1709,8 +1701,6 @@ Specifies the database to use. Defaults to ``default``.
 
 .. django-admin-option:: --include-stale-apps
 
-.. versionadded:: 3.1
-
 Deletes stale content types including ones from previously installed apps that
 have been removed from :setting:`INSTALLED_APPS`. Defaults to ``False``.
 
diff --git a/docs/ref/files/storage.txt b/docs/ref/files/storage.txt
index bd595f36b9..8cae580767 100644
--- a/docs/ref/files/storage.txt
+++ b/docs/ref/files/storage.txt
@@ -69,11 +69,6 @@ The ``FileSystemStorage`` class
         time of the last metadata change, and on others (like Windows), it's
         the creation time of the file.
 
-.. versionchanged:: 3.1
-
-    Support for :class:`pathlib.Path` was added to the
-    ``FileSystemStorage.save()`` method.
-
 The ``Storage`` class
 =====================
 
diff --git a/docs/ref/forms/api.txt b/docs/ref/forms/api.txt
index 8bf8f3c9c1..5df969232a 100644
--- a/docs/ref/forms/api.txt
+++ b/docs/ref/forms/api.txt
@@ -974,8 +974,6 @@ Attributes of ``BoundField``
 
 .. attribute:: BoundField.widget_type
 
-    .. versionadded:: 3.1
-
     Returns the lowercased class name of the wrapped field's widget, with any
     trailing ``input`` or ``widget`` removed. This may be used when building
     forms where the layout is dependent upon the widget type. For example::
diff --git a/docs/ref/forms/fields.txt b/docs/ref/forms/fields.txt
index 9438214a28..52ab59e626 100644
--- a/docs/ref/forms/fields.txt
+++ b/docs/ref/forms/fields.txt
@@ -514,14 +514,6 @@ For each field, we describe the default widget used if you don't specify
     ``DATE_INPUT_FORMATS`` keys if localization is enabled. See also
     :doc:`format localization </topics/i18n/formatting>`.
 
-    .. versionchanged:: 3.1
-
-        Support for ISO 8601 date string parsing (including optional timezone)
-        was added.
-
-        The fallback on ``DATE_INPUT_FORMATS`` in the default ``input_formats``
-        was added.
-
 ``DecimalField``
 ----------------
 
@@ -782,8 +774,6 @@ For each field, we describe the default widget used if you don't specify
 
 .. class:: JSONField(encoder=None, decoder=None, **kwargs)
 
-    .. versionadded:: 3.1
-
     A field which accepts JSON encoded data for a
     :class:`~django.db.models.JSONField`.
 
@@ -1450,21 +1440,11 @@ customize the yielded 2-tuple choices.
         :attr:`ChoiceField.choices`. The first ``value`` element is a
         :class:`ModelChoiceIteratorValue` instance.
 
-        .. versionchanged:: 3.1
-
-            In older versions, the first ``value`` element in the choice tuple
-            is the ``field`` value itself, rather than a
-            ``ModelChoiceIteratorValue`` instance. In most cases this proxies
-            transparently but, if you need the ``field`` value itself, use the
-            :attr:`ModelChoiceIteratorValue.value` attribute instead.
-
 ``ModelChoiceIteratorValue``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. class:: ModelChoiceIteratorValue(value, instance)
 
-    .. versionadded:: 3.1
-
     Two arguments are required:
 
     .. attribute:: value
diff --git a/docs/ref/forms/widgets.txt b/docs/ref/forms/widgets.txt
index 9a19ab1436..dbcc9175d0 100644
--- a/docs/ref/forms/widgets.txt
+++ b/docs/ref/forms/widgets.txt
@@ -336,11 +336,6 @@ foundation for custom widgets.
         a hidden ``textarea`` element may want to always return ``False`` to
         avoid browser validation on the hidden field.
 
-        .. versionchanged:: 3.1
-
-            In older versions, ``True`` was returned for
-            :class:`~django.forms.FileInput` when ``initial`` was set.
-
 ``MultiWidget``
 ---------------
 
@@ -372,10 +367,6 @@ foundation for custom widgets.
             >>> widget.render('name', ['john', 'paul'])
             '<input type="text" name="name" value="john"><input type="text" name="name_last" value="paul">'
 
-        .. versionchanged::3.1
-
-            Support for using a dictionary was added.
-
     And one required method:
 
     .. method:: decompress(value)
diff --git a/docs/ref/models/constraints.txt b/docs/ref/models/constraints.txt
index 1536a8692a..e3b682d1c5 100644
--- a/docs/ref/models/constraints.txt
+++ b/docs/ref/models/constraints.txt
@@ -58,10 +58,6 @@ specifies the check you want the constraint to enforce.
 For example, ``CheckConstraint(check=Q(age__gte=18), name='age_gte_18')``
 ensures the age field is never less than 18.
 
-.. versionchanged:: 3.1
-
-    Support for boolean :class:`~django.db.models.Expression` was added.
-
 ``name``
 --------
 
@@ -119,8 +115,6 @@ These conditions have the same database restrictions as
 
 .. attribute:: UniqueConstraint.deferrable
 
-.. versionadded:: 3.1
-
 Set this parameter to create a deferrable unique constraint. Accepted values
 are ``Deferrable.DEFERRED`` or ``Deferrable.IMMEDIATE``. For example::
 
diff --git a/docs/ref/models/database-functions.txt b/docs/ref/models/database-functions.txt
index 948ce4e3cc..b63b4cff4a 100644
--- a/docs/ref/models/database-functions.txt
+++ b/docs/ref/models/database-functions.txt
@@ -336,8 +336,6 @@ Usage example::
 
 .. class:: ExtractIsoWeekDay(expression, tzinfo=None, **extra)
 
-    .. versionadded:: 3.1
-
     Returns the ISO-8601 week day with day 1 being Monday and day 7 being
     Sunday.
 
diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt
index a315402347..3409d2d023 100644
--- a/docs/ref/models/fields.txt
+++ b/docs/ref/models/fields.txt
@@ -842,10 +842,6 @@ Has two optional arguments:
     handles the storage and retrieval of your files. See :doc:`/topics/files`
     for details on how to provide this object.
 
-    .. versionchanged:: 3.1
-
-        The ability to provide a callable was added.
-
 The default form widget for this field is a
 :class:`~django.forms.ClearableFileInput`.
 
@@ -1198,8 +1194,6 @@ values are stored as null.
 
 .. class:: JSONField(encoder=None, decoder=None, **options)
 
-.. versionadded:: 3.1
-
 A field for storing JSON encoded data. In Python the data is represented in its
 Python native format: dictionaries, lists, strings, numbers, booleans and
 ``None``.
@@ -1276,8 +1270,6 @@ Like :class:`BooleanField` with ``null=True``.
 
 .. class:: PositiveBigIntegerField(**options)
 
-.. versionadded:: 3.1
-
 Like a :class:`PositiveIntegerField`, but only allows values under a certain
 (database-dependent) point. Values from ``0`` to ``9223372036854775807`` are
 safe in all databases supported by Django.
@@ -1579,8 +1571,6 @@ The possible values for :attr:`~ForeignKey.on_delete` are found in
 
 * .. attribute:: RESTRICT
 
-    .. versionadded:: 3.1
-
     Prevent deletion of the referenced object by raising
     :exc:`~django.db.models.RestrictedError` (a subclass of
     :exc:`django.db.IntegrityError`). Unlike :attr:`PROTECT`, deletion of the
diff --git a/docs/ref/models/instances.txt b/docs/ref/models/instances.txt
index 4222979972..7586159061 100644
--- a/docs/ref/models/instances.txt
+++ b/docs/ref/models/instances.txt
@@ -803,11 +803,6 @@ For example::
     >>> p.get_shirt_size_display()
     'Large'
 
-.. versionchanged:: 3.1
-
-    Support for :class:`~django.contrib.postgres.fields.ArrayField` and
-    :class:`~django.contrib.postgres.fields.RangeField` was added.
-
 .. method:: Model.get_next_by_FOO(**kwargs)
 .. method:: Model.get_previous_by_FOO(**kwargs)
 
diff --git a/docs/ref/models/querysets.txt b/docs/ref/models/querysets.txt
index 656bf537ad..eca0caf6d6 100644
--- a/docs/ref/models/querysets.txt
+++ b/docs/ref/models/querysets.txt
@@ -834,10 +834,6 @@ object. If it's ``None``, Django uses the :ref:`current time zone
 ambiguous datetimes in daylight saving time. By default (when ``is_dst=None``),
 ``pytz`` raises an exception for such datetimes.
 
-.. versionadded:: 3.1
-
-    The ``is_dst`` parameter was added.
-
 .. _database-time-zone-definitions:
 
 .. note::
@@ -2216,10 +2212,6 @@ normally supports it).
 
 Returns ``objs`` as cast to a list, in the same order as provided.
 
-.. versionchanged:: 3.1
-
-    Support for the fetching primary key attributes on MariaDB 10.5+ was added.
-
 ``bulk_update()``
 ~~~~~~~~~~~~~~~~~
 
@@ -2742,11 +2734,6 @@ 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:: 3.1
-
-    Support for the ``'TREE'`` format on MySQL 8.0.16+ and ``analyze`` option
-    on MariaDB and MySQL 8.0.18+ were added.
-
 .. _field-lookups:
 
 ``Field`` lookups
@@ -3273,8 +3260,6 @@ in the database <database-time-zone-definitions>`.
 ``iso_week_day``
 ~~~~~~~~~~~~~~~~
 
-.. versionadded:: 3.1
-
 For date and datetime fields, an exact ISO 8601 day of the week match. Allows
 chaining additional field lookups.
 
diff --git a/docs/ref/models/relations.txt b/docs/ref/models/relations.txt
index 1e81352c69..1c2591cc0c 100644
--- a/docs/ref/models/relations.txt
+++ b/docs/ref/models/relations.txt
@@ -75,10 +75,6 @@ Related objects reference
         dictionary and they will be evaluated once before creating any
         intermediate instance(s).
 
-        .. versionchanged:: 3.1
-
-            ``through_defaults`` values can now be callables.
-
     .. method:: create(through_defaults=None, **kwargs)
 
         Creates a new object, saves it and puts it in the related object set.
@@ -114,10 +110,6 @@ Related objects reference
         needed. You can use callables as values in the ``through_defaults``
         dictionary.
 
-        .. versionchanged:: 3.1
-
-            ``through_defaults`` values can now be callables.
-
     .. method:: remove(*objs, bulk=True)
 
         Removes the specified model objects from the related object set::
@@ -208,10 +200,6 @@ Related objects reference
         dictionary and they will be evaluated once before creating any
         intermediate instance(s).
 
-        .. versionchanged:: 3.1
-
-            ``through_defaults`` values can now be callables.
-
     .. note::
 
        Note that ``add()``, ``create()``, ``remove()``, ``clear()``, and
diff --git a/docs/ref/paginator.txt b/docs/ref/paginator.txt
index 4cc5483828..7758234d6e 100644
--- a/docs/ref/paginator.txt
+++ b/docs/ref/paginator.txt
@@ -17,10 +17,6 @@ classes live in :source:`django/core/paginator.py`.
     A paginator acts like a sequence of :class:`Page` when using ``len()`` or
     iterating it directly.
 
-    .. versionchanged:: 3.1
-
-        Support for iterating over ``Paginator`` was added.
-
 .. attribute:: Paginator.object_list
 
     Required. A list, tuple, ``QuerySet``, or other sliceable object with a
diff --git a/docs/ref/request-response.txt b/docs/ref/request-response.txt
index 4528373b8c..819272bd6e 100644
--- a/docs/ref/request-response.txt
+++ b/docs/ref/request-response.txt
@@ -406,8 +406,6 @@ Methods
 
 .. method:: HttpRequest.accepts(mime_type)
 
-    .. versionadded:: 3.1
-
     Returns ``True`` if the request ``Accept`` header matches the ``mime_type``
     argument::
 
@@ -911,10 +909,6 @@ Methods
     .. _HttpOnly: https://owasp.org/www-community/HttpOnly
     .. _SameSite: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
 
-    .. versionchanged:: 3.1
-
-        Using ``samesite='None'`` (string) was allowed.
-
     .. warning::
 
         :rfc:`RFC 6265 <6265#section-6.1>` states that user agents should
@@ -932,10 +926,6 @@ Methods
     you will need to remember to pass it to the corresponding
     :meth:`HttpRequest.get_signed_cookie` call.
 
-    .. versionchanged:: 3.1
-
-        Using ``samesite='None'`` (string) was allowed.
-
 .. method:: HttpResponse.delete_cookie(key, path='/', domain=None, samesite=None)
 
     Deletes the cookie with the given key. Fails silently if the key doesn't
@@ -945,10 +935,6 @@ Methods
     values you used in ``set_cookie()`` -- otherwise the cookie may not be
     deleted.
 
-    .. versionchanged:: 2.2.15
-
-        The ``samesite`` argument was added.
-
 .. method:: HttpResponse.close()
 
     This method is called at the end of the request directly by the WSGI
diff --git a/docs/ref/settings.txt b/docs/ref/settings.txt
index 5fdb76b2d0..55773d5c9b 100644
--- a/docs/ref/settings.txt
+++ b/docs/ref/settings.txt
@@ -99,11 +99,6 @@ This validation only applies via :meth:`~django.http.HttpRequest.get_host()`;
 if your code accesses the ``Host`` header directly from ``request.META`` you
 are bypassing this security protection.
 
-.. versionchanged:: 3.1
-
-    If ``ALLOWED_HOSTS`` is empty and ``DEBUG=True``, subdomains of localhost
-    were allowed.
-
 .. setting:: APPEND_SLASH
 
 ``APPEND_SLASH``
@@ -387,10 +382,6 @@ cookie from being sent in cross-site requests.
 
 See :setting:`SESSION_COOKIE_SAMESITE` for details about ``SameSite``.
 
-.. versionchanged:: 3.1
-
-    Setting ``CSRF_COOKIE_SAMESITE = 'None'`` was allowed.
-
 .. setting:: CSRF_COOKIE_SECURE
 
 ``CSRF_COOKIE_SECURE``
@@ -688,10 +679,6 @@ When :setting:`USE_TZ` is ``False``, it is an error to set this option.
   Consider converting to local time explicitly with ``AT TIME ZONE`` in raw SQL
   queries instead of setting the ``TIME_ZONE`` option.
 
-.. versionchanged:: 3.1
-
-  Using this option when the database backend supports time zones was allowed.
-
 .. setting:: DATABASE-DISABLE_SERVER_SIDE_CURSORS
 
 ``DISABLE_SERVER_SIDE_CURSORS``
@@ -786,8 +773,6 @@ on :ref:`controlling the creation order of test databases
 ``MIGRATE``
 ^^^^^^^^^^^
 
-.. versionadded:: 3.1
-
 Default: ``True``
 
 When set to ``False``, migrations won't run when creating the test database.
@@ -1161,10 +1146,6 @@ precedence and will be applied instead.
 
 See also :setting:`DATE_INPUT_FORMATS` and :setting:`TIME_INPUT_FORMATS`.
 
-.. versionchanged:: 3.1
-
-    In older versions, the default is a list containing also date-only formats.
-
 .. setting:: DEBUG
 
 ``DEBUG``
@@ -1272,8 +1253,6 @@ manually specified. Used when constructing the ``Content-Type`` header.
 ``DEFAULT_EXCEPTION_REPORTER``
 ------------------------------
 
-.. versionadded:: 3.1
-
 Default: ``'``:class:`django.views.debug.ExceptionReporter`\ ``'``
 
 Default exception reporter class to be used if none has been assigned to the
@@ -1317,8 +1296,6 @@ and :setting:`MANAGERS`; for that, see :setting:`SERVER_EMAIL`.
 ``DEFAULT_HASHING_ALGORITHM``
 -----------------------------
 
-.. versionadded:: 3.1
-
 Default: ``'sha256'``
 
 Default hashing algorithm to use for encoding cookies, password reset tokens in
@@ -1385,10 +1362,6 @@ Default: Not defined
 The directory used by the :ref:`file email backend <topic-email-file-backend>`
 to store output files.
 
-.. versionchanged:: 3.1
-
-    Support for :class:`pathlib.Path` was added.
-
 .. setting:: EMAIL_HOST
 
 ``EMAIL_HOST``
@@ -1910,10 +1883,6 @@ cookie from being sent in cross-site requests.
 
 See :setting:`SESSION_COOKIE_SAMESITE` for details about ``SameSite``.
 
-.. versionchanged:: 3.1
-
-    Setting ``LANGUAGE_COOKIE_SAMESITE = 'None'`` was allowed.
-
 .. setting:: LANGUAGE_COOKIE_SECURE
 
 ``LANGUAGE_COOKIE_SECURE``
@@ -2422,10 +2391,6 @@ If configured, the :class:`~django.middleware.security.SecurityMiddleware` sets
 the :ref:`referrer-policy` header on all responses that do not already have it
 to the value provided.
 
-.. versionchanged:: 3.1
-
-    In older versions, the default value is ``None``.
-
 .. setting:: SECURE_SSL_HOST
 
 ``SECURE_SSL_HOST``
@@ -2986,8 +2951,6 @@ rendered.
 ``PASSWORD_RESET_TIMEOUT``
 --------------------------
 
-.. versionadded:: 3.1
-
 Default: ``259200`` (3 days, in seconds)
 
 The number of seconds a password reset link is valid for.
@@ -3267,10 +3230,6 @@ Possible values for the setting are:
     Modern browsers provide a more secure default policy for the ``SameSite``
     flag and will assume ``Lax`` for cookies without an explicit value set.
 
-.. versionchanged:: 3.1
-
-    Setting ``SESSION_COOKIE_SAMESITE = 'None'`` was allowed.
-
 .. _SameSite: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
 
 .. setting:: SESSION_COOKIE_SECURE
diff --git a/docs/ref/templates/builtins.txt b/docs/ref/templates/builtins.txt
index 02b63db248..d431a9bc42 100644
--- a/docs/ref/templates/builtins.txt
+++ b/docs/ref/templates/builtins.txt
@@ -729,10 +729,6 @@ available to the included template::
     been evaluated and rendered* - not blocks that can be overridden by, for
     example, an extending template.
 
-.. versionchanged:: 3.1
-
-    Support for iterables of template names was added.
-
 .. templatetag:: load
 
 ``load``
@@ -1747,11 +1743,6 @@ example, when the active locale is ``en`` (English):
 Using ``floatformat`` with no argument is equivalent to using ``floatformat``
 with an argument of ``-1``.
 
-.. versionchanged:: 3.1
-
-    In older versions, a negative zero ``-0`` was returned for negative numbers
-    which round to zero.
-
 .. versionchanged:: 3.2
 
     The ``g`` suffix to force grouping by thousand separators was added.
diff --git a/docs/ref/utils.txt b/docs/ref/utils.txt
index 921aba5de8..f88fc7f9e7 100644
--- a/docs/ref/utils.txt
+++ b/docs/ref/utils.txt
@@ -43,11 +43,6 @@ need to distinguish caches by the ``Accept-language`` header.
     * All other parameters are added with their value, after applying
       ``str()`` to it.
 
-    .. versionchanged:: 3.1
-
-        Support for multiple field names in the ``no-cache`` directive was
-        added.
-
 .. function:: get_max_age(response)
 
     Returns the max-age from the response Cache-Control header as an integer
@@ -131,10 +126,6 @@ The functions defined in this module share the following properties:
     UTC offsets aren't supported; if ``value`` describes one, the result is
     ``None``.
 
-    .. versionchanged:: 3.1
-
-        Support for comma separators for milliseconds was added.
-
 .. function:: parse_datetime(value)
 
     Parses a string and returns a :class:`datetime.datetime`.
@@ -142,10 +133,6 @@ The functions defined in this module share the following properties:
     UTC offsets are supported; if ``value`` describes one, the result's
     ``tzinfo`` attribute is a :class:`datetime.timezone` instance.
 
-    .. versionchanged:: 3.1
-
-        Support for comma separators for milliseconds was added.
-
 .. function:: parse_duration(value)
 
     Parses a string and returns a :class:`datetime.timedelta`.
@@ -155,11 +142,6 @@ The functions defined in this module share the following properties:
     ``P4DT1H15M20S`` which is equivalent to ``4 1:15:20``) or PostgreSQL's
     day-time interval format (e.g. ``3 days 04:05:06``).
 
-    .. versionchanged:: 3.1
-
-        Support for comma separators for decimal fractions in the ISO 8601
-        format and for the format ``"DD HH:MM:SS,uuuuuu"`` was added.
-
 ``django.utils.decorators``
 ===========================
 
@@ -204,24 +186,18 @@ The functions defined in this module share the following properties:
 
 .. function:: sync_only_middleware(middleware)
 
-    .. versionadded:: 3.1
-
     Marks a middleware as :ref:`synchronous-only <async-middleware>`. (The
     default in Django, but this allows you to future-proof if the default ever
     changes in a future release.)
 
 .. function:: async_only_middleware(middleware)
 
-    .. versionadded:: 3.1
-
     Marks a middleware as :ref:`asynchronous-only <async-middleware>`. Django
     will wrap it in an asynchronous event loop when it is called from the WSGI
     request path.
 
 .. function:: sync_and_async_middleware(middleware)
 
-    .. versionadded:: 3.1
-
     Marks a middleware as :ref:`sync and async compatible <async-middleware>`,
     this allows to avoid converting requests. You must implement detection of
     the current request type to use this decorator. See :ref:`asynchronous
@@ -321,10 +297,6 @@ The functions defined in this module share the following properties:
 
     Returns an ASCII string containing the encoded result.
 
-    .. versionchanged:: 3.1
-
-        Support for :class:`pathlib.Path` ``path`` was added.
-
 .. function:: escape_uri_path(path)
 
     Escapes the unsafe characters from the path portion of a Uniform Resource
@@ -550,8 +522,6 @@ https://web.archive.org/web/20110718035220/http://diveintomark.org/archives/2004
 
 .. class:: classproperty(method=None)
 
-    .. versionadded:: 3.1
-
     Similar to :py:func:`@classmethod <classmethod>`, the ``@classproperty``
     decorator converts the result of a method with a single ``cls`` argument
     into a property that can be accessed directly from the class.
diff --git a/docs/topics/async.txt b/docs/topics/async.txt
index b25dee7605..a79562e0f4 100644
--- a/docs/topics/async.txt
+++ b/docs/topics/async.txt
@@ -16,15 +16,9 @@ You can expect to see this in future releases. For now, you can use the
 There is also a whole range of async-native Python libraries that you can
 integrate with.
 
-.. versionchanged:: 3.1
-
-    Support for async views was added.
-
 Async views
 ===========
 
-.. versionadded:: 3.1
-
 Any view can be declared async by making the callable part of it return a
 coroutine - commonly, this is done using ``async def``. For a function-based
 view, this means declaring the whole view using ``async def``. For a
diff --git a/docs/topics/auth/customizing.txt b/docs/topics/auth/customizing.txt
index 8314d9f171..9ae30b4b25 100644
--- a/docs/topics/auth/customizing.txt
+++ b/docs/topics/auth/customizing.txt
@@ -705,10 +705,6 @@ The following attributes and methods are available on any subclass of
         Returns an HMAC of the password field. Used for
         :ref:`session-invalidation-on-password-change`.
 
-        .. versionchanged:: 3.1
-
-            The hashing algorithm was changed to the SHA-256.
-
 :class:`~models.AbstractUser` subclasses :class:`~models.AbstractBaseUser`:
 
 .. class:: models.AbstractUser
diff --git a/docs/topics/auth/passwords.txt b/docs/topics/auth/passwords.txt
index 28f22f048e..4b13334379 100644
--- a/docs/topics/auth/passwords.txt
+++ b/docs/topics/auth/passwords.txt
@@ -429,10 +429,6 @@ from the ``User`` model.
     hasher. If the password argument is ``None``, an unusable password is
     returned (one that will never be accepted by :func:`check_password`).
 
-    .. versionchanged:: 3.1
-
-        The ``password`` parameter must be a string or bytes if not ``None``.
-
 .. function:: is_password_usable(encoded_password)
 
     Returns ``False`` if the password is a result of
diff --git a/docs/topics/cache.txt b/docs/topics/cache.txt
index afab1cb61e..a7bf00741d 100644
--- a/docs/topics/cache.txt
+++ b/docs/topics/cache.txt
@@ -628,11 +628,6 @@ Additionally, ``cache_page`` automatically sets ``Cache-Control`` and
 ``Expires`` headers in the response which affect :ref:`downstream caches
 <downstream-caches>`.
 
-.. versionchanged:: 3.1
-
-    In older versions, the ``max-age`` directive from the ``Cache-Control``
-    header had precedence over the cache timeout set by ``cache_page``.
-
 Specifying per-view cache in the URLconf
 ----------------------------------------
 
@@ -930,10 +925,6 @@ particular object::
 ``delete()`` returns ``True`` if the key was successfully deleted, ``False``
 otherwise.
 
-.. versionchanged:: 3.1
-
-    The boolean return value was added.
-
 .. method:: cache.delete_many(keys, version=None)
 
 If you want to clear a bunch of keys at once, ``delete_many()`` can take a list
diff --git a/docs/topics/db/queries.txt b/docs/topics/db/queries.txt
index c3b7948caa..39508e280c 100644
--- a/docs/topics/db/queries.txt
+++ b/docs/topics/db/queries.txt
@@ -665,10 +665,6 @@ The ``F()`` objects support bitwise operations by ``.bitand()``, ``.bitor()``,
 
     Oracle doesn't support bitwise XOR operation.
 
-.. versionchanged:: 3.1
-
-    Support for ``.bitxor()`` was added.
-
 .. _using-transforms-in-expressions:
 
 Expressions can reference transforms
diff --git a/docs/topics/email.txt b/docs/topics/email.txt
index 6ea80e44ca..04ed164c01 100644
--- a/docs/topics/email.txt
+++ b/docs/topics/email.txt
@@ -529,10 +529,6 @@ To specify this backend, put the following in your settings::
 This backend is not intended for use in production -- it is provided as a
 convenience that can be used during development.
 
-.. versionchanged:: 3.1
-
-    Support for :class:`pathlib.Path` was added.
-
 .. _topic-email-memory-backend:
 
 In-memory backend
diff --git a/docs/topics/files.txt b/docs/topics/files.txt
index 59825023ce..9398df41d7 100644
--- a/docs/topics/files.txt
+++ b/docs/topics/files.txt
@@ -206,8 +206,6 @@ you can pass them in as the ``storage`` argument to a
 Using a callable
 ----------------
 
-.. versionadded:: 3.1
-
 You can use a callable as the :attr:`~django.db.models.FileField.storage`
 parameter for :class:`~django.db.models.FileField` or
 :class:`~django.db.models.ImageField`. This allows you to modify the used
diff --git a/docs/topics/http/middleware.txt b/docs/topics/http/middleware.txt
index 1626d16992..ac440a9fca 100644
--- a/docs/topics/http/middleware.txt
+++ b/docs/topics/http/middleware.txt
@@ -291,8 +291,6 @@ object with a :attr:`~django.http.HttpResponse.status_code` of 404.
 Asynchronous support
 ====================
 
-.. versionadded:: 3.1
-
 Middleware can support any combination of synchronous and asynchronous
 requests. Django will adapt requests to fit the middleware's requirements if it
 cannot support both, but at a performance penalty.
@@ -423,7 +421,3 @@ These are the behavioral differences between using :setting:`MIDDLEWARE` and
    HTTP response, and then the next middleware in line will see that
    response. Middleware are never skipped due to a middleware raising an
    exception.
-
-.. versionchanged:: 3.1
-
-    Support for asynchronous requests was added to the ``MiddlewareMixin``.
diff --git a/docs/topics/http/urls.txt b/docs/topics/http/urls.txt
index 31671db81d..6ab915cfd0 100644
--- a/docs/topics/http/urls.txt
+++ b/docs/topics/http/urls.txt
@@ -157,10 +157,6 @@ A converter is a class that includes the following:
   and as a consequence :func:`~django.urls.reverse` will raise
   :class:`~django.urls.NoReverseMatch` unless another URL pattern matches.
 
-  .. versionchanged:: 3.1
-
-    Support for raising ``ValueError`` to indicate no match was added.
-
 For example::
 
     class FourDigitYearConverter:
diff --git a/docs/topics/http/views.txt b/docs/topics/http/views.txt
index 554e93386c..656d1ce155 100644
--- a/docs/topics/http/views.txt
+++ b/docs/topics/http/views.txt
@@ -208,8 +208,6 @@ in a test view. For example::
 Async views
 ===========
 
-.. versionadded:: 3.1
-
 As well as being synchronous functions, views can also be asynchronous
 ("async") functions, normally defined using Python's ``async def`` syntax.
 Django will automatically detect these and run them in an async context.
diff --git a/docs/topics/i18n/translation.txt b/docs/topics/i18n/translation.txt
index 1819359725..8229e8ffcb 100644
--- a/docs/topics/i18n/translation.txt
+++ b/docs/topics/i18n/translation.txt
@@ -272,10 +272,6 @@ In a case like this, consider something like the following::
 
         a format specification for argument 'name', as in 'msgstr[0]', doesn't exist in 'msgid'
 
-.. versionchanged: 2.2.12
-
-    Added support for different plural equations in ``.po`` files.
-
 .. _contextual-markers:
 
 Contextual markers
@@ -626,11 +622,6 @@ using the ``context`` keyword:
 
     {% translate "May" context "month name" %}
 
-.. versionchanged:: 3.1
-
-   The ``trans`` tag was renamed to ``translate``.  The ``trans``
-   tag is still supported as an alias for backwards compatibility.
-
 .. templatetag:: blocktrans
 .. templatetag:: blocktranslate
 
@@ -749,11 +740,6 @@ will result in the entry ``"First sentence. Second paragraph."`` in the PO file,
 compared to ``"\n  First sentence.\n  Second paragraph.\n"``, if the
 ``trimmed`` option had not been specified.
 
-.. versionchanged:: 3.1
-
-   The ``blocktrans`` tag was renamed to ``blocktranslate``. The ``blocktrans``
-   tag is still supported as an alias for backwards compatibility.
-
 String literals passed to tags and filters
 ------------------------------------------
 
@@ -1817,12 +1803,6 @@ set, to ``/``, depending on the nature of the request:
   the ``next`` parameter was set. Otherwise a 204 status code (No Content) will
   be returned.
 
-.. versionchanged:: 3.1
-
-    In older versions, the distinction for the fallback is based on whether the
-    ``X-Requested-With`` header is set to the value ``XMLHttpRequest``. This is
-    set by the jQuery ``ajax()`` method.
-
 Here's example HTML template code:
 
 .. code-block:: html+django
diff --git a/docs/topics/serialization.txt b/docs/topics/serialization.txt
index 9ef851368a..55cb505472 100644
--- a/docs/topics/serialization.txt
+++ b/docs/topics/serialization.txt
@@ -277,11 +277,6 @@ function::
 Also note that GeoDjango provides a :doc:`customized GeoJSON serializer
 </ref/contrib/gis/serializers>`.
 
-.. versionchanged:: 3.1
-
-    All data is now dumped with Unicode. If you need the previous behavior,
-    pass ``ensure_ascii=True`` to the ``serializers.serialize()`` function.
-
 ``DjangoJSONEncoder``
 ~~~~~~~~~~~~~~~~~~~~~
 
@@ -341,11 +336,6 @@ again a mapping with the key being name of the field and the value the value::
 
 Referential fields are again represented by the PK or sequence of PKs.
 
-.. versionchanged:: 3.1
-
-    All data is now dumped with Unicode. If you need the previous behavior,
-    pass ``allow_unicode=False`` to the ``serializers.serialize()`` function.
-
 .. _topics-serialization-natural-keys:
 
 Natural keys
diff --git a/docs/topics/signing.txt b/docs/topics/signing.txt
index 2fc49ab747..6e4a61d2c4 100644
--- a/docs/topics/signing.txt
+++ b/docs/topics/signing.txt
@@ -101,10 +101,6 @@ generate signatures. You can use a different secret by passing it to the
     and underscores. ``algorithm`` must be an algorithm supported by
     :py:mod:`hashlib`, it defaults to ``'sha256'``.
 
-    .. versionchanged:: 3.1
-
-        The ``algorithm`` parameter was added.
-
 .. versionchanged:: 3.2
 
     The ``sign_object()`` and ``unsign_object()`` methods were added.
@@ -197,10 +193,6 @@ created within a specified period of time::
         otherwise raises ``SignatureExpired``. The ``max_age`` parameter can
         accept an integer or a :py:class:`datetime.timedelta` object.
 
-    .. versionchanged:: 3.1
-
-        The ``algorithm`` parameter was added.
-
 .. _signing-complex-data:
 
 Protecting complex data structures
diff --git a/docs/topics/testing/advanced.txt b/docs/topics/testing/advanced.txt
index 54fed92168..1fa3423139 100644
--- a/docs/topics/testing/advanced.txt
+++ b/docs/topics/testing/advanced.txt
@@ -573,10 +573,6 @@ execute and tear down the test suite.
     custom arguments by calling ``parser.add_argument()`` inside the method, so
     that the :djadmin:`test` command will be able to use those arguments.
 
-    .. versionadded:: 3.1
-
-        The ``buffer`` argument was added.
-
     .. versionadded:: 3.2
 
         The ``enable_faulthandler`` and ``timing`` arguments were added.
@@ -671,10 +667,6 @@ Methods
 
     Runs the :doc:`system checks </topics/checks>` on the test ``databases``.
 
-    .. versionadded:: 3.1
-
-        The ``databases`` parameter was added.
-
 .. method:: DiscoverRunner.run_suite(suite, **kwargs)
 
     Runs the test suite.
diff --git a/docs/topics/testing/tools.txt b/docs/topics/testing/tools.txt
index 678eb260aa..82f287fe71 100644
--- a/docs/topics/testing/tools.txt
+++ b/docs/topics/testing/tools.txt
@@ -769,11 +769,6 @@ If your tests make any database queries, use subclasses
     :exc:`unittest.SkipTest` in ``setUpClass()``, be sure to do it before
     calling ``super()`` to avoid this.
 
-.. versionchanged:: 3.1
-
-    The ``debug()`` method was implemented to allow running a test without
-    collecting the result and catching exceptions.
-
 ``TransactionTestCase``
 -----------------------
 
@@ -1806,8 +1801,6 @@ won't be run.
 Testing asynchronous code
 =========================
 
-.. versionadded:: 3.1
-
 If you merely want to test the output of your asynchronous views, the standard
 test client will run them inside their own asynchronous loop without any extra
 work needed on your part.