Removed versionadded/changed annotations for 2.2.

docs/ref/models/constraints.txt

@@ -6,8 +6,6 @@ Constraints reference
 
 .. currentmodule:: django.db.models
 
-.. versionadded:: 2.2
-
 The classes defined in this module create database constraints. They are added
 in the model :attr:`Meta.constraints <django.db.models.Options.constraints>`
 option.

docs/ref/models/database-functions.txt

@@ -154,8 +154,6 @@ will result in a database error.
 
 .. class:: NullIf(expression1, expression2)
 
-.. versionadded:: 2.2
-
 Accepts two expressions and returns ``None`` if they are equal, otherwise
 returns ``expression1``.
 
@@ -274,8 +272,6 @@ Usage example::
 
 .. class:: ExtractIsoYear(expression, tzinfo=None, **extra)
 
-    .. versionadded:: 2.2
-
     Returns the ISO-8601 week-numbering year.
 
     .. attribute:: lookup_name = 'iso_year'
@@ -716,8 +712,6 @@ that deal with time-parts can be used with ``TimeField``::
 Math Functions
 ==============
 
-.. versionadded:: 2.2
-
 We'll be using the following model in math function examples::
 
     class Vector(models.Model):
@@ -1419,8 +1413,6 @@ Usage example::
 
 .. class:: Reverse(expression, **extra)
 
-.. versionadded:: 2.2
-
 Accepts a single text field or expression and returns the characters of that
 expression in reverse order.
 

docs/ref/models/expressions.txt

@@ -400,8 +400,6 @@ The ``Aggregate`` API is as follows:
 
     .. attribute:: allow_distinct
 
-        .. versionadded:: 2.2
-
         A class attribute determining whether or not this aggregate function
         allows passing a ``distinct`` keyword argument. If set to ``False``
         (default), ``TypeError`` is raised if ``distinct=True`` is passed.
@@ -435,10 +433,6 @@ and :ref:`filtering-on-annotations` for example usage.
 The ``**extra`` kwargs are ``key=value`` pairs that can be interpolated
 into the ``template`` attribute.
 
-.. versionadded:: 2.2
-
-    The ``allow_distinct`` attribute and ``distinct`` argument were added.
-
 Creating your own Aggregate Functions
 -------------------------------------
 

docs/ref/models/indexes.txt

@@ -90,8 +90,6 @@ in the same tablespace as the table.
 
 .. attribute:: Index.opclasses
 
-.. versionadded:: 2.2
-
 The names of the `PostgreSQL operator classes
 <https://www.postgresql.org/docs/current/indexes-opclass.html>`_ to use for
 this index. If you require a custom operator class, you must provide one for
@@ -110,8 +108,6 @@ opclasses=['jsonb_path_ops'])`` creates a gin index on ``jsonfield`` using
 
 .. attribute:: Index.condition
 
-.. versionadded:: 2.2
-
 If the table is very large and your queries mostly target a subset of rows,
 it may be useful to restrict an index to that subset. Specify a condition as a
 :class:`~django.db.models.Q`. For example, ``condition=Q(pages__gt=400)``

docs/ref/models/options.txt

@@ -459,8 +459,6 @@ Django quotes column and table names behind the scenes.
 
 .. attribute:: Options.constraints
 
-    .. versionadded:: 2.2
-
     A list of :doc:`constraints </ref/models/constraints>` that you want to
     define on the model::
 

docs/ref/models/querysets.txt

@@ -2091,15 +2091,9 @@ that fail constraints such as duplicate unique values. Enabling this parameter
 disables setting the primary key on each model instance (if the database
 normally supports it).
 
-.. versionchanged:: 2.2
-
-    The ``ignore_conflicts`` parameter was added.
-
 ``bulk_update()``
 ~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 2.2
-
 .. method:: bulk_update(objs, fields, batch_size=None)
 
 This method efficiently updates the given fields on the provided model
@@ -2253,10 +2247,6 @@ psycopg mailing list <https://www.postgresql.org/message-id/4D2F2C71.8080805%40d
     between the number of rows transferred and the data discarded if the loop
     is exited early.
 
-.. versionchanged:: 2.2
-
-    Support for result streaming on SQLite was added.
-
 ``latest()``
 ~~~~~~~~~~~~
 
@@ -3003,8 +2993,6 @@ in the database <database-time-zone-definitions>`.
 ``iso_year``
 ~~~~~~~~~~~~
 
-.. versionadded:: 2.2
-
 For date and datetime fields, an exact ISO 8601 week-numbering year match.
 Allows chaining additional field lookups. Takes an integer year.
 
@@ -3464,10 +3452,6 @@ by the aggregate.
         By default, ``StdDev`` returns the population standard deviation. However,
         if ``sample=True``, the return value will be the sample standard deviation.
 
-    .. versionchanged:: 2.2
-
-        SQLite support was added.
-
 ``Sum``
 ~~~~~~~
 
@@ -3508,10 +3492,6 @@ by the aggregate.
         By default, ``Variance`` returns the population variance. However,
         if ``sample=True``, the return value will be the sample variance.
 
-    .. versionchanged:: 2.2
-
-        SQLite support was added.
-
 Query-related tools
 ===================
 

docs/ref/models/relations.txt

@@ -73,10 +73,6 @@ Related objects reference
         :ref:`intermediate model <intermediary-manytomany>` instance(s), if
         needed.
 
-        .. versionchanged:: 2.2
-
-            The ``through_defaults`` argument was added.
-
     .. method:: create(through_defaults=None, **kwargs)
 
         Creates a new object, saves it and puts it in the related object set.
@@ -111,10 +107,6 @@ Related objects reference
         :ref:`intermediate model <intermediary-manytomany>` instance, if
         needed.
 
-        .. versionchanged:: 2.2
-
-            The ``through_defaults`` argument was added.
-
     .. method:: remove(*objs, bulk=True)
 
         Removes the specified model objects from the related object set::
@@ -203,10 +195,6 @@ Related objects reference
         :ref:`intermediate model <intermediary-manytomany>` instance(s), if
         needed.
 
-        .. versionchanged:: 2.2
-
-            The ``through_defaults`` argument was added.
-
     .. note::
 
        Note that ``add()``, ``create()``, ``remove()``, ``clear()``, and