        representing the given year.
  
        .. versionchanged:: 1.5
  
        Previously, this returned a string.
  
      * ``next_year``: A :class:`~datetime.date` object
        representing the first day of the next year, according to
        :attr:`~BaseDateListView.allow_empty` and
        :attr:`~DateMixin.allow_future`.
 
</s> remove     Raises :exc:`InvalidPage` if previous page doesn't exist.
 </s> add         Raises :exc:`InvalidPage` if previous page doesn't exist. </s> remove You can now use :class:`HttpResponse` as a file-like object even if it was
instantiated with an iterator. Django will consume and save the content of
the iterator on first access.
 </s> add     You can now use :class:`HttpResponse` as a file-like object even if it was
    instantiated with an iterator. Django will consume and save the content of
    the iterator on first access. </s> remove     Raises :exc:`InvalidPage` if next page doesn't exist.
 </s> add         Raises :exc:`InvalidPage` if next page doesn't exist. </s> remove As of Django 1.7, when :class:`HttpResponse` is instantiated with an
iterator, it will consume it immediately, store the response content as a
string, and discard the iterator.
 </s> add     As of Django 1.7, when :class:`HttpResponse` is instantiated with an
    iterator, it will consume it immediately, store the response content as a
    string, and discard the iterator. </s> remove         ``success_url`` may contain dictionary string formatting, which
        will be interpolated against the object's field attributes. For
        example, you could use ``success_url="/parent/%(parent_id)s/"`` to
        redirect to a URL composed out of the ``parent_id`` field on a model.
 </s> add             ``success_url`` may contain dictionary string formatting, which
            will be interpolated against the object's field attributes. For
            example, you could use ``success_url="/parent/%(parent_id)s/"`` to
            redirect to a URL composed out of the ``parent_id`` field on a model.
         Previously, this returned a string.
        representing the given year.
  
        .. versionchanged:: 1.5
  
         Previously, this returned a string.
  
      * ``next_year``: A :class:`~datetime.date` object
        representing the first day of the next year, according to
        :attr:`~BaseDateListView.allow_empty` and
        :attr:`~DateMixin.allow_future`.
keep keep keep keep replace keep keep keep keep keep
 Adapted uses of versionchanged/versionadded to the new form.

Refs #20104. 
docs/ref/class-based-views/generic-date-based.txt