  ----
  * :setting:`DATA_UPLOAD_MAX_MEMORY_SIZE`
  * :setting:`DATA_UPLOAD_MAX_NUMBER_FIELDS`
  * :setting:`DEFAULT_CHARSET`
  * :setting:`DEFAULT_CONTENT_TYPE`
  * :setting:`DISALLOWED_USER_AGENTS`
  * :setting:`FORCE_SCRIPT_NAME`
  * :setting:`INTERNAL_IPS`
  * :setting:`MIDDLEWARE`
  * Security
 
</s> remove     specified, it is formed by the :setting:`DEFAULT_CONTENT_TYPE` and
 </s> add     specified, it is formed by ``'text/html'`` and the </s> remove manually specified. Used with :setting:`DEFAULT_CONTENT_TYPE` to construct the
``Content-Type`` header.

.. setting:: DEFAULT_CONTENT_TYPE

``DEFAULT_CONTENT_TYPE``
------------------------

Default: ``'text/html'``

Default content type to use for all ``HttpResponse`` objects, if a MIME type
isn't manually specified. Used with :setting:`DEFAULT_CHARSET` to construct
the ``Content-Type`` header.

.. deprecated:: 2.0

    This setting is deprecated because it doesn't interact well with
    third-party apps and is obsolete since HTML5 has mostly superseded XHTML.
 </s> add manually specified. Used when constructing the ``Content-Type`` header. </s> remove         :setting:`DEFAULT_CONTENT_TYPE` is used.
 </s> add         ``'text/html'`` is used. </s> remove         :setting:`DEFAULT_CONTENT_TYPE` is used.
 </s> add         ``'text/html'`` is used.
  ----
  * :setting:`DATA_UPLOAD_MAX_MEMORY_SIZE`
  * :setting:`DATA_UPLOAD_MAX_NUMBER_FIELDS`
  * :setting:`DEFAULT_CHARSET`

  * :setting:`DISALLOWED_USER_AGENTS`
  * :setting:`FORCE_SCRIPT_NAME`
  * :setting:`INTERNAL_IPS`
  * :setting:`MIDDLEWARE`
  * Security
keep keep keep keep replace keep keep keep keep keep
 Refs #27829 -- Removed settings.DEFAULT_CONTENT_TYPE per deprecation timeline. 
docs/ref/settings.txt