Remove outdated version marker directives (< 2.8.0) from documentation (#7198)

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@ -4,8 +4,6 @@
asyncio asyncio
======= =======
.. versionadded:: 2.0
Scrapy has partial support for :mod:`asyncio`. After you :ref:`install the Scrapy has partial support for :mod:`asyncio`. After you :ref:`install the
asyncio reactor <install-asyncio>`, you may use :mod:`asyncio` and asyncio reactor <install-asyncio>`, you may use :mod:`asyncio` and
:mod:`asyncio`-powered libraries in any :doc:`coroutine <coroutines>`. :mod:`asyncio`-powered libraries in any :doc:`coroutine <coroutines>`.

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@ -233,9 +233,6 @@ genspider
* Syntax: ``scrapy genspider [-t template] <name> <domain or URL>`` * Syntax: ``scrapy genspider [-t template] <name> <domain or URL>``
* Requires project: *no* * Requires project: *no*
.. versionadded:: 2.6.0
The ability to pass a URL instead of a domain.
Creates a new spider in the current folder or in the current project's ``spiders`` folder, if called from inside a project. The ``<name>`` parameter is set as the spider's ``name``, while ``<domain or URL>`` is used to generate the ``allowed_domains`` and ``start_urls`` spider's attributes. Creates a new spider in the current folder or in the current project's ``spiders`` folder, if called from inside a project. The ``<name>`` parameter is set as the spider's ``name``, while ``<domain or URL>`` is used to generate the ``allowed_domains`` and ``start_urls`` spider's attributes.
Usage example:: Usage example::
@ -509,8 +506,6 @@ Supported options:
* ``--output`` or ``-o``: dump scraped items to a file * ``--output`` or ``-o``: dump scraped items to a file
.. versionadded:: 2.3
.. skip: start .. skip: start
Usage example:: Usage example::

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@ -4,8 +4,6 @@
Coroutines Coroutines
========== ==========
.. versionadded:: 2.0
Scrapy :ref:`supports <coroutine-support>` the :ref:`coroutine syntax <async>` Scrapy :ref:`supports <coroutine-support>` the :ref:`coroutine syntax <async>`
(i.e. ``async def``). (i.e. ``async def``).
@ -28,10 +26,6 @@ hence use coroutine syntax (e.g. ``await``, ``async for``, ``async with``):
If you are using any custom or third-party :ref:`spider middleware If you are using any custom or third-party :ref:`spider middleware
<topics-spider-middleware>`, see :ref:`sync-async-spider-middleware`. <topics-spider-middleware>`, see :ref:`sync-async-spider-middleware`.
.. versionchanged:: 2.7
Output of async callbacks is now processed asynchronously instead of
collecting all of it first.
- The :meth:`process_item` method of - The :meth:`process_item` method of
:ref:`item pipelines <topics-item-pipeline>`. :ref:`item pipelines <topics-item-pipeline>`.
@ -53,8 +47,6 @@ hence use coroutine syntax (e.g. ``await``, ``async for``, ``async with``):
See also :ref:`sync-async-spider-middleware` and See also :ref:`sync-async-spider-middleware` and
:ref:`universal-spider-middleware`. :ref:`universal-spider-middleware`.
.. versionadded:: 2.7
- The :meth:`~scrapy.spidermiddlewares.SpiderMiddleware.process_start` method - The :meth:`~scrapy.spidermiddlewares.SpiderMiddleware.process_start` method
of :ref:`spider middlewares <custom-spider-middleware>`, which *must* be of :ref:`spider middlewares <custom-spider-middleware>`, which *must* be
defined as an :term:`asynchronous generator`. defined as an :term:`asynchronous generator`.
@ -307,8 +299,6 @@ You can also send multiple requests in parallel:
Mixing synchronous and asynchronous spider middlewares Mixing synchronous and asynchronous spider middlewares
====================================================== ======================================================
.. versionadded:: 2.7
The output of a :class:`~scrapy.Request` callback is passed as the ``result`` The output of a :class:`~scrapy.Request` callback is passed as the ``result``
parameter to the parameter to the
:meth:`~scrapy.spidermiddlewares.SpiderMiddleware.process_spider_output` method :meth:`~scrapy.spidermiddlewares.SpiderMiddleware.process_spider_output` method
@ -396,8 +386,6 @@ option. Otherwise, it's better to choose the second option.
Universal spider middlewares Universal spider middlewares
---------------------------- ----------------------------
.. versionadded:: 2.7
To allow writing a spider middleware that supports asynchronous execution of To allow writing a spider middleware that supports asynchronous execution of
its ``process_spider_output`` method in Scrapy 2.7 and later (avoiding its ``process_spider_output`` method in Scrapy 2.7 and later (avoiding
:ref:`asynchronous-to-synchronous conversions <sync-async-spider-middleware>`) :ref:`asynchronous-to-synchronous conversions <sync-async-spider-middleware>`)

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@ -917,10 +917,6 @@ Default: ``[]``
Meta tags within these tags are ignored. Meta tags within these tags are ignored.
.. versionchanged:: 2.0
The default value of :setting:`METAREFRESH_IGNORE_TAGS` changed from
``["script", "noscript"]`` to ``[]``.
.. versionchanged:: 2.11.2 .. versionchanged:: 2.11.2
The default value of :setting:`METAREFRESH_IGNORE_TAGS` changed from The default value of :setting:`METAREFRESH_IGNORE_TAGS` changed from
``[]`` to ``["noscript"]``. ``[]`` to ``["noscript"]``.

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@ -83,8 +83,6 @@ This exception is raised to indicate an unsupported feature.
StopDownload StopDownload
------------- -------------
.. versionadded:: 2.2
.. exception:: StopDownload(fail=True) .. exception:: StopDownload(fail=True)
Raised from a :class:`~scrapy.signals.bytes_received` or :class:`~scrapy.signals.headers_received` Raised from a :class:`~scrapy.signals.bytes_received` or :class:`~scrapy.signals.headers_received`

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@ -163,9 +163,6 @@ BaseItemExporter
populate their respective instance attributes: :attr:`fields_to_export`, populate their respective instance attributes: :attr:`fields_to_export`,
:attr:`export_empty_fields`, :attr:`encoding`, :attr:`indent`. :attr:`export_empty_fields`, :attr:`encoding`, :attr:`indent`.
.. versionadded:: 2.0
The *dont_fail* parameter.
.. method:: export_item(item) .. method:: export_item(item)
Exports the given item. This method must be implemented in subclasses. Exports the given item. This method must be implemented in subclasses.

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@ -236,8 +236,6 @@ This storage backend uses :ref:`delayed file delivery <delayed-file-delivery>`.
Google Cloud Storage (GCS) Google Cloud Storage (GCS)
-------------------------- --------------------------
.. versionadded:: 2.3
The feeds are stored on `Google Cloud Storage`_. The feeds are stored on `Google Cloud Storage`_.
- URI scheme: ``gs`` - URI scheme: ``gs``
@ -303,8 +301,6 @@ feed URI, allowing item delivery to start way before the end of the crawl.
Item filtering Item filtering
============== ==============
.. versionadded:: 2.6.0
You can filter items that you want to allow for a particular feed by using the You can filter items that you want to allow for a particular feed by using the
``item_classes`` option in :ref:`feeds options <feed-options>`. Only items of ``item_classes`` option in :ref:`feeds options <feed-options>`. Only items of
the specified types will be added to the feed. the specified types will be added to the feed.
@ -344,8 +340,6 @@ ItemFilter
Post-Processing Post-Processing
=============== ===============
.. versionadded:: 2.6.0
Scrapy provides an option to activate plugins to post-process feeds before they are exported Scrapy provides an option to activate plugins to post-process feeds before they are exported
to feed storages. In addition to using :ref:`builtin plugins <builtin-plugins>`, you to feed storages. In addition to using :ref:`builtin plugins <builtin-plugins>`, you
can create your own :ref:`plugins <custom-plugins>`. can create your own :ref:`plugins <custom-plugins>`.
@ -425,8 +419,6 @@ These are the settings used for configuring the feed exports:
FEEDS FEEDS
----- -----
.. versionadded:: 2.1
Default: ``{}`` Default: ``{}``
A dictionary in which every key is a feed URI (or a :class:`pathlib.Path` A dictionary in which every key is a feed URI (or a :class:`pathlib.Path`
@ -479,8 +471,6 @@ as a fallback value if that key is not provided for a specific feed definition:
- ``batch_item_count``: falls back to - ``batch_item_count``: falls back to
:setting:`FEED_EXPORT_BATCH_ITEM_COUNT`. :setting:`FEED_EXPORT_BATCH_ITEM_COUNT`.
.. versionadded:: 2.3.0
- ``encoding``: falls back to :setting:`FEED_EXPORT_ENCODING`. - ``encoding``: falls back to :setting:`FEED_EXPORT_ENCODING`.
- ``fields``: falls back to :setting:`FEED_EXPORT_FIELDS`. - ``fields``: falls back to :setting:`FEED_EXPORT_FIELDS`.
@ -489,20 +479,14 @@ as a fallback value if that key is not provided for a specific feed definition:
If undefined or empty, all items are exported. If undefined or empty, all items are exported.
.. versionadded:: 2.6.0
- ``item_filter``: a :ref:`filter class <item-filter>` to filter items to export. - ``item_filter``: a :ref:`filter class <item-filter>` to filter items to export.
:class:`~scrapy.extensions.feedexport.ItemFilter` is used be default. :class:`~scrapy.extensions.feedexport.ItemFilter` is used be default.
.. versionadded:: 2.6.0
- ``indent``: falls back to :setting:`FEED_EXPORT_INDENT`. - ``indent``: falls back to :setting:`FEED_EXPORT_INDENT`.
- ``item_export_kwargs``: :class:`dict` with keyword arguments for the corresponding :ref:`item exporter class <topics-exporters>`. - ``item_export_kwargs``: :class:`dict` with keyword arguments for the corresponding :ref:`item exporter class <topics-exporters>`.
.. versionadded:: 2.4.0
- ``overwrite``: whether to overwrite the file if it already exists - ``overwrite``: whether to overwrite the file if it already exists
(``True``) or append to its content (``False``). (``True``) or append to its content (``False``).
@ -522,8 +506,6 @@ as a fallback value if that key is not provided for a specific feed definition:
- :ref:`topics-feed-storage-stdout`: ``False`` (overwriting is not supported) - :ref:`topics-feed-storage-stdout`: ``False`` (overwriting is not supported)
.. versionadded:: 2.4.0
- ``store_empty``: falls back to :setting:`FEED_STORE_EMPTY`. - ``store_empty``: falls back to :setting:`FEED_STORE_EMPTY`.
- ``uri_params``: falls back to :setting:`FEED_URI_PARAMS`. - ``uri_params``: falls back to :setting:`FEED_URI_PARAMS`.
@ -532,8 +514,6 @@ as a fallback value if that key is not provided for a specific feed definition:
The plugins will be used in the order of the list passed. The plugins will be used in the order of the list passed.
.. versionadded:: 2.6.0
.. setting:: FEED_EXPORT_ENCODING .. setting:: FEED_EXPORT_ENCODING
FEED_EXPORT_ENCODING FEED_EXPORT_ENCODING
@ -700,8 +680,6 @@ format in :setting:`FEED_EXPORTERS`. E.g., to disable the built-in CSV exporter
FEED_EXPORT_BATCH_ITEM_COUNT FEED_EXPORT_BATCH_ITEM_COUNT
---------------------------- ----------------------------
.. versionadded:: 2.3.0
Default: ``0`` Default: ``0``
If assigned an integer number higher than ``0``, Scrapy generates multiple output files If assigned an integer number higher than ``0``, Scrapy generates multiple output files
@ -771,15 +749,11 @@ The function signature should be as follows:
If :setting:`FEED_EXPORT_BATCH_ITEM_COUNT` is ``0``, ``batch_id`` If :setting:`FEED_EXPORT_BATCH_ITEM_COUNT` is ``0``, ``batch_id``
is always ``1``. is always ``1``.
.. versionadded:: 2.3.0
- ``batch_time``: UTC date and time, in ISO format with ``:`` - ``batch_time``: UTC date and time, in ISO format with ``:``
replaced with ``-``. replaced with ``-``.
See :setting:`FEED_EXPORT_BATCH_ITEM_COUNT`. See :setting:`FEED_EXPORT_BATCH_ITEM_COUNT`.
.. versionadded:: 2.3.0
- ``time``: ``batch_time``, with microseconds set to ``0``. - ``time``: ``batch_time``, with microseconds set to ``0``.
:type params: dict :type params: dict

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@ -80,8 +80,6 @@ Example:
Dataclass objects Dataclass objects
----------------- -----------------
.. versionadded:: 2.2
:func:`~dataclasses.dataclass` allows the defining of item classes with field names, :func:`~dataclasses.dataclass` allows the defining of item classes with field names,
so that :ref:`item exporters <topics-exporters>` can export all fields by so that :ref:`item exporters <topics-exporters>` can export all fields by
default even if the first scraped object does not have values for all of them. default even if the first scraped object does not have values for all of them.
@ -112,8 +110,6 @@ Example:
attr.s objects attr.s objects
-------------- --------------
.. versionadded:: 2.2
:func:`attr.s` allows the defining of item classes with field names, :func:`attr.s` allows the defining of item classes with field names,
so that :ref:`item exporters <topics-exporters>` can export all fields by so that :ref:`item exporters <topics-exporters>` can export all fields by
default even if the first scraped object does not have values for all of them. default even if the first scraped object does not have values for all of them.

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@ -76,10 +76,6 @@ LxmlLinkExtractor
If not given, it will default to If not given, it will default to
:data:`scrapy.linkextractors.IGNORED_EXTENSIONS`. :data:`scrapy.linkextractors.IGNORED_EXTENSIONS`.
.. versionchanged:: 2.0
:data:`~scrapy.linkextractors.IGNORED_EXTENSIONS` now includes
``7z``, ``7zip``, ``apk``, ``bz2``, ``cdr``, ``dmg``, ``ico``,
``iso``, ``tar``, ``tar.gz``, ``webm``, and ``xz``.
:type deny_extensions: list :type deny_extensions: list
:param restrict_xpaths: is an XPath (or list of XPath's) which defines :param restrict_xpaths: is an XPath (or list of XPath's) which defines

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@ -174,9 +174,6 @@ with the data to be parsed, and return a parsed value. So you can use any
function as input or output processor. The only requirement is that they must function as input or output processor. The only requirement is that they must
accept one (and only one) positional argument, which will be an iterable. accept one (and only one) positional argument, which will be an iterable.
.. versionchanged:: 2.0
Processors no longer need to be methods.
.. note:: Both input and output processors must receive an iterable as their .. note:: Both input and output processors must receive an iterable as their
first argument. The output of those functions can be anything. The result of first argument. The output of those functions can be anything. The result of
input processors will be appended to an internal list (in the Loader) input processors will be appended to an internal list (in the Loader)

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@ -212,8 +212,6 @@ Where:
FTP server storage FTP server storage
------------------ ------------------
.. versionadded:: 2.0
:setting:`FILES_STORE` and :setting:`IMAGES_STORE` can point to an FTP server. :setting:`FILES_STORE` and :setting:`IMAGES_STORE` can point to an FTP server.
Scrapy will automatically upload the files to the server. Scrapy will automatically upload the files to the server.
@ -547,9 +545,6 @@ See here the methods that you can override in your custom Files Pipeline:
By default the :meth:`file_path` method returns By default the :meth:`file_path` method returns
``full/<request URL hash>.<extension>``. ``full/<request URL hash>.<extension>``.
.. versionadded:: 2.4
The *item* parameter.
.. method:: FilesPipeline.get_media_requests(item, info) .. method:: FilesPipeline.get_media_requests(item, info)
As seen on the workflow, the pipeline will get the URLs of the images to As seen on the workflow, the pipeline will get the URLs of the images to
@ -590,8 +585,6 @@ See here the methods that you can override in your custom Files Pipeline:
* ``status`` - the file status indication. * ``status`` - the file status indication.
.. versionadded:: 2.2
It can be one of the following: It can be one of the following:
* ``downloaded`` - file was downloaded. * ``downloaded`` - file was downloaded.
@ -705,9 +698,6 @@ See here the methods that you can override in your custom Images Pipeline:
By default the :meth:`file_path` method returns By default the :meth:`file_path` method returns
``full/<request URL hash>.<extension>``. ``full/<request URL hash>.<extension>``.
.. versionadded:: 2.4
The *item* parameter.
.. method:: ImagesPipeline.thumb_path(self, request, thumb_id, response=None, info=None, *, item=None) .. method:: ImagesPipeline.thumb_path(self, request, thumb_id, response=None, info=None, *, item=None)
This method is called for every item of :setting:`IMAGES_THUMBS` per downloaded item. It returns the This method is called for every item of :setting:`IMAGES_THUMBS` per downloaded item. It returns the

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@ -32,10 +32,6 @@ Request objects
:type url: str :type url: str
:param callback: sets :attr:`callback`, defaults to ``None``. :param callback: sets :attr:`callback`, defaults to ``None``.
.. versionchanged:: 2.0
The *callback* parameter is no longer required when the *errback*
parameter is specified.
:type callback: Callable[Concatenate[Response, ...], Any] | None :type callback: Callable[Concatenate[Response, ...], Any] | None
:param method: the HTTP method of this request. Defaults to ``'GET'``. :param method: the HTTP method of this request. Defaults to ``'GET'``.
@ -116,10 +112,6 @@ Request objects
:class:`scrapy.Request.cookies <scrapy.Request>` parameter. This is a known :class:`scrapy.Request.cookies <scrapy.Request>` parameter. This is a known
current limitation that is being worked on. current limitation that is being worked on.
.. versionadded:: 2.6.0
Cookie values that are :class:`bool`, :class:`float` or :class:`int`
are casted to :class:`str`.
:type cookies: dict or list :type cookies: dict or list
:param encoding: the encoding of this request (defaults to ``'utf-8'``). :param encoding: the encoding of this request (defaults to ``'utf-8'``).
@ -134,10 +126,6 @@ Request objects
:type dont_filter: bool :type dont_filter: bool
:param errback: sets :attr:`errback`, defaults to ``None``. :param errback: sets :attr:`errback`, defaults to ``None``.
.. versionchanged:: 2.0
The *callback* parameter is no longer required when the *errback*
parameter is specified.
:type errback: Callable[[Failure], Any] | None :type errback: Callable[[Failure], Any] | None
:param flags: Flags sent to the request, can be used for logging or similar purposes. :param flags: Flags sent to the request, can be used for logging or similar purposes.
@ -448,8 +436,6 @@ To change how request fingerprints are built for your requests, use the
REQUEST_FINGERPRINTER_CLASS REQUEST_FINGERPRINTER_CLASS
~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. versionadded:: 2.7
Default: :class:`scrapy.utils.request.RequestFingerprinter` Default: :class:`scrapy.utils.request.RequestFingerprinter`
A :ref:`request fingerprinter class <custom-request-fingerprinter>` or its A :ref:`request fingerprinter class <custom-request-fingerprinter>` or its
@ -988,15 +974,6 @@ Response objects
For instance: "HTTP/1.0", "HTTP/1.1", "h2" For instance: "HTTP/1.0", "HTTP/1.1", "h2"
:type protocol: :class:`str` :type protocol: :class:`str`
.. versionadded:: 2.0.0
The ``certificate`` parameter.
.. versionadded:: 2.1.0
The ``ip_address`` parameter.
.. versionadded:: 2.5.0
The ``protocol`` parameter.
.. attribute:: Response.url .. attribute:: Response.url
A string containing the URL of the response. A string containing the URL of the response.
@ -1062,8 +1039,6 @@ Response objects
.. attribute:: Response.cb_kwargs .. attribute:: Response.cb_kwargs
.. versionadded:: 2.0
A shortcut to the :attr:`~scrapy.Request.cb_kwargs` attribute of the A shortcut to the :attr:`~scrapy.Request.cb_kwargs` attribute of the
:attr:`Response.request` object (i.e. ``self.request.cb_kwargs``). :attr:`Response.request` object (i.e. ``self.request.cb_kwargs``).
@ -1082,8 +1057,6 @@ Response objects
.. attribute:: Response.certificate .. attribute:: Response.certificate
.. versionadded:: 2.0.0
A :class:`twisted.internet.ssl.Certificate` object representing A :class:`twisted.internet.ssl.Certificate` object representing
the server's SSL certificate. the server's SSL certificate.
@ -1091,8 +1064,6 @@ Response objects
.. attribute:: Response.ip_address .. attribute:: Response.ip_address
.. versionadded:: 2.1.0
The IP address of the server from which the Response originated. The IP address of the server from which the Response originated.
This attribute is currently only populated by the HTTP 1.1 download This attribute is currently only populated by the HTTP 1.1 download
@ -1101,8 +1072,6 @@ Response objects
.. attribute:: Response.protocol .. attribute:: Response.protocol
.. versionadded:: 2.5.0
The protocol that was used to download the response. The protocol that was used to download the response.
For instance: "HTTP/1.0", "HTTP/1.1" For instance: "HTTP/1.0", "HTTP/1.1"

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@ -182,8 +182,6 @@ Setting values must be :ref:`picklable <pickle-picklable>`.
Import paths and classes Import paths and classes
======================== ========================
.. versionadded:: 2.4.0
When a setting references a callable object to be imported by Scrapy, such as a When a setting references a callable object to be imported by Scrapy, such as a
class or a function, there are two different ways you can specify that object: class or a function, there are two different ways you can specify that object:
@ -667,8 +665,6 @@ DNS in-memory cache size.
DNS_RESOLVER DNS_RESOLVER
------------ ------------
.. versionadded:: 2.0
Default: ``'scrapy.resolver.CachingThreadedResolver'`` Default: ``'scrapy.resolver.CachingThreadedResolver'``
The class to be used to resolve DNS names. The default ``scrapy.resolver.CachingThreadedResolver`` The class to be used to resolve DNS names. The default ``scrapy.resolver.CachingThreadedResolver``
@ -1798,8 +1794,6 @@ For available choices, see :setting:`SCHEDULER_MEMORY_QUEUE`.
SCRAPER_SLOT_MAX_ACTIVE_SIZE SCRAPER_SLOT_MAX_ACTIVE_SIZE
---------------------------- ----------------------------
.. versionadded:: 2.0
Default: ``5_000_000`` Default: ``5_000_000``
Soft limit (in bytes) for response data being processed. Soft limit (in bytes) for response data being processed.
@ -1974,8 +1968,6 @@ in the ``project`` subdirectory.
TWISTED_REACTOR TWISTED_REACTOR
--------------- ---------------
.. versionadded:: 2.0
Default: ``"twisted.internet.asyncioreactor.AsyncioSelectorReactor"`` Default: ``"twisted.internet.asyncioreactor.AsyncioSelectorReactor"``
Import path of a given :mod:`~twisted.internet.reactor`. Import path of a given :mod:`~twisted.internet.reactor`.
@ -2068,11 +2060,6 @@ If this setting is set ``None``, Scrapy will use the existing reactor if one is
already installed, or install the default reactor defined by Twisted for the already installed, or install the default reactor defined by Twisted for the
current platform. current platform.
.. versionchanged:: 2.7
The :command:`startproject` command now sets this setting to
``twisted.internet.asyncioreactor.AsyncioSelectorReactor`` in the generated
``settings.py`` file.
.. versionchanged:: 2.13 .. versionchanged:: 2.13
The default value was changed from ``None`` to The default value was changed from ``None`` to
``"twisted.internet.asyncioreactor.AsyncioSelectorReactor"``. ``"twisted.internet.asyncioreactor.AsyncioSelectorReactor"``.

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@ -423,8 +423,6 @@ request_left_downloader
.. signal:: request_left_downloader .. signal:: request_left_downloader
.. function:: request_left_downloader(request, spider) .. function:: request_left_downloader(request, spider)
.. versionadded:: 2.0
Sent when a :class:`~scrapy.Request` leaves the downloader, even in case of Sent when a :class:`~scrapy.Request` leaves the downloader, even in case of
failure. failure.
@ -442,8 +440,6 @@ bytes_received
.. signal:: bytes_received .. signal:: bytes_received
.. function:: bytes_received(data, request, spider) .. function:: bytes_received(data, request, spider)
.. versionadded:: 2.2
Sent by the HTTP 1.1 and S3 download handlers when a group of bytes is Sent by the HTTP 1.1 and S3 download handlers when a group of bytes is
received for a specific request. This signal might be fired multiple received for a specific request. This signal might be fired multiple
times for the same request, with partial data each time. For instance, times for the same request, with partial data each time. For instance,
@ -472,8 +468,6 @@ headers_received
.. signal:: headers_received .. signal:: headers_received
.. function:: headers_received(headers, body_length, request, spider) .. function:: headers_received(headers, body_length, request, spider)
.. versionadded:: 2.5
Sent by the HTTP 1.1 and S3 download handlers when the response headers are Sent by the HTTP 1.1 and S3 download handlers when the response headers are
available for a given request, before downloading any additional content. available for a given request, before downloading any additional content.

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@ -125,10 +125,6 @@ one or more of these methods:
:class:`~scrapy.Request` objects and :ref:`item objects :class:`~scrapy.Request` objects and :ref:`item objects
<topics-items>`. <topics-items>`.
.. versionchanged:: 2.7
This method may be defined as an :term:`asynchronous generator`, in
which case ``result`` is an :term:`asynchronous iterable`.
Consider defining this method as an :term:`asynchronous generator`, Consider defining this method as an :term:`asynchronous generator`,
which will be a requirement in a future version of Scrapy. However, if which will be a requirement in a future version of Scrapy. However, if
you plan on sharing your spider middleware with other people, consider you plan on sharing your spider middleware with other people, consider
@ -148,8 +144,6 @@ one or more of these methods:
.. method:: process_spider_output_async(response, result) .. method:: process_spider_output_async(response, result)
:async: :async:
.. versionadded:: 2.7
If defined, this method must be an :term:`asynchronous generator`, If defined, this method must be an :term:`asynchronous generator`,
which will be called instead of :meth:`process_spider_output` if which will be called instead of :meth:`process_spider_output` if
``result`` is an :term:`asynchronous iterable`. ``result`` is an :term:`asynchronous iterable`.

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@ -547,9 +547,6 @@ Crawling rules
callbacks for new requests when writing :class:`CrawlSpider`-based spiders; callbacks for new requests when writing :class:`CrawlSpider`-based spiders;
unexpected behaviour can occur otherwise. unexpected behaviour can occur otherwise.
.. versionadded:: 2.0
The *errback* parameter.
CrawlSpider example CrawlSpider example
~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~