Update werkzeug to 2.0.1

[pyup-bot]

This PR updates werkzeug from 0.14.1 to 2.0.1.

Changelog

2.0.1

-------------

Released 2021-05-17

-   Fix type annotation for ``send_file`` ``max_age`` callable. Don't
 pass ``pathlib.Path`` to ``max_age``. :issue:`2119`
-   Mark top-level names as exported so type checking understands
 imports in user projects. :issue:`2122`
-   Fix some types that weren't available in Python 3.6.0. :issue:`2123`
-   ``cached_property`` is generic over its return type, properties
 decorated with it report the correct type. :issue:`2113`
-   Fix multipart parsing bug when boundary contains special regex
 characters. :issue:`2125`
-   Type checking understands that calling ``headers.get`` with a string
 default will always return a string. :issue:`2128`
-   If ``HTTPException.description`` is not a string,
 ``get_description`` will convert it to a string. :issue:`2115`

2.0.0

-------------

Released 2021-05-11

-   Drop support for Python 2 and 3.5. :pr:`1693`
-   Deprecate :func:`utils.format_string`, use :class:`string.Template`
 instead. :issue:`1756`
-   Deprecate :func:`utils.bind_arguments` and
 :func:`utils.validate_arguments`, use :meth:`Signature.bind` and
 :func:`inspect.signature` instead. :issue:`1757`
-   Deprecate :class:`utils.HTMLBuilder`. :issue:`1761`
-   Deprecate :func:`utils.escape` and :func:`utils.unescape`, use
 MarkupSafe instead. :issue:`1758`
-   Deprecate the undocumented ``python -m werkzeug.serving`` CLI.
 :issue:`1834`
-   Deprecate the ``environ["werkzeug.server.shutdown"]`` function
 that is available when running the development server. :issue:`1752`
-   Deprecate the ``useragents`` module and the built-in user agent
 parser. Use a dedicated parser library instead by subclassing
 ``user_agent.UserAgent`` and setting ``Request.user_agent_class``.
 :issue:`2078`
-   Remove the unused, internal ``posixemulation`` module. :issue:`1759`
-   All ``datetime`` values are timezone-aware with
 ``tzinfo=timezone.utc``. This applies to anything using
 ``http.parse_date``: ``Request.date``, ``.if_modified_since``,
 ``.if_unmodified_since``; ``Response.date``, ``.expires``,
 ``.last_modified``, ``.retry_after``; ``parse_if_range_header``, and
 ``IfRange.date``. When comparing values, the other values must also
 be aware, or these values must be made naive. When passing
 parameters or setting attributes, naive values are still assumed to
 be in UTC. :pr:`2040`
-   Merge all request and response wrapper mixin code into single
 ``Request`` and ``Response`` classes. Using the mixin classes is no
 longer necessary and will show a deprecation warning. Checking
 ``isinstance`` or ``issubclass`` against ``BaseRequest`` and
 ``BaseResponse`` will show a deprecation warning and check against
 ``Request`` or ``Response`` instead. :issue:`1963`
-   JSON support no longer uses simplejson if it's installed. To use
 another JSON module, override ``Request.json_module`` and
 ``Response.json_module``. :pr:`1766`
-   ``Response.get_json()`` no longer caches the result, and the
 ``cache`` parameter is removed. :issue:`1698`
-   ``Response.freeze()`` generates an ``ETag`` header if one is not
 set. The ``no_etag`` parameter (which usually wasn't visible
 anyway) is no longer used. :issue:`1963`
-   Add a ``url_scheme`` argument to :meth:`~routing.MapAdapter.build`
 to override the bound scheme. :pr:`1721`
-   Passing an empty list as a query string parameter to ``build()``
 won't append an unnecessary ``?``. Also drop any number of ``None``
 items in a list. :issue:`1992`
-   When passing a ``Headers`` object to a test client method or
 ``EnvironBuilder``, multiple values for a key are joined into one
 comma separated value. This matches the HTTP spec on multi-value
 headers. :issue:`1655`
-   Setting ``Response.status`` and ``status_code`` uses identical
 parsing and error checking. :issue:`1658`, :pr:`1728`
-   ``MethodNotAllowed`` and ``RequestedRangeNotSatisfiable`` take a
 ``response`` kwarg, consistent with other HTTP errors. :pr:`1748`
-   The response generated by :exc:`~exceptions.Unauthorized` produces
 one ``WWW-Authenticate`` header per value in ``www_authenticate``,
 rather than joining them into a single value, to improve
 interoperability with browsers and other clients. :pr:`1755`
-   If ``parse_authorization_header`` can't decode the header value, it
 returns ``None`` instead of raising a ``UnicodeDecodeError``.
 :issue:`1816`
-   The debugger no longer uses jQuery. :issue:`1807`
-   The test client includes the query string in ``REQUEST_URI`` and
 ``RAW_URI``. :issue:`1781`
-   Switch the parameter order of ``default_stream_factory`` to match
 the order used when calling it. :pr:`1085`
-   Add ``send_file`` function to generate a response that serves a
 file. Adapted from Flask's implementation. :issue:`265`, :pr:`1850`
-   Add ``send_from_directory`` function to safely serve an untrusted
 path within a trusted directory. Adapted from Flask's
 implementation. :issue:`1880`
-   ``send_file`` takes ``download_name``, which is passed even if
 ``as_attachment=False`` by using ``Content-Disposition: inline``.
 ``download_name`` replaces Flask's ``attachment_filename``.
 :issue:`1869`
-   ``send_file`` sets ``conditional=True`` and ``max_age=None`` by
 default. ``Cache-Control`` is set to ``no-cache`` if ``max_age`` is
 not set, otherwise ``public``. This tells browsers to validate
 conditional requests instead of using a timed cache.
 ``max_age=None`` replaces Flask's ``cache_timeout=43200``.
 :issue:`1882`
-   ``send_file`` can be called with ``etag="string"`` to set a custom
 ETag instead of generating one. ``etag`` replaces Flask's
 ``add_etags``. :issue:`1868`
-   ``send_file`` sets the ``Content-Encoding`` header if an encoding is
 returned when guessing ``mimetype`` from ``download_name``.
 :pr:`3896`
-   Update the defaults used by ``generate_password_hash``. Increase
 PBKDF2 iterations to 260000 from 150000. Increase salt length to 16
 from 8. Use ``secrets`` module to generate salt. :pr:`1935`
-   The reloader doesn't crash if ``sys.stdin`` is somehow ``None``.
 :pr:`1915`
-   Add arguments to ``delete_cookie`` to match ``set_cookie`` and the
 attributes modern browsers expect. :pr:`1889`
-   ``utils.cookie_date`` is deprecated, use ``utils.http_date``
 instead. The value for ``Set-Cookie expires`` is no longer "-"
 delimited. :pr:`2040`
-   Use ``request.headers`` instead of ``request.environ`` to look up
 header attributes. :pr:`1808`
-   The test ``Client`` request methods (``client.get``, etc.) always
 return an instance of ``TestResponse``. In addition to the normal
 behavior of ``Response``, this class provides ``request`` with the
 request that produced the response, and ``history`` to track
 intermediate responses when ``follow_redirects`` is used.
 :issue:`763, 1894`
-   The test ``Client`` request methods takes an ``auth`` parameter to
 add an ``Authorization`` header. It can be an ``Authorization``
 object or a ``(username, password)`` tuple for ``Basic`` auth.
 :pr:`1809`
-   Calling ``response.close()`` on a response from the test ``Client``
 will close the request input stream. This matches file behavior
 and can prevent a ``ResourceWarning`` in some cases. :issue:`1785`
-   ``EnvironBuilder.from_environ`` decodes values encoded for WSGI, to
 avoid double encoding the new values. :pr:`1959`
-   The default stat reloader will watch Python files under
 non-system/virtualenv ``sys.path`` entries, which should contain
 most user code. It will also watch all Python files under
 directories given in ``extra_files``. :pr:`1945`
-   The reloader ignores ``__pycache__`` directories again. :pr:`1945`
-   ``run_simple`` takes ``exclude_patterns`` a list of ``fnmatch``
 patterns that will not be scanned by the reloader. :issue:`1333`
-   Cookie names are no longer unquoted. This was against :rfc:`6265`
 and potentially allowed setting ``__Secure`` prefixed cookies.
 :pr:`1965`
-   Fix some word matches for user agent platform when the word can be a
 substring. :issue:`1923`
-   The development server logs ignored SSL errors. :pr:`1967`
-   Temporary files for form data are opened in ``rb+`` instead of
 ``wb+`` mode for better compatibility with some libraries.
 :issue:`1961`
-   Use SHA-1 instead of MD5 for generating ETags and the debugger pin,
 and in some tests. MD5 is not available in some environments, such
 as FIPS 140. This may invalidate some caches since the ETag will be
 different. :issue:`1897`
-   Add ``Cross-Origin-Opener-Policy`` and
 ``Cross-Origin-Embedder-Policy`` response header properties.
 :pr:`2008`
-   ``run_simple`` tries to show a valid IP address when binding to all
 addresses, instead of ``0.0.0.0`` or ``::``. It also warns about not
 running the development server in production in this case.
 :issue:`1964`
-   Colors in the development server log are displayed if Colorama is
 installed on Windows. For all platforms, style support no longer
 requires Click. :issue:`1832`
-   A range request for an empty file (or other data with length 0) will
 return a 200 response with the empty file instead of a 416 error.
 :issue:`1937`
-   New sans-IO base classes for ``Request`` and ``Response`` have been
 extracted to contain all the behavior that is not WSGI or IO
 dependent. These are not a public API, they are part of an ongoing
 refactor to let ASGI frameworks use Werkzeug. :pr:`2005`
-   Parsing ``multipart/form-data`` has been refactored to use sans-io
 patterns. This should also make parsing forms with large binary file
 uploads significantly faster. :issue:`1788, 875`
-   ``LocalProxy`` matches the current Python data model special
 methods, including all r-ops, in-place ops, and async. ``__class__``
 is proxied, so the proxy will look like the object in more cases,
 including ``isinstance``. Use ``issubclass(type(obj), LocalProxy)``
 to check if an object is actually a proxy. :issue:`1754`
-   ``Local`` uses ``ContextVar`` on Python 3.7+ instead of
 ``threading.local``. :pr:`1778`
-   ``request.values`` does not include ``form`` for GET requests (even
 though GET bodies are undefined). This prevents bad caching proxies
 from caching form data instead of query strings. :pr:`2037`
-   The development server adds the underlying socket to ``environ`` as
 ``werkzeug.socket``. This is non-standard and specific to the dev
 server, other servers may expose this under their own key. It is
 useful for handling a WebSocket upgrade request. :issue:`2052`
-   URL matching assumes ``websocket=True`` mode for WebSocket upgrade
 requests. :issue:`2052`
-   Updated ``UserAgentParser`` to handle more cases. :issue:`1971`
-   ``werzeug.DechunkedInput.readinto`` will not read beyond the size of
 the buffer. :issue:`2021`
-   Fix connection reset when exceeding max content size. :pr:`2051`
-   ``pbkdf2_hex``, ``pbkdf2_bin``, and ``safe_str_cmp`` are deprecated.
 ``hashlib`` and ``hmac`` provide equivalents. :pr:`2083`
-   ``invalidate_cached_property`` is deprecated. Use ``del obj.name``
 instead. :pr:`2084`
-   ``Href`` is deprecated. Use ``werkzeug.routing`` instead.
 :pr:`2085`
-   ``Request.disable_data_descriptor`` is deprecated. Create the
 request with ``shallow=True`` instead. :pr:`2085`
-   ``HTTPException.wrap`` is deprecated. Create a subclass manually
 instead. :pr:`2085`

1.0.1

-------------

Released 2020-03-31

-   Make the argument to ``RequestRedirect.get_response`` optional.
 :issue:`1718`
-   Only allow a single access control allow origin value. :pr:`1723`
-   Fix crash when trying to parse a non-existent Content Security
 Policy header. :pr:`1731`
-   ``http_date`` zero fills years < 1000 to always output four digits.
 :issue:`1739`
-   Fix missing local variables in interactive debugger console.
 :issue:`1746`
-   Fix passing file-like objects like ``io.BytesIO`` to
 ``FileStorage.save``. :issue:`1733`

1.0.0

-------------

Released 2020-02-06

-   Drop support for Python 3.4. (:issue:`1478`)
-   Remove code that issued deprecation warnings in version 0.15.
 (:issue:`1477`)
-   Remove most top-level attributes provided by the ``werkzeug``
 module in favor of direct imports. For example, instead of
 ``import werkzeug; werkzeug.url_quote``, do
 ``from werkzeug.urls import url_quote``. Install version 0.16 first
 to see deprecation warnings while upgrading. :issue:`2`, :pr:`1640`
-   Added ``utils.invalidate_cached_property()`` to invalidate cached
 properties. (:pr:`1474`)
-   Directive keys for the ``Set-Cookie`` response header are not
 ignored when parsing the ``Cookie`` request header. This allows
 cookies with names such as "expires" and "version". (:issue:`1495`)
-   Request cookies are parsed into a ``MultiDict`` to capture all
 values for cookies with the same key. ``cookies[key]`` returns the
 first value rather than the last. Use ``cookies.getlist(key)`` to
 get all values. ``parse_cookie`` also defaults to a ``MultiDict``.
 :issue:`1562`, :pr:`1458`
-   Add ``charset=utf-8`` to an HTTP exception response's
 ``CONTENT_TYPE`` header. (:pr:`1526`)
-   The interactive debugger handles outer variables in nested scopes
 such as lambdas and comprehensions. :issue:`913`, :issue:`1037`,
 :pr:`1532`
-   The user agent for Opera 60 on Mac is correctly reported as
 "opera" instead of "chrome". :issue:`1556`
-   The platform for Crosswalk on Android is correctly reported as
 "android" instead of "chromeos". (:pr:`1572`)
-   Issue a warning when the current server name does not match the
 configured server name. :issue:`760`
-   A configured server name with the default port for a scheme will
 match the current server name without the port if the current scheme
 matches. :pr:`1584`
-   :exc:`~exceptions.InternalServerError` has a ``original_exception``
 attribute that frameworks can use to track the original cause of the
 error. :pr:`1590`
-   Headers are tested for equality independent of the header key case,
 such that ``X-Foo`` is the same as ``x-foo``. :pr:`1605`
-   :meth:`http.dump_cookie` accepts ``'None'`` as a value for
 ``samesite``. :issue:`1549`
-   :meth:`~test.Client.set_cookie` accepts a ``samesite`` argument.
 :pr:`1705`
-   Support the Content Security Policy header through the
 `Response.content_security_policy` data structure. :pr:`1617`
-   ``LanguageAccept`` will fall back to matching "en" for "en-US" or
 "en-US" for "en" to better support clients or translations that
 only match at the primary language tag. :issue:`450`, :pr:`1507`
-   ``MIMEAccept`` uses MIME parameters for specificity when matching.
 :issue:`458`, :pr:`1574`
-   If the development server is started with an ``SSLContext``
 configured to verify client certificates, the certificate in PEM
 format will be available as ``environ["SSL_CLIENT_CERT"]``.
 :pr:`1469`
-   ``is_resource_modified`` will run for methods other than ``GET`` and
 ``HEAD``, rather than always returning ``False``. :issue:`409`
-   ``SharedDataMiddleware`` returns 404 rather than 500 when trying to
 access a directory instead of a file with the package loader. The
 dependency on setuptools and pkg_resources is removed.
 :issue:`1599`
-   Add a ``response.cache_control.immutable`` flag. Keep in mind that
 browser support for this ``Cache-Control`` header option is still
 experimental and may not be implemented. :issue:`1185`
-   Optional request log highlighting with the development server is
 handled by Click instead of termcolor. :issue:`1235`
-   Optional ad-hoc TLS support for the development server is handled
 by cryptography instead of pyOpenSSL. :pr:`1555`
-   ``FileStorage.save()`` supports ``pathlib`` and :pep:`519`
 ``PathLike`` objects. :issue:`1653`
-   The debugger security pin is unique in containers managed by Podman.
 :issue:`1661`
-   Building a URL when ``host_matching`` is enabled takes into account
 the current host when there are duplicate endpoints with different
 hosts. :issue:`488`
-   The ``429 TooManyRequests`` and ``503 ServiceUnavailable`` HTTP
 exceptions takes a ``retry_after`` parameter to set the
 ``Retry-After`` header. :issue:`1657`
-   ``Map`` and ``Rule`` have a ``merge_slashes`` option to collapse
 multiple slashes into one, similar to how many HTTP servers behave.
 This is enabled by default. :pr:`1286, 1694`
-   Add HTTP 103, 208, 306, 425, 506, 508, and 511 to the list of status
 codes. :pr:`1678`
-   Add ``update``, ``setlist``, and ``setlistdefault`` methods to the
 ``Headers`` data structure. ``extend`` method can take ``MultiDict``
 and kwargs. :pr:`1687, 1697`
-   The development server accepts paths that start with two slashes,
 rather than stripping off the first path segment. :issue:`491`
-   Add access control (Cross Origin Request Sharing, CORS) header
 properties to the ``Request`` and ``Response`` wrappers. :pr:`1699`
-   ``Accept`` values are no longer ordered alphabetically for equal
 quality tags. Instead the initial order is preserved. :issue:`1686`
-   Added ``Map.lock_class`` attribute for alternative
 implementations. :pr:`1702`
-   Support matching and building WebSocket rules in the routing system,
 for use by async frameworks. :pr:`1709`
-   Range requests that span an entire file respond with 206 instead of
 200, to be more compliant with :rfc:`7233`. This may help serving
 media to older browsers. :issue:`410, 1704`
-   The :class:`~middleware.shared_data.SharedDataMiddleware` default
 ``fallback_mimetype`` is ``application/octet-stream``. If a filename
 looks like a text mimetype, the ``utf-8`` charset is added to it.
 This matches the behavior of :class:`~wrappers.BaseResponse` and
 Flask's ``send_file()``. :issue:`1689`

0.16.1

--------------

Released 2020-01-27

-   Fix import location in deprecation messages for subpackages.
 :issue:`1663`
-   Fix an SSL error on Python 3.5 when the dev server responds with no
 content. :issue:`1659`

0.16.0

--------------

Released 2019-09-19

-   Deprecate most top-level attributes provided by the ``werkzeug``
 module in favor of direct imports. The deprecated imports will be
 removed in version 1.0.

 For example, instead of ``import werkzeug; werkzeug.url_quote``, do
 ``from werkzeug.urls import url_quote``. A deprecation warning will
 show the correct import to use. ``werkzeug.exceptions`` and
 ``werkzeug.routing`` should also be imported instead of accessed,
 but for technical reasons can't show a warning.

 :issue:`2`, :pr:`1640`

0.15.6

--------------

Released 2019-09-04

-   Work around a bug in pip that caused the reloader to fail on
 Windows when the script was an entry point. This fixes the issue
 with Flask's `flask run` command failing with "No module named
 Scripts\flask". :issue:`1614`
-   ``ProxyFix`` trusts the ``X-Forwarded-Proto`` header by default.
 :issue:`1630`
-   The deprecated ``num_proxies`` argument to ``ProxyFix`` sets
 ``x_for``, ``x_proto``, and ``x_host`` to match 0.14 behavior. This
 is intended to make intermediate upgrades less disruptive, but the
 argument will still be removed in 1.0. :issue:`1630`

0.15.5

--------------

Released 2019-07-17

-   Fix a ``TypeError`` due to changes to ``ast.Module`` in Python 3.8.
 :issue:`1551`
-   Fix a C assertion failure in debug builds of some Python 2.7
 releases. :issue:`1553`
-   :class:`~exceptions.BadRequestKeyError` adds the ``KeyError``
 message to the description if ``e.show_exception`` is set to
 ``True``. This is a more secure default than the original 0.15.0
 behavior and makes it easier to control without losing information.
 :pr:`1592`
-   Upgrade the debugger to jQuery 3.4.1. :issue:`1581`
-   Work around an issue in some external debuggers that caused the
 reloader to fail. :issue:`1607`
-   Work around an issue where the reloader couldn't introspect a
 setuptools script installed as an egg. :issue:`1600`
-   The reloader will use ``sys.executable`` even if the script is
 marked executable, reverting a behavior intended for NixOS
 introduced in 0.15. The reloader should no longer cause
 ``OSError: [Errno 8] Exec format error``. :issue:`1482`,
 :issue:`1580`
-   ``SharedDataMiddleware`` safely handles paths with Windows drive
 names. :issue:`1589`

0.15.4

--------------

Released 2019-05-14

-   Fix a ``SyntaxError`` on Python 2.7.5. (:issue:`1544`)

0.15.3

--------------

Released 2019-05-14

-   Properly handle multi-line header folding in development server in
 Python 2.7. (:issue:`1080`)
-   Restore the ``response`` argument to :exc:`~exceptions.Unauthorized`.
 (:pr:`1527`)
-   :exc:`~exceptions.Unauthorized` doesn't add the ``WWW-Authenticate``
 header if ``www_authenticate`` is not given. (:issue:`1516`)
-   The default URL converter correctly encodes bytes to string rather
 than representing them with ``b''``. (:issue:`1502`)
-   Fix the filename format string in
 :class:`~middleware.profiler.ProfilerMiddleware` to correctly handle
 float values. (:issue:`1511`)
-   Update :class:`~middleware.lint.LintMiddleware` to work on Python 3.
 (:issue:`1510`)
-   The debugger detects cycles in chained exceptions and does not time
 out in that case. (:issue:`1536`)
-   When running the development server in Docker, the debugger security
 pin is now unique per container.

0.15.2

--------------

Released 2019-04-02

-   ``Rule`` code generation uses a filename that coverage will ignore.
 The previous value, "generated", was causing coverage to fail.
 (:issue:`1487`)
-   The test client removes the cookie header if there are no persisted
 cookies. This fixes an issue introduced in 0.15.0 where the cookies
 from the original request were used for redirects, causing functions
 such as logout to fail. (:issue:`1491`)
-   The test client copies the environ before passing it to the app, to
 prevent in-place modifications from affecting redirect requests.
 (:issue:`1498`)
-   The ``"werkzeug"`` logger only adds a handler if there is no handler
 configured for its level in the logging chain. This avoids double
 logging if other code configures logging first. (:issue:`1492`)

0.15.1

--------------

Released 2019-03-21

-   :exc:`~exceptions.Unauthorized` takes ``description`` as the first
 argument, restoring previous behavior. The new ``www_authenticate``
 argument is listed second. (:issue:`1483`)

0.15.0

--------------

Released 2019-03-19

-   Building URLs is ~7x faster. Each :class:`~routing.Rule` compiles
 an optimized function for building itself. (:pr:`1281`)
-   :meth:`MapAdapter.build() <routing.MapAdapter.build>` can be passed
 a :class:`~datastructures.MultiDict` to represent multiple values
 for a key. It already did this when passing a dict with a list
 value. (:pr:`724`)
-   ``path_info`` defaults to ``'/'`` for
 :meth:`Map.bind() <routing.Map.bind>`. (:issue:`740`, :pr:`768`,
 :pr:`1316`)
-   Change ``RequestRedirect`` code from 301 to 308, preserving the verb
 and request body (form data) during redirect. (:pr:`1342`)
-   ``int`` and ``float`` converters in URL rules will handle negative
 values if passed the ``signed=True`` parameter. For example,
 ``/jump/<int(signed=True):count>``. (:pr:`1355`)
-   ``Location`` autocorrection in :func:`Response.get_wsgi_headers()
 <wrappers.BaseResponse.get_wsgi_headers>` is relative to the current
 path rather than the root path. (:issue:`693`, :pr:`718`,
 :pr:`1315`)
-   412 responses once again include entity headers and an error message
 in the body. They were originally omitted when implementing
 ``If-Match`` (:pr:`1233`), but the spec doesn't seem to disallow it.
 (:issue:`1231`, :pr:`1255`)
-   The Content-Length header is removed for 1xx and 204 responses. This
 fixes a previous change where no body would be sent, but the header
 would still be present. The new behavior matches RFC 7230.
 (:pr:`1294`)
-   :class:`~exceptions.Unauthorized` takes a ``www_authenticate``
 parameter to set the ``WWW-Authenticate`` header for the response,
 which is technically required for a valid 401 response.
 (:issue:`772`, :pr:`795`)
-   Add support for status code 424 :exc:`~exceptions.FailedDependency`.
 (:pr:`1358`)
-   :func:`http.parse_cookie` ignores empty segments rather than
 producing a cookie with no key or value. (:issue:`1245`, :pr:`1301`)
-   :func:`~http.parse_authorization_header` (and
 :class:`~datastructures.Authorization`,
 :attr:`~wrappers.Request.authorization`) treats the authorization
 header as UTF-8. On Python 2, basic auth username and password are
 ``unicode``. (:pr:`1325`)
-   :func:`~http.parse_options_header` understands :rfc:`2231` parameter
 continuations. (:pr:`1417`)
-   :func:`~urls.uri_to_iri` does not unquote ASCII characters in the
 unreserved class, such as space, and leaves invalid bytes quoted
 when decoding. :func:`~urls.iri_to_uri` does not quote reserved
 characters. See :rfc:`3987` for these character classes.
 (:pr:`1433`)
-   ``get_content_type`` appends a charset for any mimetype that ends
 with ``+xml``, not just those that start with ``application/``.
 Known text types such as ``application/javascript`` are also given
 charsets. (:pr:`1439`)
-   Clean up ``werkzeug.security`` module, remove outdated hashlib
 support. (:pr:`1282`)
-   In :func:`~security.generate_password_hash`, PBKDF2 uses 150000
 iterations by default, increased from 50000. (:pr:`1377`)
-   :class:`~wsgi.ClosingIterator` calls ``close`` on the wrapped
 *iterable*, not the internal iterator. This doesn't affect objects
 where ``__iter__`` returned ``self``. For other objects, the method
 was not called before. (:issue:`1259`, :pr:`1260`)
-   Bytes may be used as keys in :class:`~datastructures.Headers`, they
 will be decoded as Latin-1 like values are. (:pr:`1346`)
-   :class:`~datastructures.Range` validates that list of range tuples
 passed to it would produce a valid ``Range`` header. (:pr:`1412`)
-   :class:`~datastructures.FileStorage` looks up attributes on
 ``stream._file`` if they don't exist on ``stream``, working around
 an issue where :func:`tempfile.SpooledTemporaryFile` didn't
 implement all of :class:`io.IOBase`. See
 https://github.com/python/cpython/pull/3249. (:pr:`1409`)
-   :class:`CombinedMultiDict.copy() <datastructures.CombinedMultiDict>`
 returns a shallow mutable copy as a
 :class:`~datastructures.MultiDict`. The copy no longer reflects
 changes to the combined dicts, but is more generally useful.
 (:pr:`1420`)
-   The version of jQuery used by the debugger is updated to 3.3.1.
 (:pr:`1390`)
-   The debugger correctly renders long ``markupsafe.Markup`` instances.
 (:pr:`1393`)
-   The debugger can serve resources when Werkzeug is installed as a
 zip file. ``DebuggedApplication.get_resource`` uses
 ``pkgutil.get_data``. (:pr:`1401`)
-   The debugger and server log support Python 3's chained exceptions.
 (:pr:`1396`)
-   The interactive debugger highlights frames that come from user code
 to make them easy to pick out in a long stack trace. Note that if an
 env was created with virtualenv instead of venv, the debugger may
 incorrectly classify some frames. (:pr:`1421`)
-   Clicking the error message at the top of the interactive debugger
 will jump down to the bottom of the traceback. (:pr:`1422`)
-   When generating a PIN, the debugger will ignore a ``KeyError``
 raised when the current UID doesn't have an associated username,
 which can happen in Docker. (:issue:`1471`)
-   :class:`~exceptions.BadRequestKeyError` adds the ``KeyError``
 message to the description, making it clearer what caused the 400
 error. Frameworks like Flask can omit this information in production
 by setting ``e.args = ()``. (:pr:`1395`)
-   If a nested ``ImportError`` occurs from :func:`~utils.import_string`
 the traceback mentions the nested import. Removes an untested code
 path for handling "modules not yet set up by the parent."
 (:pr:`735`)
-   Triggering a reload while using a tool such as PDB no longer hides
 input. (:pr:`1318`)
-   The reloader will not prepend the Python executable to the command
 line if the Python file is marked executable. This allows the
 reloader to work on NixOS. (:pr:`1242`)
-   Fix an issue where ``sys.path`` would change between reloads when
 running with ``python -m app``. The reloader can detect that a
 module was run with "-m" and reconstructs that instead of the file
 path in ``sys.argv`` when reloading. (:pr:`1416`)
-   The dev server can bind to a Unix socket by passing a hostname like
 ``unix://app.socket``. (:pr:`209`, :pr:`1019`)
-   Server uses ``IPPROTO_TCP`` constant instead of ``SOL_TCP`` for
 Jython compatibility. (:pr:`1375`)
-   When using an adhoc SSL cert with :func:`~serving.run_simple`, the
 cert is shown as self-signed rather than signed by an invalid
 authority. (:pr:`1430`)
-   The development server logs the unquoted IRI rather than the raw
 request line, to make it easier to work with Unicode in request
 paths during development. (:issue:`1115`)
-   The development server recognizes ``ConnectionError`` on Python 3 to
 silence client disconnects, and does not silence other ``OSErrors``
 that may have been raised inside the application. (:pr:`1418`)
-   The environ keys ``REQUEST_URI`` and ``RAW_URI`` contain the raw
 path before it was percent-decoded. This is non-standard, but many
 WSGI servers add them. Middleware could replace ``PATH_INFO`` with
 this to route based on the raw value. (:pr:`1419`)
-   :class:`~test.EnvironBuilder` doesn't set ``CONTENT_TYPE`` or
 ``CONTENT_LENGTH`` in the environ if they aren't set. Previously
 these used default values if they weren't set. Now it's possible to
 distinguish between empty and unset values. (:pr:`1308`)
-   The test client raises a ``ValueError`` if a query string argument
 would overwrite a query string in the path. (:pr:`1338`)
-   :class:`test.EnvironBuilder` and :class:`test.Client` take a
 ``json`` argument instead of manually passing ``data`` and
 ``content_type``. This is serialized using the
 :meth:`test.EnvironBuilder.json_dumps` method. (:pr:`1404`)
-   :class:`test.Client` redirect handling is rewritten. (:pr:`1402`)

 -   The redirect environ is copied from the initial request environ.
 -   Script root and path are correctly distinguished when
     redirecting to a path under the root.
 -   The HEAD method is not changed to GET.
 -   307 and 308 codes preserve the method and body. All others
     ignore the body and related headers.
 -   Headers are passed to the new request for all codes, following
     what browsers do.
 -   :class:`test.EnvironBuilder` sets the content type and length
     headers in addition to the WSGI keys when detecting them from
     the data.
 -   Intermediate response bodies are iterated over even when
     ``buffered=False`` to ensure iterator middleware can run cleanup
     code safely. Only the last response is not buffered. (:pr:`988`)

-   :class:`~test.EnvironBuilder`, :class:`~datastructures.FileStorage`,
 and :func:`wsgi.get_input_stream` no longer share a global
 ``_empty_stream`` instance. This improves test isolation by
 preventing cases where closing the stream in one request would
 affect other usages. (:pr:`1340`)
-   The default ``SecureCookie.serialization_method`` will change from
 :mod:`pickle` to :mod:`json` in 1.0. To upgrade existing tokens,
 override :meth:`~contrib.securecookie.SecureCookie.unquote` to try
 ``pickle`` if ``json`` fails. (:pr:`1413`)
-   ``CGIRootFix`` no longer modifies ``PATH_INFO`` for very old
 versions of Lighttpd. ``LighttpdCGIRootFix`` was renamed to
 ``CGIRootFix`` in 0.9. Both are deprecated and will be removed in
 version 1.0. (:pr:`1141`)
-   :class:`werkzeug.wrappers.json.JSONMixin` has been replaced with
 Flask's implementation. Check the docs for the full API.
 (:pr:`1445`)
-   The contrib modules are deprecated and will either be moved into
 ``werkzeug`` core or removed completely in version 1.0. Some modules
 that already issued deprecation warnings have been removed. Be sure
 to run or test your code with
 ``python -W default::DeprecationWarning`` to catch any deprecated
 code you're using. (:issue:`4`)

 -   ``LintMiddleware`` has moved to :mod:`werkzeug.middleware.lint`.
 -   ``ProfilerMiddleware`` has moved to
     :mod:`werkzeug.middleware.profiler`.
 -   ``ProxyFix`` has moved to :mod:`werkzeug.middleware.proxy_fix`.
 -   ``JSONRequestMixin`` has moved to :mod:`werkzeug.wrappers.json`.
 -   ``cache`` has been extracted into a separate project,
     `cachelib <https://github.com/pallets/cachelib>`_. The version
     in Werkzeug is deprecated.
 -   ``securecookie`` and ``sessions`` have been extracted into a
     separate project,
     `secure-cookie <https://github.com/pallets/secure-cookie>`_. The
     version in Werkzeug is deprecated.
 -   Everything in ``fixers``, except ``ProxyFix``, is deprecated.
 -   Everything in ``wrappers``, except ``JSONMixin``, is deprecated.
 -   ``atom`` is deprecated. This did not fit in with the rest of
     Werkzeug, and is better served by a dedicated library in the
     community.
 -   ``jsrouting`` is removed. Set URLs when rendering templates
     or JSON responses instead.
 -   ``limiter`` is removed. Its specific use is handled by Werkzeug
     directly, but stream limiting is better handled by the WSGI
     server in general.
 -   ``testtools`` is removed. It did not offer significant benefit
     over the default test client.
 -   ``iterio`` is deprecated.

-   :func:`wsgi.get_host` no longer looks at ``X-Forwarded-For``. Use
 :class:`~middleware.proxy_fix.ProxyFix` to handle that.
 (:issue:`609`, :pr:`1303`)
-   :class:`~middleware.proxy_fix.ProxyFix` is refactored to support
 more headers, multiple values, and more secure configuration.

 -   Each header supports multiple values. The trusted number of
     proxies is configured separately for each header. The
     ``num_proxies`` argument is deprecated. (:pr:`1314`)
 -   Sets ``SERVER_NAME`` and ``SERVER_PORT`` based on
     ``X-Forwarded-Host``. (:pr:`1314`)
 -   Sets ``SERVER_PORT`` and modifies ``HTTP_HOST`` based on
     ``X-Forwarded-Port``. (:issue:`1023`, :pr:`1304`)
 -   Sets ``SCRIPT_NAME`` based on ``X-Forwarded-Prefix``.
     (:issue:`1237`)
 -   The original WSGI environment values are stored in the
     ``werkzeug.proxy_fix.orig`` key, a dict. The individual keys
     ``werkzeug.proxy_fix.orig_remote_addr``,
     ``werkzeug.proxy_fix.orig_wsgi_url_scheme``, and
     ``werkzeug.proxy_fix.orig_http_host`` are deprecated.

-   Middleware from ``werkzeug.wsgi`` has moved to separate modules
 under ``werkzeug.middleware``, along with the middleware moved from
 ``werkzeug.contrib``. The old ``werkzeug.wsgi`` imports are
 deprecated and will be removed in version 1.0. (:pr:`1452`)

 -   ``werkzeug.wsgi.DispatcherMiddleware`` has moved to
     :class:`werkzeug.middleware.dispatcher.DispatcherMiddleware`.
 -   ``werkzeug.wsgi.ProxyMiddleware`` as moved to
     :class:`werkzeug.middleware.http_proxy.ProxyMiddleware`.
 -   ``werkzeug.wsgi.SharedDataMiddleware`` has moved to
     :class:`werkzeug.middleware.shared_data.SharedDataMiddleware`.

-   :class:`~middleware.http_proxy.ProxyMiddleware` proxies the query
 string. (:pr:`1252`)
-   The filenames generated by
 :class:`~middleware.profiler.ProfilerMiddleware` can be customized.
 (:issue:`1283`)
-   The ``werkzeug.wrappers`` module has been converted to a package,
 and its various classes have been organized into separate modules.
 Any previously documented classes, understood to be the existing
 public API, are still importable from ``werkzeug.wrappers``, or may
 be imported from their specific modules. (:pr:`1456`)

Links

• PyPI: https://pypi.org/project/werkzeug
• Changelog: https://pyup.io/changelogs/werkzeug/
• Homepage: https://palletsprojects.com/p/werkzeug/