Changes

Version 2.0.2

Unreleased

Version 2.0.1

Released 2021-05-21

  • Re-add the filename parameter in send_from_directory. The filename parameter has been renamed to path, the old name is deprecated. #4019
  • Mark top-level names as exported so type checking understands imports in user projects. #4024
  • Fix type annotation for g and inform mypy that it is a namespace object that has arbitrary attributes. #4020
  • Fix some types that weren’t available in Python 3.6.0. #4040
  • Improve typing for send_file, send_from_directory, and get_send_file_max_age. #4044, #4026
  • Show an error when a blueprint name contains a dot. The . has special meaning, it is used to separate (nested) blueprint names and the endpoint name. #4041
  • Combine URL prefixes when nesting blueprints that were created with a url_prefix value. #4037
  • Roll back a change to the order that URL matching was done. The URL is again matched after the session is loaded, so the session is available in custom URL converters. #4053
  • Re-add deprecated Config.from_json, which was accidentally removed early. #4078
  • Improve typing for some functions using Callable in their type signatures, focusing on decorator factories. #4060
  • Nested blueprints are registered with their dotted name. This allows different blueprints with the same name to be nested at different locations. #4069
  • register_blueprint takes a name option to change the (pre-dotted) name the blueprint is registered with. This allows the same blueprint to be registered multiple times with unique names for url_for. Registering the same blueprint with the same name multiple times is deprecated. #1091
  • Improve typing for stream_with_context. #4052

Version 2.0.0

Released 2021-05-11

  • Drop support for Python 2 and 3.5.
  • Bump minimum versions of other Pallets projects: Werkzeug >= 2, Jinja2 >= 3, MarkupSafe >= 2, ItsDangerous >= 2, Click >= 8. Be sure to check the change logs for each project. For better compatibility with other applications (e.g. Celery) that still require Click 7, there is no hard dependency on Click 8 yet, but using Click 7 will trigger a DeprecationWarning and Flask 2.1 will depend on Click 8.
  • JSON support no longer uses simplejson. To use another JSON module, override app.json_encoder and json_decoder. #3555
  • The encoding option to JSON functions is deprecated. #3562
  • Passing script_info to app factory functions is deprecated. This was not portable outside the flask command. Use click.get_current_context().obj if it’s needed. #3552
  • The CLI shows better error messages when the app failed to load when looking up commands. #2741
  • Add sessions.SessionInterface.get_cookie_name() to allow setting the session cookie name dynamically. #3369
  • Add Config.from_file() to load config using arbitrary file loaders, such as toml.load or json.load. Config.from_json() is deprecated in favor of this. #3398
  • The flask run command will only defer errors on reload. Errors present during the initial call will cause the server to exit with the traceback immediately. #3431
  • send_file() raises a ValueError when passed an io object in text mode. Previously, it would respond with 200 OK and an empty file. #3358
  • When using ad-hoc certificates, check for the cryptography library instead of PyOpenSSL. #3492
  • When specifying a factory function with FLASK_APP, keyword argument can be passed. #3553
  • When loading a .env or .flaskenv file, the current working directory is no longer changed to the location of the file. #3560
  • When returning a (response, headers) tuple from a view, the headers replace rather than extend existing headers on the response. For example, this allows setting the Content-Type for jsonify(). Use response.headers.extend() if extending is desired. #3628
  • The Scaffold class provides a common API for the Flask and Blueprint classes. Blueprint information is stored in attributes just like Flask, rather than opaque lambda functions. This is intended to improve consistency and maintainability. #3215
  • Include samesite and secure options when removing the session cookie. #3726
  • Support passing a pathlib.Path to static_folder. #3579
  • send_file and send_from_directory are wrappers around the implementations in werkzeug.utils. #3828
  • Some send_file parameters have been renamed, the old names are deprecated. attachment_filename is renamed to download_name. cache_timeout is renamed to max_age. add_etags is renamed to etag. #3828, #3883
  • send_file passes download_name even if as_attachment=False by using Content-Disposition: inline. #3828
  • 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. #3828
  • helpers.safe_join is deprecated. Use werkzeug.utils.safe_join instead. #3828
  • The request context does route matching before opening the session. This could allow a session interface to change behavior based on request.endpoint. #3776
  • Use Jinja’s implementation of the |tojson filter. #3881
  • Add route decorators for common HTTP methods. For example, @app.post("/login") is a shortcut for @app.route("/login", methods=["POST"]). #3907
  • Support async views, error handlers, before and after request, and teardown functions. #3412
  • Support nesting blueprints. #593, #1548, #3923
  • Set the default encoding to “UTF-8” when loading .env and .flaskenv files to allow to use non-ASCII characters. #3931
  • flask shell sets up tab and history completion like the default python shell if readline is installed. #3941
  • helpers.total_seconds() is deprecated. Use timedelta.total_seconds() instead. #3962
  • Add type hinting. #3973.

Version 1.1.4

Released 2021-05-13

  • Update static_folder to use _compat.fspath instead of os.fspath to continue supporting Python < 3.6 #4050

Version 1.1.3

Released 2021-05-13

  • Set maximum versions of Werkzeug, Jinja, Click, and ItsDangerous. #4043
  • Re-add support for passing a pathlib.Path for static_folder. #3579

Version 1.1.2

Released 2020-04-03

  • Work around an issue when running the flask command with an external debugger on Windows. #3297
  • The static route will not catch all URLs if the Flask static_folder argument ends with a slash. #3452

Version 1.1.1

Released 2019-07-08

  • The flask.json_available flag was added back for compatibility with some extensions. It will raise a deprecation warning when used, and will be removed in version 2.0.0. #3288

Version 1.1.0

Released 2019-07-04

  • Bump minimum Werkzeug version to >= 0.15.
  • Drop support for Python 3.4.

  • Error handlers for InternalServerError or 500 will always be passed an instance of InternalServerError. If they are invoked due to an unhandled exception, that original exception is now available as e.original_exception rather than being passed directly to the handler. The same is true if the handler is for the base HTTPException. This makes error handler behavior more consistent. #3266

  • Flask.finalize_request() is called for all unhandled exceptions even if there is no 500 error handler.

  • Flask.logger takes the same name as Flask.name (the value passed as Flask(import_name). This reverts 1.0’s behavior of always logging to "flask.app", in order to support multiple apps in the same process. A warning will be shown if old configuration is detected that needs to be moved. #2866
  • flask.RequestContext.copy() includes the current session object in the request context copy. This prevents session pointing to an out-of-date object. #2935
  • Using built-in RequestContext, unprintable Unicode characters in Host header will result in a HTTP 400 response and not HTTP 500 as previously. #2994
  • send_file() supports PathLike objects as described in PEP 0519, to support pathlib in Python 3. #3059
  • send_file() supports BytesIO partial content. #2957
  • open_resource() accepts the “rt” file mode. This still does the same thing as “r”. #3163
  • The MethodView.methods attribute set in a base class is used by subclasses. #3138
  • Flask.jinja_options is a dict instead of an ImmutableDict to allow easier configuration. Changes must still be made before creating the environment. #3190
  • Flask’s JSONMixin for the request and response wrappers was moved into Werkzeug. Use Werkzeug’s version with Flask-specific support. This bumps the Werkzeug dependency to >= 0.15. #3125
  • The flask command entry point is simplified to take advantage of Werkzeug 0.15’s better reloader support. This bumps the Werkzeug dependency to >= 0.15. #3022
  • Support static_url_path that ends with a forward slash. #3134
  • Support empty static_folder without requiring setting an empty static_url_path as well. #3124
  • jsonify() supports dataclasses.dataclass objects. #3195
  • Allow customizing the Flask.url_map_class used for routing. #3069
  • The development server port can be set to 0, which tells the OS to pick an available port. #2926
  • The return value from cli.load_dotenv() is more consistent with the documentation. It will return False if python-dotenv is not installed, or if the given path isn’t a file. #2937
  • Signaling support has a stub for the connect_via method when the Blinker library is not installed. #3208
  • Add an --extra-files option to the flask run CLI command to specify extra files that will trigger the reloader on change. #2897
  • Allow returning a dictionary from a view function. Similar to how returning a string will produce a text/html response, returning a dict will call jsonify to produce a application/json response. #3111
  • Blueprints have a cli Click group like app.cli. CLI commands registered with a blueprint will be available as a group under the flask command. #1357.
  • When using the test client as a context manager (with client:), all preserved request contexts are popped when the block exits, ensuring nested contexts are cleaned up correctly. #3157
  • Show a better error message when the view return type is not supported. #3214
  • flask.testing.make_test_environ_builder() has been deprecated in favour of a new class flask.testing.EnvironBuilder. #3232
  • The flask run command no longer fails if Python is not built with SSL support. Using the --cert option will show an appropriate error message. #3211
  • URL matching now occurs after the request context is pushed, rather than when it’s created. This allows custom URL converters to access the app and request contexts, such as to query a database for an id. #3088

Version 1.0.4

Released 2019-07-04

  • The key information for BadRequestKeyError is no longer cleared outside debug mode, so error handlers can still access it. This requires upgrading to Werkzeug 0.15.5. #3249
  • send_file url quotes the “:” and “/” characters for more compatible UTF-8 filename support in some browsers. #3074
  • Fixes for PEP451 import loaders and pytest 5.x. #3275
  • Show message about dotenv on stderr instead of stdout. #3285

Version 1.0.3

Released 2019-05-17

  • send_file() encodes filenames as ASCII instead of Latin-1 (ISO-8859-1). This fixes compatibility with Gunicorn, which is stricter about header encodings than PEP 3333. #2766
  • Allow custom CLIs using FlaskGroup to set the debug flag without it always being overwritten based on environment variables. #2765
  • flask --version outputs Werkzeug’s version and simplifies the Python version. #2825
  • send_file() handles an attachment_filename that is a native Python 2 string (bytes) with UTF-8 coded bytes. #2933
  • A catch-all error handler registered for HTTPException will not handle RoutingException, which is used internally during routing. This fixes the unexpected behavior that had been introduced in 1.0. #2986
  • Passing the json argument to app.test_client does not push/pop an extra app context. #2900

Version 1.0.2

Released 2018-05-02

  • Fix more backwards compatibility issues with merging slashes between a blueprint prefix and route. #2748
  • Fix error with flask routes command when there are no routes. #2751

Version 1.0.1

Released 2018-04-29

  • Fix registering partials (with no __name__) as view functions. #2730
  • Don’t treat lists returned from view functions the same as tuples. Only tuples are interpreted as response data. #2736
  • Extra slashes between a blueprint’s url_prefix and a route URL are merged. This fixes some backwards compatibility issues with the change in 1.0. #2731, #2742
  • Only trap BadRequestKeyError errors in debug mode, not all BadRequest errors. This allows abort(400) to continue working as expected. #2735
  • The FLASK_SKIP_DOTENV environment variable can be set to 1 to skip automatically loading dotenv files. #2722

Version 1.0

Released 2018-04-26

  • Python 2.6 and 3.3 are no longer supported.
  • Bump minimum dependency versions to the latest stable versions: Werkzeug >= 0.14, Jinja >= 2.10, itsdangerous >= 0.24, Click >= 5.1. #2586
  • Skip app.run when a Flask application is run from the command line. This avoids some behavior that was confusing to debug.
  • Change the default for JSONIFY_PRETTYPRINT_REGULAR to False. jsonify() returns a compact format by default, and an indented format in debug mode. #2193
  • Flask.__init__ accepts the host_matching argument and sets it on url_map. #1559
  • Flask.__init__ accepts the static_host argument and passes it as the host argument when defining the static route. #1559
  • send_file() supports Unicode in attachment_filename. #2223
  • Pass _scheme argument from url_for() to handle_url_build_error(). #2017
  • add_url_rule() accepts the provide_automatic_options argument to disable adding the OPTIONS method. #1489
  • MethodView subclasses inherit method handlers from base classes. #1936
  • Errors caused while opening the session at the beginning of the request are handled by the app’s error handlers. #2254
  • Blueprints gained json_encoder and json_decoder attributes to override the app’s encoder and decoder. #1898
  • Flask.make_response() raises TypeError instead of ValueError for bad response types. The error messages have been improved to describe why the type is invalid. #2256
  • Add routes CLI command to output routes registered on the application. #2259
  • Show warning when session cookie domain is a bare hostname or an IP address, as these may not behave properly in some browsers, such as Chrome. #2282
  • Allow IP address as exact session cookie domain. #2282
  • SESSION_COOKIE_DOMAIN is set if it is detected through SERVER_NAME. #2282
  • Auto-detect zero-argument app factory called create_app or make_app from FLASK_APP. #2297
  • Factory functions are not required to take a script_info parameter to work with the flask command. If they take a single parameter or a parameter named script_info, the ScriptInfo object will be passed. #2319
  • FLASK_APP can be set to an app factory, with arguments if needed, for example FLASK_APP=myproject.app:create_app('dev'). #2326
  • FLASK_APP can point to local packages that are not installed in editable mode, although pip install -e is still preferred. #2414
  • The View class attribute provide_automatic_options is set in as_view(), to be detected by add_url_rule(). #2316
  • Error handling will try handlers registered for blueprint, code, app, code, blueprint, exception, app, exception. #2314
  • Cookie is added to the response’s Vary header if the session is accessed at all during the request (and not deleted). #2288
  • test_request_context() accepts subdomain and url_scheme arguments for use when building the base URL. #1621
  • Set APPLICATION_ROOT to '/' by default. This was already the implicit default when it was set to None.
  • TRAP_BAD_REQUEST_ERRORS is enabled by default in debug mode. BadRequestKeyError has a message with the bad key in debug mode instead of the generic bad request message. #2348
  • Allow registering new tags with TaggedJSONSerializer to support storing other types in the session cookie. #2352
  • Only open the session if the request has not been pushed onto the context stack yet. This allows stream_with_context() generators to access the same session that the containing view uses. #2354
  • Add json keyword argument for the test client request methods. This will dump the given object as JSON and set the appropriate content type. #2358
  • Extract JSON handling to a mixin applied to both the Request and Response classes. This adds the is_json() and get_json() methods to the response to make testing JSON response much easier. #2358
  • Removed error handler caching because it caused unexpected results for some exception inheritance hierarchies. Register handlers explicitly for each exception if you want to avoid traversing the MRO. #2362
  • Fix incorrect JSON encoding of aware, non-UTC datetimes. #2374
  • Template auto reloading will honor debug mode even even if jinja_env was already accessed. #2373

  • The following old deprecated code was removed. #2385

  • flask.ext - import extensions directly by their name instead of through the flask.ext namespace. For example, import flask.ext.sqlalchemy becomes import flask_sqlalchemy.

  • Flask.init_jinja_globals - extend Flask.create_jinja_environment() instead.
  • Flask.error_handlers - tracked by Flask.error_handler_spec, use Flask.errorhandler() to register handlers.
  • Flask.request_globals_class - use Flask.app_ctx_globals_class instead.
  • Flask.static_path - use Flask.static_url_path instead.
  • Request.module - use Request.blueprint instead.
  • The Request.json property is no longer deprecated. #1421
  • Support passing a EnvironBuilder or dict to test_client.open. #2412
  • The flask command and Flask.run() will load environment variables from .env and .flaskenv files if python-dotenv is installed. #2416
  • When passing a full URL to the test client, the scheme in the URL is used instead of PREFERRED_URL_SCHEME. #2430
  • Flask.logger has been simplified. LOGGER_NAME and LOGGER_HANDLER_POLICY config was removed. The logger is always named flask.app. The level is only set on first access, it doesn’t check Flask.debug each time. Only one format is used, not different ones depending on Flask.debug. No handlers are removed, and a handler is only added if no handlers are already configured. #2436
  • Blueprint view function names may not contain dots. #2450
  • Fix a ValueError caused by invalid Range requests in some cases. #2526
  • The development server uses threads by default. #2529
  • Loading config files with silent=True will ignore ENOTDIR errors. #2581
  • Pass --cert and --key options to flask run to run the development server over HTTPS. #2606
  • Added SESSION_COOKIE_SAMESITE to control the SameSite attribute on the session cookie. #2607
  • Added test_cli_runner() to create a Click runner that can invoke Flask CLI commands for testing. #2636
  • Subdomain matching is disabled by default and setting SERVER_NAME does not implicitly enable it. It can be enabled by passing subdomain_matching=True to the Flask constructor. #2635
  • A single trailing slash is stripped from the blueprint url_prefix when it is registered with the app. #2629
  • Request.get_json() doesn’t cache the result if parsing fails when silent is true. #2651
  • Request.get_json() no longer accepts arbitrary encodings. Incoming JSON should be encoded using UTF-8 per RFC 8259, but Flask will autodetect UTF-8, -16, or -32. #2691
  • Added MAX_COOKIE_SIZE and Response.max_cookie_size to control when Werkzeug warns about large cookies that browsers may ignore. #2693
  • Updated documentation theme to make docs look better in small windows. #2709
  • Rewrote the tutorial docs and example project to take a more structured approach to help new users avoid common pitfalls. #2676

Version 0.12.5

Released 2020-02-10

  • Pin Werkzeug to < 1.0.0. #3497

Version 0.12.4

Released 2018-04-29

  • Repackage 0.12.3 to fix package layout issue. #2728

Version 0.12.3

Released 2018-04-26

  • Request.get_json() no longer accepts arbitrary encodings. Incoming JSON should be encoded using UTF-8 per RFC 8259, but Flask will autodetect UTF-8, -16, or -32. #2692
  • Fix a Python warning about imports when using python -m flask. #2666
  • Fix a ValueError caused by invalid Range requests in some cases.

Version 0.12.2

Released 2017-05-16

  • Fix a bug in safe_join on Windows.

Version 0.12.1

Released 2017-03-31

  • Prevent flask run from showing a NoAppException when an ImportError occurs within the imported application module.
  • Fix encoding behavior of app.config.from_pyfile for Python 3. #2118
  • Use the SERVER_NAME config if it is present as default values for app.run. #2109, #2152
  • Call ctx.auto_pop with the exception object instead of None, in the event that a BaseException such as KeyboardInterrupt is raised in a request handler.

Version 0.12

Released 2016-12-21, codename Punsch

  • The cli command now responds to --version.
  • Mimetype guessing and ETag generation for file-like objects in send_file has been removed. #104, :pr1849
  • Mimetype guessing in send_file now fails loudly and doesn’t fall back to application/octet-stream. #1988
  • Make flask.safe_join able to join multiple paths like os.path.join #1730
  • Revert a behavior change that made the dev server crash instead of returning an Internal Server Error. #2006
  • Correctly invoke response handlers for both regular request dispatching as well as error handlers.
  • Disable logger propagation by default for the app logger.
  • Add support for range requests in send_file.
  • app.test_client includes preset default environment, which can now be directly set, instead of per client.get.
  • Fix crash when running under PyPy3. #1814

Version 0.11.1

Released 2016-06-07

  • Fixed a bug that prevented FLASK_APP=foobar/__init__.py from working. #1872

Version 0.11

Released 2016-05-29, codename Absinthe

  • Added support to serializing top-level arrays to flask.jsonify(). This introduces a security risk in ancient browsers.
  • Added before_render_template signal.
  • Added **kwargs to flask.Test.test_client() to support passing additional keyword arguments to the constructor of flask.Flask.test_client_class.
  • Added SESSION_REFRESH_EACH_REQUEST config key that controls the set-cookie behavior. If set to True a permanent session will be refreshed each request and get their lifetime extended, if set to False it will only be modified if the session actually modifies. Non permanent sessions are not affected by this and will always expire if the browser window closes.
  • Made Flask support custom JSON mimetypes for incoming data.
  • Added support for returning tuples in the form (response, headers) from a view function.
  • Added flask.Config.from_json().
  • Added flask.Flask.config_class.
  • Added flask.Config.get_namespace().
  • Templates are no longer automatically reloaded outside of debug mode. This can be configured with the new TEMPLATES_AUTO_RELOAD config key.
  • Added a workaround for a limitation in Python 3.3’s namespace loader.
  • Added support for explicit root paths when using Python 3.3’s namespace packages.
  • Added flask and the flask.cli module to start the local debug server through the click CLI system. This is recommended over the old flask.run() method as it works faster and more reliable due to a different design and also replaces Flask-Script.
  • Error handlers that match specific classes are now checked first, thereby allowing catching exceptions that are subclasses of HTTP exceptions (in werkzeug.exceptions). This makes it possible for an extension author to create exceptions that will by default result in the HTTP error of their choosing, but may be caught with a custom error handler if desired.
  • Added flask.Config.from_mapping().
  • Flask will now log by default even if debug is disabled. The log format is now hardcoded but the default log handling can be disabled through the LOGGER_HANDLER_POLICY configuration key.
  • Removed deprecated module functionality.
  • Added the EXPLAIN_TEMPLATE_LOADING config flag which when enabled will instruct Flask to explain how it locates templates. This should help users debug when the wrong templates are loaded.
  • Enforce blueprint handling in the order they were registered for template loading.
  • Ported test suite to py.test.
  • Deprecated request.json in favour of request.get_json().
  • Add “pretty” and “compressed” separators definitions in jsonify() method. Reduces JSON response size when JSONIFY_PRETTYPRINT_REGULAR=False by removing unnecessary white space included by default after separators.
  • JSON responses are now terminated with a newline character, because it is a convention that UNIX text files end with a newline and some clients don’t deal well when this newline is missing. This came up originally as a part of <https://github.com/postmanlabs/httpbin/issues/168>. #1262
  • The automatically provided OPTIONS method is now correctly disabled if the user registered an overriding rule with the lowercase-version options. #1288
  • flask.json.jsonify now supports the datetime.date type. #1326
  • Don’t leak exception info of already caught exceptions to context teardown handlers. #1393
  • Allow custom Jinja environment subclasses. #1422
  • Updated extension dev guidelines.
  • flask.g now has pop() and setdefault methods.
  • Turn on autoescape for flask.templating.render_template_string by default. #1515
  • flask.ext is now deprecated. #1484
  • send_from_directory now raises BadRequest if the filename is invalid on the server OS. #1763
  • Added the JSONIFY_MIMETYPE configuration variable. #1728
  • Exceptions during teardown handling will no longer leave bad application contexts lingering around.
  • Fixed broken test_appcontext_signals() test case.
  • Raise an AttributeError in flask.helpers.find_package() with a useful message explaining why it is raised when a PEP 302 import hook is used without an is_package() method.
  • Fixed an issue causing exceptions raised before entering a request or app context to be passed to teardown handlers.
  • Fixed an issue with query parameters getting removed from requests in the test client when absolute URLs were requested.
  • Made @before_first_request into a decorator as intended.
  • Fixed an etags bug when sending a file streams with a name.
  • Fixed send_from_directory not expanding to the application root path correctly.
  • Changed logic of before first request handlers to flip the flag after invoking. This will allow some uses that are potentially dangerous but should probably be permitted.
  • Fixed Python 3 bug when a handler from app.url_build_error_handlers reraises the BuildError.

Version 0.10.1

Released 2013-06-14

  • Fixed an issue where |tojson was not quoting single quotes which made the filter not work properly in HTML attributes. Now it’s possible to use that filter in single quoted attributes. This should make using that filter with angular.js easier.
  • Added support for byte strings back to the session system. This broke compatibility with the common case of people putting binary data for token verification into the session.
  • Fixed an issue where registering the same method twice for the same endpoint would trigger an exception incorrectly.

Version 0.10

Released 2013-06-13, codename Limoncello

  • Changed default cookie serialization format from pickle to JSON to limit the impact an attacker can do if the secret key leaks.
  • Added template_test methods in addition to the already existing template_filter method family.
  • Added template_global methods in addition to the already existing template_filter method family.
  • Set the content-length header for x-sendfile.
  • tojson filter now does not escape script blocks in HTML5 parsers.
  • tojson used in templates is now safe by default due. This was allowed due to the different escaping behavior.
  • Flask will now raise an error if you attempt to register a new function on an already used endpoint.
  • Added wrapper module around simplejson and added default serialization of datetime objects. This allows much easier customization of how JSON is handled by Flask or any Flask extension.
  • Removed deprecated internal flask.session module alias. Use flask.sessions instead to get the session module. This is not to be confused with flask.session the session proxy.
  • Templates can now be rendered without request context. The behavior is slightly different as the request, session and g objects will not be available and blueprint’s context processors are not called.
  • The config object is now available to the template as a real global and not through a context processor which makes it available even in imported templates by default.
  • Added an option to generate non-ascii encoded JSON which should result in less bytes being transmitted over the network. It’s disabled by default to not cause confusion with existing libraries that might expect flask.json.dumps to return bytes by default.
  • flask.g is now stored on the app context instead of the request context.
  • flask.g now gained a get() method for not erroring out on non existing items.
  • flask.g now can be used with the in operator to see what’s defined and it now is iterable and will yield all attributes stored.
  • flask.Flask.request_globals_class got renamed to flask.Flask.app_ctx_globals_class which is a better name to what it does since 0.10.
  • request, session and g are now also added as proxies to the template context which makes them available in imported templates. One has to be very careful with those though because usage outside of macros might cause caching.
  • Flask will no longer in

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