[1.1.0] - 2019-08-05

Added

#827 Adds support for dashR testing using pytest framework

Changed

Bumped dash-table version from 4.0.2 to 4.1.0
Bumped dash-core-components version from 1.0.0 to 1.1.0

[1.0.2] - 2019-07-15

Fixed

#821 Fix a bug with callback error reporting, #791.

Changed

Bumped dash-table version from 4.0.1 to 4.0.2

[1.0.1] - 2019-07-09

Changed

💥 #808 Remove strong dash.testing dependencies per community feedbacks. Testing users should do pip install dash[testing] afterwards.
#805 Add headless mode for dash.testing, add pytest_setup_options hook for full configuration of WebDriver Options.
Bumped dash-table version from 4.0.0 to 4.0.1

[1.0.0] - 2019-06-20

Changed

💥 #761 Several breaking changes to the dash.Dash API:
- Removed two obsolete constructor kwargs: static_folder and components_cache_max_age
- Removed the misspelled supress_callback_exceptions fallback
- Removed the unused resources.config.infer_from_layout
- Revamped app.config: ALL constructor args are now stored in config, with three exceptions: server, index_string, and plugins. None of these are stored in any other instance attributes anymore.
- Changed hot_reload_interval from msec to seconds, for consistency with hot_reload_watch_interval
- When called from enable_dev_tools, debug=True by default. It's still False by default from run_server.
✨ #744 Dash Testing(dash.testing) is introduced, read the full tutorial on http://dash.plot.ly/testing.
#753 Component no longer inherits MutableMapping, so values, keys, and more are no longer methods. This fixed an issue reported in dcc where components with certain prop names defined but not provided would cause a failure to render. During component generation we now disallow all props with leading underscores or matching a few remaining reserved words: UNDEFINED, REQUIRED, to_plotly_json, available_properties, and available_wildcard_properties.
#739 Allow the Flask app to be provided to Dash after object initialization. This allows users to define Dash layouts etc when using the app factory pattern, or any other pattern that inhibits access to the app object. This broadly complies with the flask extension API, allowing Dash to be considered as a Flask extension where it needs to be.
#774 Allow the Flask app to set the Dash app name if the name is not provided by users.
#722 Assets are served locally by default. Both JS scripts and CSS files are affected. This improves robustness and flexibility in numerous situations, but in certain cases initial loading could be slowed. To restore the previous CDN serving, set app.scripts.config.serve_locally = False (and similarly with app.css, but this is generally less important).
Undo/redo toolbar is removed by default, you can enable it with app=Dash(show_undo_redo=true). The CSS hack ._dash-undo-redo:{display:none;} is no longer needed #724
💥#709 Merge the dash-renderer project into the main dash repo to simplify feature dev workflow. We will keep the deprecated one for archive purpose.

[0.43.0] - 2019-05-15

Changed

Bumped dash-core-components version from 0.47.0 to 0.48.0
Bumped dash-renderer version from 0.23.0 to 0.24.0
Bumped dash-table version from 3.6.0 to 3.7.0

[0.42.0] - 2019-04-25

Added

#687 Dev Tools support. A new UI in the application that automatically display JavaScript & Python error messages, validates your component's properties, and displays a graph of your callback's dependencies. Only enabled in debug mode. Turn this on and off with two new config flags in app.run_server:
- dev_tools_props_check - turn on/off property validation.
- dev_tools_ui - turn on/off the UI.

[0.41.0] - 2019-04-10

Added

Support for "Clientside Callbacks" - an escape hatch to execute your callbacks in JavaScript instead of Python #672
Added dev_tools_ui config flag in app.run_server (serialized in <script id="_dash-config" type="application/json">) to display or hide the forthcoming Dev Tools UI in Dash's front-end (dash-renderer). #676
Partial updates: leave some multi-output updates unchanged while updating others #680

Changed

Bumped dash-core-components version from 0.45.0 to 0.46.0
Bumped dash-renderer version from 0.21.0 to 0.22.0

[0.40.0] - 2019-03-25

Changed

Bumped dash-core-components version from 0.44.0 to 0.45.0
Bumped dash-html-components version from 0.14.0 to 0.15.0
Bumped dash-renderer version from 0.20.0 to 0.21.0

[0.39.0] - 2019-03-04

Added

Allow multiple outputs from a single callback. #436
Support for custom javascript hooks to modify callback payloads and responses. #367
Modify the flask response with custom cookies or headers, using dash.callback_context.response. #623

Changed

Bumped dash-core-components version from 0.43.1 to 0.44.0
Bumped dash-html-components version from 0.13.5 to 0.14.0
Bumped dash-renderer version from 0.19.0 to 0.20.0
Bumped dash-table version from 3.5.0 to 3.6.0

[0.38.0] - 2019-02-25

Fixed

Fix missing indentation for generated metadata.json #600
Fix missing component prop docstring error #598
Moved __repr__ to base component instead of being generated. #492
Raise exception when same input & output are used in a callback #605

Changed

Bumped dash-table version from 3.4.0 to 3.5.0
Bumped dash-renderer version from 0.18.0 to 0.19.0

Added

Added components libraries js/css distribution to hot reload watch. #603
Callback context #608
- Know which inputs fired in a callback dash.callback_context.triggered
- Input/State values by name dash.callback_context.states.get('btn.n_clicks')

[0.37.0] - 2019-02-11

Fixed

Fixed collections.abc deprecation warning for python 3.8 #563

Changed

Added core libraries as version locked dependencies #565
Bumped dash-table version from 3.3.0 to 3.4.0
Bumped dash-renderer version from 0.17.0 to 0.18.0
Bumped dash-core-components version from 0.43.0 to 0.43.1

[0.36.0] - 2019-01-25

Removed

Removed support for Event system. Use event properties instead, for example the n_clicks property instead of the click event, see #531 for details. dash_renderer MUST be upgraded to >=0.17.0 together with this, and it is recommended to update dash_core_components to >=0.43.0 and dash_html_components to >=0.14.0. #550

[0.35.3] - 2019-01-23

Fixed

Asset blueprint takes routes prefix into it's static path. #547
Asset url path no longer strip routes from requests. #547
Remove print statement from PreventUpdate error handler. #548
Removed ComponentRegistry dist cache #524

Changed

assets_folder argument now default to 'assets' #547
The assets folder is now always relative to the given root path of name argument, the default of __main__ will get the cwd. #547
No longer coerce the name argument from the server if the server argument is provided. #547

[0.35.2] - 2019-01-11

Fixed

Fix typo in some exception names #522

0.35.1 - 2018-12-27

Fixed

Always skip dynamic resources from index resources collection. #518

0.35.0 - 2018-12-18

Added

Experimental --r-prefix option to dash-generate-components, optionally generates R version of components and corresponding R package. #483

0.34.0 - 2018-12-17

Added

--ignore option to dash-generate-components, default to ^_. #490

0.33.0 - 2018-12-10

Added

Added specific Dash exception types to replace generic exceptions (InvalidIndexException, DependencyException, ResourceException) #487

0.32.2 - 2018-12-09

Fixed

Fix typo in missing events/inputs error message #485

0.32.1 - 2018-12-07

Changed

Muted dash related missing props docstring from extract-meta warnings #484

0.32.0 - 2018-12-07

Added

Support for .map file extension and dynamic (on demand) loading #478

0.31.1 - 2018-11-29

Fixed

Fix _imports_.py indentation generation. #473

0.31.0 - 2018-11-29

Added

Combined extract-meta and python component files generation in a cli #451

0.30.0 - 2018-11-14

Added

Hot reload from the browser #362
Silence routes logging with dev_tools_silence_routes_logging.

0.29.0 - 2018-11-06

Added

Added component namespaces registry, collect the resources needed by component library when they are imported instead of crawling the layout. #444

0.28.7 - 2018-11-05

Fixed

Component generation now uses the same prop name black list in all supported Python versions. Closes #361. #450

0.28.6 - 2018-11-05

Fixed

Dash.registered_paths changed to a collections.defaultdict(set), was appending the same package paths on every index. #443

0.28.5 - 2018-10-18

Fixed

Replace windows endline when generating the components classes docstring #431

0.28.4 - 2018-10-18

Fixed

The Component.traverse() and Component.traverse_with_paths() methods now work correctly for components with children of type tuple (before, this only worked for lists). #430

0.28.3 - 2018-10-17

Fixed

Fix http-equiv typo #418

0.28.2 - 2018-10-05

Added

Moved add_url function definition out of Dash.__init__ #377

0.28.1 - 2018-09-26

Fixed

Missing favicon package_data from setup.py #407

0.28.0 - 2018-09-26

Added

Default favicon for dash apps. #406
Bust the cache of the assets favicon.

Fixed

Remove the first and last blank lines from the HTML index string. #403

0.27.0 - 2018-09-20

Added

Added support for serving dev bundles from the components suite, enable with app.run_server(dev_tools_serve_dev_bundles=True) #369

Fixed

Use HTML5 syntax for the meta tag #350

0.26.6 - 2018-09-19

Fixed

Added Cache-Control headers to files served by Dash.serve_component_suites. #387
Added time modified query string to collected components suites resources.
Added InvalidResourceError. #393
Added a flask errorhandler to catch InvalidResourceError from serve_component_suites and return a 404.

0.26.5 - 2018-09-10

Fixed

Fix get_asset_url with a different assets_url_path. #374

0.26.4 - 2018-08-28

Fixed

Set url_base_pathname to None in Dash.__init__. Fix #364

0.26.3 - 2018-08-27

Fixed

Prefix assets files with requests_pathname_prefix. #351

Added

Dash.get_asset_url will give the prefixed url for the asset file.

0.26.2 - 2018-08-26

Fixed

Only create the assets blueprint once for app that provide the same flask instance to multiple dash instance. #343

0.26.1 - 2018-08-26

Fixed

Fix bug in _validate_layout which would not let a user set app.layout to be a function that returns a layout (fixes #334). #336

0.26.0 - 2018-08-20

Added

Added assets_ignore init keyword, regex filter for the assets files. #318

0.25.1 - 2018-08-20

Fixed

Ensure CSS/JS external resources are loaded before the assets. #335

0.25.0 - 2018-08-14

Added

Take configs values from init or environ variables (Prefixed with DASH_). #322

Fixed

Take requests_pathname_prefix config when creating scripts tags.
requests/routes_pathname_prefix must starts and end with /.
requests_pathname_prefix must ends with routes_pathname_prefix. If you supplied both requests and routes pathname before this update, make sure requests_pathname_prefix ends with the same value as routes_pathname_prefix.
url_base_pathname set both requests/routes pathname, cannot supply it with either requests or routes pathname prefixes.

0.24.2 - 2018-08-13

Fixed

Disallow duplicate component ids in the initial layout. #320

0.24.1 - 2018-08-10

Fixed

Fixed bug in 0.23.1 where importing Dash components with no props would result in an error. (Fixes #321).
Fixed bug in 0.23.1 where importing components with arguments that are python keywords could cause an error. In particular, this fixes dash-html-components while using Python 3.7.

0.24.0 - 2018-08-10

Added

Add a modified time query string to the assets included in the index in order to bust the cache. #319

0.23.1 - 2018-08-02

Added

Add ie-compat meta tag to the index by default. #316
Add external_script and external_css keywords to dash __init__. #305
Dash components are now generated at build-time and then imported rather than generated when a module is imported. This should reduce the time it takes to import Dash component libraries, and makes Dash compatible with IDEs.

0.22.1 - 2018-08-01

Fixed

Raise a more informative error if a non JSON serializable value is returned from a callback #273

0.22.0 - 2018-07-25

Added

Assets files & index customization #286
Raise an error if there is no layout present when the server is running #294

0.21.1 - 2018-04-10

Added

aria-* and data-* attributes are now supported in all dash html components. (#40)
These new keywords can be added using a dictionary expansion, e.g. html.Div(id="my-div", **{"data-toggle": "toggled", "aria-toggled": "true"})

0.21.0 - 2018-02-21

Added

#207 Dash now supports React components that use Flow. To support Flow, component_loader now has the following behavior to create docstrings as determined in discussion in #187: 1. If a Dash component has PropTypes-generated typing, the docstring uses the PropTypes, regardless of whether the component also has Flow types (current behavior). 2. Otherwise if a Dash component has Flow types but not PropTypes, the docstring now uses the objects generated by react-docgen from the Flow types.

0.20.0 - 2018-01-19

Added

exceptions.PreventUpdate can be raised inside a callback to elegantly prevent the callback from updating the app. See https://community.plot.ly/t/improving-handling-of-aborted-callbacks/7536/2 for context and #190 for the PR.

Changed

Many pylint style fixes. See #163, #164, #165, #166, #167, #168, #169, #172, #173, #181, #185, #186, #193
New integration test framework #184
Submodules are now imported into the dash namespace for better IDE completion #174

0.19.0 - 2017-10-16

Changed

🔒 CSRF protection measures were removed as CSRF style attacks are not relevant to Dash apps. Dash's API uses POST requests with content type application/json which are not susceptible to unwanted requests from 3rd party sites. See #141 for more.
🔒 Setting app.server.secret_key is no longer required since CSRF protection was removed. Setting app.server.secret_key was difficult to document and a very common source of confusion, so it's great that users won't get bitten by this anymore 🎉

0.18.3 - 2017-09-08

Added

app.config is now a dict instead of a class. You can set config variables with app.config['suppress_callback_exceptions'] = True now. The previous class-based syntax (e.g. app.config.suppress_callback_exceptions) has been maintained for backwards compatibility

Fixed

0.18.2 introduced a bug that removed the ability for dash to serve the app on any route besides /. This has been fixed.
0.18.0 introduced a bug with the new config variables when used in a multi-app setting. These variables would be shared across apps. This issue has been fixed. Originally reported in https://community.plot.ly/t/flask-endpoint-error/5691/7
The config setting supress_callback_exceptions has been renamed to suppress_callback_exceptions. Previously, suppress was spelled wrong. The original config variable is kept for backwards compatibility.

0.18.3rc1 - 2017-09-08

The prerelease for 0.18.3

0.18.2 - 2017-09-07

Added

🔧 Added an endpoint to each of the URLs to allow for multiple routes (#70)

0.18.1 - 2017-09-07

Fixed

🐛 If app.layout was supplied a function, then it used to be called excessively. Now it is called just once on startup and just once on page load. #128

0.18.0 - 2017-09-07

Changed

🔒 Removes the /static/ folder and endpoint that is implicitly initialized by flask. This is too implicit for my comfort level: I worry that users will not be aware that their files in their static folder are accessible
⚡️ Removes all API calls to the Plotly API (https://api.plot.ly/), the authentication endpoints and decorators, and the associated filename, sharing and app_url arguments. This was never documented or officially supported and authentication has been moved to the dash-auth package
✏️ Sorts the prop names in the exception messages (#107)

Added

🔧 Add two new config variables: routes_pathname_prefix and requests_pathname_prefix to provide more flexibility for API routing when Dash apps are run behind proxy servers. routes_pathname_prefix is a prefix applied to the backend routes and requests_pathname_prefix prefixed in requests made by Dash's front-end. dash-renderer==0.8.0rc3 uses these endpoints.
🔧 Added id to KeyError exception in components (#112)

Fixed

✏️ Fix a typo in an exception
🔧 Replaced all illegal characters in environment variable

##🔧 Maintenance

📝 Update README.md
✅ Fix CircleCI tests. Note that the dash-renderer contains the bulk of the integration tests.
💄 Flake8 fixes and tests (fixes #99 )
✨ Added this CHANGELOG.md

0.17.3 - 2017-06-22

✨ This is the initial open-source release of Dash

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[1.0.2] - 2019-07-15

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[1.0.1] - 2019-07-09

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[1.0.0] - 2019-06-20

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[0.43.0] - 2019-05-15

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[0.42.0] - 2019-04-25

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[0.41.0] - 2019-04-10

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[0.40.0] - 2019-03-25

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[0.39.0] - 2019-03-04

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[0.38.0] - 2019-02-25

Fixed

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[0.37.0] - 2019-02-11

Fixed

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[0.36.0] - 2019-01-25

Removed

[0.35.3] - 2019-01-23

Fixed

Changed

[0.35.2] - 2019-01-11

Fixed

0.35.1 - 2018-12-27

Fixed

0.35.0 - 2018-12-18

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0.34.0 - 2018-12-17

Added

0.33.0 - 2018-12-10

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0.32.2 - 2018-12-09

Fixed

0.32.1 - 2018-12-07

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0.32.0 - 2018-12-07

Added

0.31.1 - 2018-11-29

Fixed

0.31.0 - 2018-11-29

Added

0.30.0 - 2018-11-14

Added

0.29.0 - 2018-11-06

Added

0.28.7 - 2018-11-05

Fixed

0.28.6 - 2018-11-05

Fixed

0.28.5 - 2018-10-18

Fixed

0.28.4 - 2018-10-18

Fixed

0.28.3 - 2018-10-17

Fixed

0.28.2 - 2018-10-05

Added

0.28.1 - 2018-09-26

Fixed

0.28.0 - 2018-09-26

Added