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Document the model spec difference between ipywidgets 7 and 8 #3455

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jasongrout opened this issue May 10, 2022 · 3 comments
Closed

Document the model spec difference between ipywidgets 7 and 8 #3455

jasongrout opened this issue May 10, 2022 · 3 comments
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docs
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8.0

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@jasongrout
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From the dev meeting: we should diff the spec between 7.x and 8.x to see the final differences between the model specs, and include this in the documentation/migration guide for developers.
@jasongrout jasongrout added this to the 8.0 milestone May 10, 2022
@vidartf vidartf added the docs label Jun 21, 2022
@vidartf
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vidartf commented Jul 12, 2022 •
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Github doesn't really have a way to view only the diff of a single file for a range (AFAIK). This is the entire diff between the 7.7.1 tag and the 8.0.0.rc-1 tag:

7.7.1...8.0.0rc1#diff-76c58c499131f42cddfc4b58686947ab4bc1c76e3e291ab06516109e9a9c1ce3

The recommendation here would be to produce a unified diff format (or similar that we can render in MD for the docs) via the command line:

git diff 7.7.1...8.0.0rc1 -- ./packages/schema/jupyterwidgetmodels.latest.md > spec.diff

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vidartf commented Jul 12, 2022 •
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-### LayoutModel (@jupyter-widgets/base, 1.2.0); LayoutView (@jupyter-widgets/base, 1.2.0)
+### LayoutModel (@jupyter-widgets/base, 2.0.0); LayoutView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/base'` | The namespace for the model.
-`_model_module_version` | string           | `'1.2.0'`        | A semver requirement for namespace version containing the model.
+`_model_module_version` | string           | `'2.0.0'`        | A semver requirement for namespace version containing the model.
 `_model_name`    | string           | `'LayoutModel'`  |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'LayoutView'`   |
 `align_content`  | `null` or string (one of `'flex-start'`, `'flex-end'`, `'center'`, `'space-between'`, `'space-around'`, `'space-evenly'`, `'stretch'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The align-content CSS attribute.
 `align_items`    | `null` or string (one of `'flex-start'`, `'flex-end'`, `'center'`, `'baseline'`, `'stretch'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The align-items CSS attribute.
 `align_self`     | `null` or string (one of `'auto'`, `'flex-start'`, `'flex-end'`, `'center'`, `'baseline'`, `'stretch'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The align-self CSS attribute.
-`border`         | `null` or string | `null`           | The border CSS attribute.
+`border_bottom`  | `null` or string | `null`           | The border bottom CSS attribute.
+`border_left`    | `null` or string | `null`           | The border left CSS attribute.
+`border_right`   | `null` or string | `null`           | The border right CSS attribute.
+`border_top`     | `null` or string | `null`           | The border top CSS attribute.
 `bottom`         | `null` or string | `null`           | The bottom CSS attribute.
 `display`        | `null` or string | `null`           | The display CSS attribute.
 `flex`           | `null` or string | `null`           | The flex CSS attribute.
@@ -50,239 +60,299 @@ Attribute        | Type             | Default          | Help
 `object_position` | `null` or string | `null`           | The object-position CSS attribute.
 `order`          | `null` or string | `null`           | The order CSS attribute.
 `overflow`       | `null` or string | `null`           | The overflow CSS attribute.
-`overflow_x`     | `null` or string (one of `'visible'`, `'hidden'`, `'scroll'`, `'auto'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The overflow-x CSS attribute (deprecated).
-`overflow_y`     | `null` or string (one of `'visible'`, `'hidden'`, `'scroll'`, `'auto'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The overflow-y CSS attribute (deprecated).
 `padding`        | `null` or string | `null`           | The padding CSS attribute.
 `right`          | `null` or string | `null`           | The right CSS attribute.
 `top`            | `null` or string | `null`           | The top CSS attribute.
 `visibility`     | `null` or string (one of `'visible'`, `'hidden'`, `'inherit'`, `'initial'`, `'unset'`) | `null`           | The visibility CSS attribute.
 `width`          | `null` or string | `null`           | The width CSS attribute.

-### AccordionModel (@jupyter-widgets/controls, 1.5.0); AccordionView (@jupyter-widgets/controls, 1.5.0)
+### AccordionModel (@jupyter-widgets/controls, 2.0.0); AccordionView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'AccordionModel'` |
-`_titles`        | object           | `{}`             | Titles of the pages
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'AccordionView'` |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
-`selected_index` | `null` or number (integer) | `0`              | The index of the selected page. This is either an integer selecting a particular sub-widget, or None to have no widgets selected.
+`selected_index` | `null` or number (integer) | `null`           | The index of the selected page. This is either an integer selecting a particular sub-widget, or None to have no widgets selected.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`titles`         | array of string  | `[]`             | Titles of the pages
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### AudioModel (@jupyter-widgets/controls, 1.5.0); AudioView (@jupyter-widgets/controls, 1.5.0)
+### AudioModel (@jupyter-widgets/controls, 2.0.0); AudioView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'AudioModel'`   |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'AudioView'`    |
 `autoplay`       | boolean          | `true`           | When true, the audio starts when it's displayed
 `controls`       | boolean          | `true`           | Specifies that audio controls should be displayed (such as a play/pause button etc)
 `format`         | string           | `'mp3'`          | The format of the audio.
 `layout`         | reference to Layout widget | reference to new instance |
 `loop`           | boolean          | `true`           | When true, the audio will start from the beginning after finishing
-`value`          | Bytes            | `b''`            | The media data as a byte string.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | Bytes            | `b''`            | The media data as a memory view of bytes.

-### BoundedFloatTextModel (@jupyter-widgets/controls, 1.5.0); FloatTextView (@jupyter-widgets/controls, 1.5.0)
+### BoundedFloatTextModel (@jupyter-widgets/controls, 2.0.0); FloatTextView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'BoundedFloatTextModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FloatTextView'` |
 `continuous_update` | boolean          | `false`          | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (float)   | `100.0`          | Max value
 `min`            | number (float)   | `0.0`            | Min value
 `step`           | `null` or number (float) | `null`           | Minimum step to increment the value
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | Float value

-### BoundedIntTextModel (@jupyter-widgets/controls, 1.5.0); IntTextView (@jupyter-widgets/controls, 1.5.0)
+### BoundedIntTextModel (@jupyter-widgets/controls, 2.0.0); IntTextView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'BoundedIntTextModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'IntTextView'`  |
 `continuous_update` | boolean          | `false`          | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (integer) | `100`            | Max value
 `min`            | number (integer) | `0`              | Min value
 `step`           | number (integer) | `1`              | Minimum step to increment the value
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (integer) | `0`              | Int value

-### BoxModel (@jupyter-widgets/controls, 1.5.0); BoxView (@jupyter-widgets/controls, 1.5.0)
+### BoxModel (@jupyter-widgets/controls, 2.0.0); BoxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'BoxModel'`     |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'BoxView'`      |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### ButtonModel (@jupyter-widgets/controls, 1.5.0); ButtonView (@jupyter-widgets/controls, 1.5.0)
+### ButtonModel (@jupyter-widgets/controls, 2.0.0); ButtonView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ButtonModel'`  |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ButtonView'`   |
 `button_style`   | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the button.
 `description`    | string           | `''`             | Button label.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
-`icon`           | string           | `''`             | Font-awesome icon name, without the 'fa-' prefix.
+`icon`           | string           | `''`             | Font-awesome icon names, without the 'fa-' prefix.
 `layout`         | reference to Layout widget | reference to new instance |
 `style`          | reference to ButtonStyle widget | reference to new instance |
-`tooltip`        | string           | `''`             | Tooltip caption of the button.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### ButtonStyleModel (@jupyter-widgets/controls, 1.5.0); StyleView (@jupyter-widgets/base, 1.2.0)
+### ButtonStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ButtonStyleModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'StyleView'`    |
 `button_color`   | `null` or string | `null`           | Color of the button
-`font_weight`    | string           | `''`             | Button text font weight.
+`font_family`    | `null` or string | `null`           | Button text font family.
+`font_size`      | `null` or string | `null`           | Button text font size.
+`font_style`     | `null` or string | `null`           | Button text font style.
+`font_variant`   | `null` or string | `null`           | Button text font variant.
+`font_weight`    | `null` or string | `null`           | Button text font weight.
+`text_color`     | `null` or string | `null`           | Button text color.
+`text_decoration` | `null` or string | `null`           | Button text decoration.

-### CheckboxModel (@jupyter-widgets/controls, 1.5.0); CheckboxView (@jupyter-widgets/controls, 1.5.0)
+### CheckboxModel (@jupyter-widgets/controls, 2.0.0); CheckboxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'CheckboxModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'CheckboxView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
 `indent`         | boolean          | `true`           | Indent the control to align with other controls with a description.
 `layout`         | reference to Layout widget | reference to new instance |
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to CheckboxStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | boolean          | `false`          | Bool value

-### ColorPickerModel (@jupyter-widgets/controls, 1.5.0); ColorPickerView (@jupyter-widgets/controls, 1.5.0)
+### CheckboxStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'CheckboxStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`background`     | `null` or string | `null`           | Background specifications.
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+
+### ColorPickerModel (@jupyter-widgets/controls, 2.0.0); ColorPickerView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ColorPickerModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ColorPickerView'` |
 `concise`        | boolean          | `false`          | Display short version with just a color selector.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
 `layout`         | reference to Layout widget | reference to new instance |
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `'black'`        | The color value.

-### ComboboxModel (@jupyter-widgets/controls, 1.5.0); ComboboxView (@jupyter-widgets/controls, 1.5.0)
+### ColorsInputModel (@jupyter-widgets/controls, 2.0.0); ColorsInputView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'ColorsInputModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'ColorsInputView'` |
+`allow_duplicates` | boolean          | `true`           |
+`allowed_tags`   | array            | `[]`             |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`layout`         | reference to Layout widget | reference to new instance |
+`placeholder`    | string           | `'\u200b'`       |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | array            | `[]`             | List of string tags
+
+### ComboboxModel (@jupyter-widgets/controls, 2.0.0); ComboboxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ComboboxModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ComboboxView'` |
 `continuous_update` | boolean          | `true`           | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `ensure_option`  | boolean          | `false`          | If set, ensure value is in options. Implies continuous_update=False.
 `layout`         | reference to Layout widget | reference to new instance |
 `options`        | array of string  | `[]`             | Dropdown options for the combobox
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to TextStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### ControllerAxisModel (@jupyter-widgets/controls, 1.5.0); ControllerAxisView (@jupyter-widgets/controls, 1.5.0)
+### ControllerAxisModel (@jupyter-widgets/controls, 2.0.0); ControllerAxisView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ControllerAxisModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ControllerAxisView'` |
 `layout`         | reference to Layout widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | The value of the axis.

-### ControllerButtonModel (@jupyter-widgets/controls, 1.5.0); ControllerButtonView (@jupyter-widgets/controls, 1.5.0)
+### ControllerButtonModel (@jupyter-widgets/controls, 2.0.0); ControllerButtonView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ControllerButtonModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ControllerButtonView'` |
 `layout`         | reference to Layout widget | reference to new instance |
 `pressed`        | boolean          | `false`          | Whether the button is pressed.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | The value of the button.

-### ControllerModel (@jupyter-widgets/controls, 1.5.0); ControllerView (@jupyter-widgets/controls, 1.5.0)
+### ControllerModel (@jupyter-widgets/controls, 2.0.0); ControllerView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ControllerModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ControllerView'` |
 `axes`           | array of reference to Axis widget | `[]`             | The axes on the gamepad.
 `buttons`        | array of reference to Button widget | `[]`             | The buttons on the gamepad.
@@ -291,124 +361,158 @@ Attribute        | Type             | Default          | Help
 `layout`         | reference to Layout widget | reference to new instance |
 `mapping`        | string           | `''`             | The name of the control mapping.
 `name`           | string           | `''`             | The name of the controller.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
 `timestamp`      | number (float)   | `0.0`            | The last time the data from this gamepad was updated.
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### DOMWidgetModel (@jupyter-widgets/controls, 1.5.0); None (@jupyter-widgets/controls, 1.5.0)
+### DOMWidgetModel (@jupyter-widgets/controls, 2.0.0); None (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'DOMWidgetModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | `null` or string | `null`           | Name of the view.
 `layout`         | reference to Layout widget | reference to new instance |
-`value`          | Bytes            | `b''`            | The media data as a byte string.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | Bytes            | `b''`            | The media data as a memory view of bytes.

-### DatePickerModel (@jupyter-widgets/controls, 1.5.0); DatePickerView (@jupyter-widgets/controls, 1.5.0)
+### DatePickerModel (@jupyter-widgets/controls, 2.0.0); DatePickerView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'DatePickerModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'DatePickerView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
 `layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or Date   | `null`           |
+`min`            | `null` or Date   | `null`           |
+`step`           | number (integer) or string (one of `'any'`) | `1`              | The date step to use for the picker, in days, or "any".
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | `null` or Date   | `null`           |

-### DescriptionStyleModel (@jupyter-widgets/controls, 1.5.0); StyleView (@jupyter-widgets/base, 1.2.0)
+### DatetimeModel (@jupyter-widgets/controls, 2.0.0); DatetimeView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'DatetimeModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'DatetimeView'` |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`disabled`       | boolean          | `false`          | Enable or disable user changes.
+`layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or Datetime | `null`           |
+`min`            | `null` or Datetime | `null`           |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | `null` or Datetime | `null`           |
+
+### DescriptionStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'DescriptionStyleModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'StyleView'`    |
 `description_width` | string           | `''`             | Width of the description to the side of the control.

-### DirectionalLinkModel (@jupyter-widgets/controls, 1.5.0); None (@jupyter-widgets/controls, 1.5.0)
+### DirectionalLinkModel (@jupyter-widgets/controls, 2.0.0); None (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'DirectionalLinkModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | `null` or string | `null`           | Name of the view.
 `source`         | array            | `[]`             | The source (widget, 'trait_name') pair
 `target`         | array            | `[]`             | The target (widget, 'trait_name') pair

-### DropdownModel (@jupyter-widgets/controls, 1.5.0); DropdownView (@jupyter-widgets/controls, 1.5.0)
+### DropdownModel (@jupyter-widgets/controls, 2.0.0); DropdownView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'DropdownModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'DropdownView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | `null` or number (integer) | `null`           | Selected index
 `layout`         | reference to Layout widget | reference to new instance |
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### FileUploadModel (@jupyter-widgets/controls, 1.5.0); FileUploadView (@jupyter-widgets/controls, 1.5.0)
+### FileUploadModel (@jupyter-widgets/controls, 2.0.0); FileUploadView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
-`_counter`       | number (integer) | `0`              |
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FileUploadModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FileUploadView'` |
 `accept`         | string           | `''`             | File types to accept, empty string for all
 `button_style`   | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the button.
-`data`           | array            | `[]`             | List of file content (bytes)
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable button
 `error`          | string           | `''`             | Error message
 `icon`           | string           | `'upload'`       | Font-awesome icon name, without the 'fa-' prefix.
 `layout`         | reference to Layout widget | reference to new instance |
-`metadata`       | array            | `[]`             | List of file metadata
 `multiple`       | boolean          | `false`          | If True, allow for multiple files upload
 `style`          | reference to ButtonStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | array of object  | `[]`             | The file upload value

-### FloatLogSliderModel (@jupyter-widgets/controls, 1.5.0); FloatLogSliderView (@jupyter-widgets/controls, 1.5.0)
+### FloatLogSliderModel (@jupyter-widgets/controls, 2.0.0); FloatLogSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FloatLogSliderModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FloatLogSliderView'` |
 `base`           | number (float)   | `10.0`           | Base for the logarithm
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is holding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (float)   | `4.0`            | Max value for the exponent
@@ -416,45 +520,50 @@ Attribute        | Type             | Default          | Help
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `readout`        | boolean          | `true`           | Display the current value of the slider next to it.
 `readout_format` | string           | `'.3g'`          | Format for the readout
-`step`           | number (float)   | `0.1`            | Minimum step in the exponent to increment the value
+`step`           | `null` or number (float) | `0.1`            | Minimum step in the exponent to increment the value
 `style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `1.0`            | Float value

-### FloatProgressModel (@jupyter-widgets/controls, 1.5.0); ProgressView (@jupyter-widgets/controls, 1.5.0)
+### FloatProgressModel (@jupyter-widgets/controls, 2.0.0); ProgressView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FloatProgressModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ProgressView'` |
-`bar_style`      | `null` or string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the progess bar.
+`bar_style`      | `null` or string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the progress bar.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (float)   | `100.0`          | Max value
 `min`            | number (float)   | `0.0`            | Min value
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `style`          | reference to ProgressStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | Float value

-### FloatRangeSliderModel (@jupyter-widgets/controls, 1.5.0); FloatRangeSliderView (@jupyter-widgets/controls, 1.5.0)
+### FloatRangeSliderModel (@jupyter-widgets/controls, 2.0.0); FloatRangeSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FloatRangeSliderModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FloatRangeSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is sliding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (float)   | `100.0`          | Max value
@@ -462,24 +571,27 @@ Attribute        | Type             | Default          | Help
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `readout`        | boolean          | `true`           | Display the current value of the slider next to it.
 `readout_format` | string           | `'.2f'`          | Format for the readout
-`step`           | number (float)   | `0.1`            | Minimum step to increment the value
+`step`           | `null` or number (float) | `0.1`            | Minimum step to increment the value
 `style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | array            | `[0.0, 1.0]`     | Tuple of (lower, upper) bounds

-### FloatSliderModel (@jupyter-widgets/controls, 1.5.0); FloatSliderView (@jupyter-widgets/controls, 1.5.0)
+### FloatSliderModel (@jupyter-widgets/controls, 2.0.0); FloatSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FloatSliderModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FloatSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is holding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (float)   | `100.0`          | Max value
@@ -487,148 +599,221 @@ Attribute        | Type             | Default          | Help
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `readout`        | boolean          | `true`           | Display the current value of the slider next to it.
 `readout_format` | string           | `'.2f'`          | Format for the readout
-`step`           | number (float)   | `0.1`            | Minimum step to increment the value
+`step`           | `null` or number (float) | `0.1`            | Minimum step to increment the value
 `style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | Float value

-### FloatTextModel (@jupyter-widgets/controls, 1.5.0); FloatTextView (@jupyter-widgets/controls, 1.5.0)
+### FloatTextModel (@jupyter-widgets/controls, 2.0.0); FloatTextView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'FloatTextModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'FloatTextView'` |
 `continuous_update` | boolean          | `false`          | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `step`           | `null` or number (float) | `null`           | Minimum step to increment the value
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (float)   | `0.0`            | Float value

-### GridBoxModel (@jupyter-widgets/controls, 1.5.0); GridBoxView (@jupyter-widgets/controls, 1.5.0)
+### FloatsInputModel (@jupyter-widgets/controls, 2.0.0); FloatsInputView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'FloatsInputModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'FloatsInputView'` |
+`allow_duplicates` | boolean          | `true`           |
+`allowed_tags`   | array            | `[]`             |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`format`         | string           | `'.1f'`          |
+`layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or number (float) | `null`           |
+`min`            | `null` or number (float) | `null`           |
+`placeholder`    | string           | `'\u200b'`       |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tag_style`      | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the tags.
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | array            | `[]`             | List of float tags
+
+### GridBoxModel (@jupyter-widgets/controls, 2.0.0); GridBoxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'GridBoxModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'GridBoxView'`  |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### HBoxModel (@jupyter-widgets/controls, 1.5.0); HBoxView (@jupyter-widgets/controls, 1.5.0)
+### HBoxModel (@jupyter-widgets/controls, 2.0.0); HBoxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'HBoxModel'`    |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'HBoxView'`     |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### HTMLMathModel (@jupyter-widgets/controls, 1.5.0); HTMLMathView (@jupyter-widgets/controls, 1.5.0)
+### HTMLMathModel (@jupyter-widgets/controls, 2.0.0); HTMLMathView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'HTMLMathModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'HTMLMathView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to HTMLMathStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### HTMLModel (@jupyter-widgets/controls, 1.5.0); HTMLView (@jupyter-widgets/controls, 1.5.0)
+### HTMLMathStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'HTMLMathStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`background`     | `null` or string | `null`           | Background specifications.
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+`font_size`      | `null` or string | `null`           | Text font size.
+`text_color`     | `null` or string | `null`           | Text color
+
+### HTMLModel (@jupyter-widgets/controls, 2.0.0); HTMLView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'HTMLModel'`    |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'HTMLView'`     |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to HTMLStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### ImageModel (@jupyter-widgets/controls, 1.5.0); ImageView (@jupyter-widgets/controls, 1.5.0)
+### HTMLStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'HTMLStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`background`     | `null` or string | `null`           | Background specifications.
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+`font_size`      | `null` or string | `null`           | Text font size.
+`text_color`     | `null` or string | `null`           | Text color
+
+### ImageModel (@jupyter-widgets/controls, 2.0.0); ImageView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ImageModel'`   |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ImageView'`    |
 `format`         | string           | `'png'`          | The format of the image.
 `height`         | string           | `''`             | Height of the image in pixels. Use layout.height for styling the widget.
 `layout`         | reference to Layout widget | reference to new instance |
-`value`          | Bytes            | `b''`            | The media data as a byte string.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | Bytes            | `b''`            | The media data as a memory view of bytes.
 `width`          | string           | `''`             | Width of the image in pixels. Use layout.width for styling the widget.

-### IntProgressModel (@jupyter-widgets/controls, 1.5.0); ProgressView (@jupyter-widgets/controls, 1.5.0)
+### IntProgressModel (@jupyter-widgets/controls, 2.0.0); ProgressView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'IntProgressModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ProgressView'` |
-`bar_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the progess bar.
+`bar_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the progress bar.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (integer) | `100`            | Max value
 `min`            | number (integer) | `0`              | Min value
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `style`          | reference to ProgressStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (integer) | `0`              | Int value

-### IntRangeSliderModel (@jupyter-widgets/controls, 1.5.0); IntRangeSliderView (@jupyter-widgets/controls, 1.5.0)
+### IntRangeSliderModel (@jupyter-widgets/controls, 2.0.0); IntRangeSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'IntRangeSliderModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'IntRangeSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is sliding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (integer) | `100`            | Max value
@@ -638,22 +823,25 @@ Attribute        | Type             | Default          | Help
 `readout_format` | string           | `'d'`            | Format for the readout
 `step`           | number (integer) | `1`              | Minimum step that the value can take
 `style`          | reference to SliderStyle widget | reference to new instance | Slider style customizations.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | array            | `[0, 1]`         | Tuple of (lower, upper) bounds

-### IntSliderModel (@jupyter-widgets/controls, 1.5.0); IntSliderView (@jupyter-widgets/controls, 1.5.0)
+### IntSliderModel (@jupyter-widgets/controls, 2.0.0); IntSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'IntSliderModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'IntSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is holding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (integer) | `100`            | Max value
@@ -663,392 +851,594 @@ Attribute        | Type             | Default          | Help
 `readout_format` | string           | `'d'`            | Format for the readout
 `step`           | number (integer) | `1`              | Minimum step to increment the value
 `style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (integer) | `0`              | Int value

-### IntTextModel (@jupyter-widgets/controls, 1.5.0); IntTextView (@jupyter-widgets/controls, 1.5.0)
+### IntTextModel (@jupyter-widgets/controls, 2.0.0); IntTextView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'IntTextModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'IntTextView'`  |
 `continuous_update` | boolean          | `false`          | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `step`           | number (integer) | `1`              | Minimum step to increment the value
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (integer) | `0`              | Int value

-### LabelModel (@jupyter-widgets/controls, 1.5.0); LabelView (@jupyter-widgets/controls, 1.5.0)
+### IntsInputModel (@jupyter-widgets/controls, 2.0.0); IntsInputView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'IntsInputModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'IntsInputView'` |
+`allow_duplicates` | boolean          | `true`           |
+`allowed_tags`   | array            | `[]`             |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`format`         | string           | `'.3g'`          |
+`layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or number (integer) | `null`           |
+`min`            | `null` or number (integer) | `null`           |
+`placeholder`    | string           | `'\u200b'`       |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tag_style`      | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the tags.
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | array            | `[]`             | List of int tags
+
+### LabelModel (@jupyter-widgets/controls, 2.0.0); LabelView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'LabelModel'`   |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'LabelView'`    |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to LabelStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### LinkModel (@jupyter-widgets/controls, 1.5.0); None (@jupyter-widgets/controls, 1.5.0)
+### LabelStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'LabelStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`background`     | `null` or string | `null`           | Background specifications.
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+`font_family`    | `null` or string | `null`           | Label text font family.
+`font_size`      | `null` or string | `null`           | Text font size.
+`font_style`     | `null` or string | `null`           | Label text font style.
+`font_variant`   | `null` or string | `null`           | Label text font variant.
+`font_weight`    | `null` or string | `null`           | Label text font weight.
+`text_color`     | `null` or string | `null`           | Text color
+`text_decoration` | `null` or string | `null`           | Label text decoration.
+
+### LinkModel (@jupyter-widgets/controls, 2.0.0); None (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'LinkModel'`    |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | `null` or string | `null`           | Name of the view.
 `source`         | array            | `[]`             | The source (widget, 'trait_name') pair
 `target`         | array            | `[]`             | The target (widget, 'trait_name') pair

-### PasswordModel (@jupyter-widgets/controls, 1.5.0); PasswordView (@jupyter-widgets/controls, 1.5.0)
+### NaiveDatetimeModel (@jupyter-widgets/controls, 2.0.0); DatetimeView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'NaiveDatetimeModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'DatetimeView'` |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`disabled`       | boolean          | `false`          | Enable or disable user changes.
+`layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or Datetime | `null`           |
+`min`            | `null` or Datetime | `null`           |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | `null` or Datetime | `null`           |
+
+### PasswordModel (@jupyter-widgets/controls, 2.0.0); PasswordView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'PasswordModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'PasswordView'` |
 `continuous_update` | boolean          | `true`           | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to TextStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### PlayModel (@jupyter-widgets/controls, 1.5.0); PlayView (@jupyter-widgets/controls, 1.5.0)
+### PlayModel (@jupyter-widgets/controls, 2.0.0); PlayView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'PlayModel'`    |
-`_playing`       | boolean          | `false`          | Whether the control is currently playing.
-`_repeat`        | boolean          | `false`          | Whether the control will repeat in a continous loop.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'PlayView'`     |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
-`interval`       | number (integer) | `100`            | The maximum value for the play control.
+`interval`       | number (integer) | `100`            | The time between two animation steps (ms).
 `layout`         | reference to Layout widget | reference to new instance |
 `max`            | number (integer) | `100`            | Max value
 `min`            | number (integer) | `0`              | Min value
+`playing`        | boolean          | `false`          | Whether the control is currently playing.
+`repeat`         | boolean          | `false`          | Whether the control will repeat in a continuous loop.
 `show_repeat`    | boolean          | `true`           | Show the repeat toggle button in the widget.
 `step`           | number (integer) | `1`              | Increment step
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | number (integer) | `0`              | Int value

-### ProgressStyleModel (@jupyter-widgets/controls, 1.5.0); StyleView (@jupyter-widgets/base, 1.2.0)
+### ProgressStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ProgressStyleModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'StyleView'`    |
 `bar_color`      | `null` or string | `null`           | Color of the progress bar.
 `description_width` | string           | `''`             | Width of the description to the side of the control.

-### RadioButtonsModel (@jupyter-widgets/controls, 1.5.0); RadioButtonsView (@jupyter-widgets/controls, 1.5.0)
+### RadioButtonsModel (@jupyter-widgets/controls, 2.0.0); RadioButtonsView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'RadioButtonsModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'RadioButtonsView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | `null` or number (integer) | `null`           | Selected index
 `layout`         | reference to Layout widget | reference to new instance |
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### SelectModel (@jupyter-widgets/controls, 1.5.0); SelectView (@jupyter-widgets/controls, 1.5.0)
+### SelectModel (@jupyter-widgets/controls, 2.0.0); SelectView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'SelectModel'`  |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'SelectView'`   |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | `null` or number (integer) | `null`           | Selected index
 `layout`         | reference to Layout widget | reference to new instance |
 `rows`           | number (integer) | `5`              | The number of rows to display.
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### SelectMultipleModel (@jupyter-widgets/controls, 1.5.0); SelectMultipleView (@jupyter-widgets/controls, 1.5.0)
+### SelectMultipleModel (@jupyter-widgets/controls, 2.0.0); SelectMultipleView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'SelectMultipleModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'SelectMultipleView'` |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | array of number (integer) | `[]`             | Selected indices
 `layout`         | reference to Layout widget | reference to new instance |
 `rows`           | number (integer) | `5`              | The number of rows to display.
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### SelectionRangeSliderModel (@jupyter-widgets/controls, 1.5.0); SelectionRangeSliderView (@jupyter-widgets/controls, 1.5.0)
+### SelectionRangeSliderModel (@jupyter-widgets/controls, 2.0.0); SelectionRangeSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'SelectionRangeSliderModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'SelectionRangeSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is holding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | array            | `[0, 0]`         | Min and max selected indices
 `layout`         | reference to Layout widget | reference to new instance |
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `readout`        | boolean          | `true`           | Display the current selected label next to the slider
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### SelectionSliderModel (@jupyter-widgets/controls, 1.5.0); SelectionSliderView (@jupyter-widgets/controls, 1.5.0)
+### SelectionSliderModel (@jupyter-widgets/controls, 2.0.0); SelectionSliderView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'SelectionSliderModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'SelectionSliderView'` |
+`behavior`       | string (one of `'drag-tap'`, `'drag-snap'`, `'tap'`, `'drag'`, `'snap'`) | `'drag-tap'`     | Slider dragging behavior.
 `continuous_update` | boolean          | `true`           | Update the value of the widget as the user is holding the slider.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `index`          | number (integer) | `0`              | Selected index
 `layout`         | reference to Layout widget | reference to new instance |
 `orientation`    | string (one of `'horizontal'`, `'vertical'`) | `'horizontal'`   | Vertical or horizontal.
 `readout`        | boolean          | `true`           | Display the current selected label next to the slider
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to SliderStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### SliderStyleModel (@jupyter-widgets/controls, 1.5.0); StyleView (@jupyter-widgets/base, 1.2.0)
+### SliderStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'SliderStyleModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'StyleView'`    |
 `description_width` | string           | `''`             | Width of the description to the side of the control.
 `handle_color`   | `null` or string | `null`           | Color of the slider handle.

-### TabModel (@jupyter-widgets/controls, 1.5.0); TabView (@jupyter-widgets/controls, 1.5.0)
+### StackedModel (@jupyter-widgets/controls, 2.0.0); StackedView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'StackedModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StackedView'`  |
+`box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
+`children`       | array of reference to Widget widget | `[]`             | List of widget children
+`layout`         | reference to Layout widget | reference to new instance |
+`selected_index` | `null` or number (integer) | `null`           | The index of the selected page. This is either an integer selecting a particular sub-widget, or None to have no widgets selected.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`titles`         | array of string  | `[]`             | Titles of the pages
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+
+### TabModel (@jupyter-widgets/controls, 2.0.0); TabView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'TabModel'`     |
-`_titles`        | object           | `{}`             | Titles of the pages
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'TabView'`      |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
-`selected_index` | `null` or number (integer) | `0`              | The index of the selected page. This is either an integer selecting a particular sub-widget, or None to have no widgets selected.
+`selected_index` | `null` or number (integer) | `null`           | The index of the selected page. This is either an integer selecting a particular sub-widget, or None to have no widgets selected.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`titles`         | array of string  | `[]`             | Titles of the pages
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+
+### TagsInputModel (@jupyter-widgets/controls, 2.0.0); TagsInputView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'TagsInputModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'TagsInputView'` |
+`allow_duplicates` | boolean          | `true`           |
+`allowed_tags`   | array            | `[]`             |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`layout`         | reference to Layout widget | reference to new instance |
+`placeholder`    | string           | `'\u200b'`       |
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tag_style`      | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the tags.
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | array            | `[]`             | List of string tags

-### TextModel (@jupyter-widgets/controls, 1.5.0); TextView (@jupyter-widgets/controls, 1.5.0)
+### TextModel (@jupyter-widgets/controls, 2.0.0); TextView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'TextModel'`    |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'TextView'`     |
 `continuous_update` | boolean          | `true`           | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to TextStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### TextareaModel (@jupyter-widgets/controls, 1.5.0); TextareaView (@jupyter-widgets/controls, 1.5.0)
+### TextStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'TextStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`background`     | `null` or string | `null`           | Background specifications.
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+`font_size`      | `null` or string | `null`           | Text font size.
+`text_color`     | `null` or string | `null`           | Text color
+
+### TextareaModel (@jupyter-widgets/controls, 2.0.0); TextareaView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'TextareaModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'TextareaView'` |
 `continuous_update` | boolean          | `true`           | Update the value as the user types. If False, update on submission, e.g., pressing Enter or navigating away.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `layout`         | reference to Layout widget | reference to new instance |
 `placeholder`    | string           | `'\u200b'`       | Placeholder text to display when nothing has been typed
 `rows`           | `null` or number (integer) | `null`           | The number of rows to display.
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`style`          | reference to TextStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | string           | `''`             | String value

-### ToggleButtonModel (@jupyter-widgets/controls, 1.5.0); ToggleButtonView (@jupyter-widgets/controls, 1.5.0)
+### TimeModel (@jupyter-widgets/controls, 2.0.0); TimeView (@jupyter-widgets/controls, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'TimeModel'`    |
+`_view_module`   | string           | `'@jupyter-widgets/controls'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'TimeView'`     |
+`description`    | string           | `''`             | Description of the control.
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
+`disabled`       | boolean          | `false`          | Enable or disable user changes.
+`layout`         | reference to Layout widget | reference to new instance |
+`max`            | `null` or Time   | `null`           |
+`min`            | `null` or Time   | `null`           |
+`step`           | number (float) or string (one of `'any'`) | `60`             | The time step to use for the picker, in seconds, or "any".
+`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | `null` or Time   | `null`           |
+
+### ToggleButtonModel (@jupyter-widgets/controls, 2.0.0); ToggleButtonView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ToggleButtonModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ToggleButtonView'` |
 `button_style`   | string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the button.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
 `icon`           | string           | `''`             | Font-awesome icon.
 `layout`         | reference to Layout widget | reference to new instance |
-`style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
-`tooltip`        | string           | `''`             | Tooltip caption of the toggle button.
+`style`          | reference to ToggleButtonStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | boolean          | `false`          | Bool value

-### ToggleButtonsModel (@jupyter-widgets/controls, 1.5.0); ToggleButtonsView (@jupyter-widgets/controls, 1.5.0)
+### ToggleButtonStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)
+
+Attribute        | Type             | Default          | Help
+-----------------|------------------|------------------|----
+`_model_module`  | string           | `'@jupyter-widgets/controls'` |
+`_model_module_version` | string           | `'2.0.0'`        |
+`_model_name`    | string           | `'ToggleButtonStyleModel'` |
+`_view_module`   | string           | `'@jupyter-widgets/base'` |
+`_view_module_version` | string           | `'2.0.0'`        |
+`_view_name`     | string           | `'StyleView'`    |
+`description_width` | string           | `''`             | Width of the description to the side of the control.
+`font_family`    | `null` or string | `null`           | Toggle button text font family.
+`font_size`      | `null` or string | `null`           | Toggle button text font size.
+`font_style`     | `null` or string | `null`           | Toggle button text font style.
+`font_variant`   | `null` or string | `null`           | Toggle button text font variant.
+`font_weight`    | `null` or string | `null`           | Toggle button text font weight.
+`text_color`     | `null` or string | `null`           | Toggle button text color
+`text_decoration` | `null` or string | `null`           | Toggle button text decoration.
+
+### ToggleButtonsModel (@jupyter-widgets/controls, 2.0.0); ToggleButtonsView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ToggleButtonsModel'` |
 `_options_labels` | array of string  | `[]`             | The labels for the options.
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ToggleButtonsView'` |
 `button_style`   | `null` or string (one of `'primary'`, `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the buttons.
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes
 `icons`          | array of string  | `[]`             | Icons names for each button (FontAwesome names without the fa- prefix).
 `index`          | `null` or number (integer) | `null`           | Selected index
 `layout`         | reference to Layout widget | reference to new instance |
 `style`          | reference to ToggleButtonsStyle widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `tooltips`       | array of string  | `[]`             | Tooltips for each button.

-### ToggleButtonsStyleModel (@jupyter-widgets/controls, 1.5.0); StyleView (@jupyter-widgets/base, 1.2.0)
+### ToggleButtonsStyleModel (@jupyter-widgets/controls, 2.0.0); StyleView (@jupyter-widgets/base, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ToggleButtonsStyleModel'` |
 `_view_module`   | string           | `'@jupyter-widgets/base'` |
-`_view_module_version` | string           | `'1.2.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'StyleView'`    |
 `button_width`   | string           | `''`             | The width of each button.
 `description_width` | string           | `''`             | Width of the description to the side of the control.
 `font_weight`    | string           | `''`             | Text font weight of each button.

-### VBoxModel (@jupyter-widgets/controls, 1.5.0); VBoxView (@jupyter-widgets/controls, 1.5.0)
+### VBoxModel (@jupyter-widgets/controls, 2.0.0); VBoxView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'VBoxModel'`    |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'VBoxView'`     |
 `box_style`      | string (one of `'success'`, `'info'`, `'warning'`, `'danger'`, `''`) | `''`             | Use a predefined styling for the box.
 `children`       | array of reference to Widget widget | `[]`             | List of widget children
 `layout`         | reference to Layout widget | reference to new instance |
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

-### ValidModel (@jupyter-widgets/controls, 1.5.0); ValidView (@jupyter-widgets/controls, 1.5.0)
+### ValidModel (@jupyter-widgets/controls, 2.0.0); ValidView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'ValidModel'`   |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'ValidView'`    |
 `description`    | string           | `''`             | Description of the control.
-`description_tooltip` | `null` or string | `null`           | Tooltip for the description (defaults to description).
+`description_allow_html` | boolean          | `false`          | Accept HTML in the description.
 `disabled`       | boolean          | `false`          | Enable or disable user changes.
 `layout`         | reference to Layout widget | reference to new instance |
 `readout`        | string           | `'Invalid'`      | Message displayed when the value is False
 `style`          | reference to DescriptionStyle widget | reference to new instance | Styling customizations
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
 `value`          | boolean          | `false`          | Bool value

-### VideoModel (@jupyter-widgets/controls, 1.5.0); VideoView (@jupyter-widgets/controls, 1.5.0)
+### VideoModel (@jupyter-widgets/controls, 2.0.0); VideoView (@jupyter-widgets/controls, 2.0.0)

 Attribute        | Type             | Default          | Help
 -----------------|------------------|------------------|----
 `_dom_classes`   | array of string  | `[]`             | CSS classes applied to widget DOM element
 `_model_module`  | string           | `'@jupyter-widgets/controls'` |
-`_model_module_version` | string           | `'1.5.0'`        |
+`_model_module_version` | string           | `'2.0.0'`        |
 `_model_name`    | string           | `'VideoModel'`   |
 `_view_module`   | string           | `'@jupyter-widgets/controls'` |
-`_view_module_version` | string           | `'1.5.0'`        |
+`_view_module_version` | string           | `'2.0.0'`        |
 `_view_name`     | string           | `'VideoView'`    |
 `autoplay`       | boolean          | `true`           | When true, the video starts when it's displayed
 `controls`       | boolean          | `true`           | Specifies that video controls should be displayed (such as a play/pause button etc)
@@ -1056,7 +1446,9 @@ Attribute        | Type             | Default          | Help
 `height`         | string           | `''`             | Height of the video in pixels.
 `layout`         | reference to Layout widget | reference to new instance |
 `loop`           | boolean          | `true`           | When true, the video will start from the beginning after finishing
-`value`          | Bytes            | `b''`            | The media data as a byte string.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.
+`value`          | Bytes            | `b''`            | The media data as a memory view of bytes.
 `width`          | string           | `''`             | Width of the video in pixels.

 ### OutputModel (@jupyter-widgets/output, 1.0.0); OutputView (@jupyter-widgets/output, 1.0.0)
@@ -1073,4 +1465,6 @@ Attribute        | Type             | Default          | Help
 `layout`         | reference to Layout widget | reference to new instance |
 `msg_id`         | string           | `''`             | Parent message id of messages to capture
 `outputs`        | array of object  | `[]`             | The output messages synced from the frontend.
+`tabbable`       | `null` or boolean | `null`           | Is widget tabbable?
+`tooltip`        | `null` or string | `null`           | A tooltip caption.

@vidartf vidartf mentioned this issue Jul 26, 2022
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@jtpio jtpio mentioned this issue Aug 4, 2022
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@jasongrout
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A link to this was added in #3528, so closing this issue.

@parashardhapola parashardhapola mentioned this issue Aug 26, 2022
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