diff --git a/guides/release/components/built-in-components.md b/guides/release/components/built-in-components.md
deleted file mode 100644
index 9b0b1ebf91..0000000000
--- a/guides/release/components/built-in-components.md
+++ /dev/null
@@ -1,220 +0,0 @@
-Out of the box, Ember provides 2 components for building a form:
-
-* [`<Input>`](https://api.emberjs.com/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input)
-* [`<Textarea>`](https://api.emberjs.com/ember/release/classes/Ember.Templates.components/methods/Textarea?anchor=Textarea)
-
-These components are similar in HTML markup to the native `<input>` or `<textarea>` elements. In contrast to the native elements, `<Input>` and `<Textarea>` automatically update the state of their bound values.
-
-
-## `<Input>`
-
-We mentioned that the built-in components are similar in HTML markup to their native counterparts. What does this mean?
-
-Consider the following example in a template file.
-
-```handlebars
-<label for="user-question">Ask a question about Ember:</label>
-<Input
-  id="user-question"
-  @type="text"
-  @value="How do text fields work?"
-/>
-```
-
-When Ember renders this template, you will see the following HTML code:
-
-```html
-<label for="user-question">Ask a question about Ember:</label>
-<input id="user-question" type="text" value="How do text fields work?" />
-```
-
-
-### Ways to associate labels and inputs
-
-Every input should be associated with a label. In HTML, there are a few ways to do this. With the built-in `<Input>` component,
-
-1. You can nest the input inside the label.
-
-   ```handlebars
-   <label>
-     Ask a question about Ember:
-
-     <Input
-       @type="text"
-       @value={{this.userQuestion}}
-     />
-   </label>
-   ```
-
-2. You can create an ID (globally unique within the webpage), then associate the label to the input with `for` attribute and `id` attribute.
-
-   ```handlebars
-   <label for={{this.myUniqueId}}>
-     Ask a question about Ember:
-   </label>
-
-   <Input
-     id={{this.myUniqueId}}
-     @type="text"
-     @value={{this.userQuestion}}
-   />
-   ```
-
-3. You can use the `aria-label` attribute to label the input with a string that is visually hidden but still available to assistive technology. 
-
-   ```handlebars
-   <Input
-     aria-label="Ask a question about Ember"
-     @type="text"
-     @value={{this.userQuestion}}
-   />
-   ```
-
-While it is more appropriate to use the `<label>` element, the `aria-label` attribute can be used in instances where visible text content is not possible.
-
-
-### Setting attributes on `<Input>`
-
-With a few exceptions, you can pass [input attributes](https://developer.mozilla.org/docs/Web/HTML/Element/input#Attributes) as attributes (i.e. do not prepend `@`) to the `<Input>` component.
-
-For example, the `aria-labelledby` attribute may be useful if you have a search input. The search button can serve as the label for the input element:
-
-```handlebars
-<Input aria-labelledby="button-search" />
-<button id="button-search" type="button">Search</button>
-```
-
-If an attribute is set to a quoted string (`"button-search"` in the prior example), its value will be set directly on the element.
-
-You can also bind the attribute value to a property that you own.
-In the next example, the `disabled` attribute is bound to the value of `isReadOnly` in the current context.
-
-```handlebars
-<label for="input-name">Name:</label>
-<Input
-  id="input-name"
-  @value={{this.name}}
-  disabled={{this.isReadOnly}}
-  maxlength="50"
-/>
-```
-
-Recall that there were a few exceptions. The following input attributes must be passed as arguments (i.e. do prepend `@`) to the `<Input>` component:
-
-- `@checked`
-- `@type`
-- `@value`
-
-
-### Actions
-
-Starting with Ember Octane, we recommend using the `{{on}}` modifier to call an action on specific events such as the [input event](https://developer.mozilla.org/docs/Web/API/HTMLElement/input_event).
-
-```handlebars
-<label for="input-name">Name:</label>
-<Input
-  id="input-name"
-  @value={{this.name}}
-  {{on "input" this.validateName}}
-/>
-```
-
-[Learn more about the `{{on}}` modifier.](../../upgrading/current-edition/action-on-and-fn/#toc_the-on-modifier)
-
-Lastly, Ember also provides custom input events `@enter`, `@insert-newline` and `@escape-press`. These events do not exist on native input elements, but you may find them to be useful for handling keyboard interactions.
-
-The modern, Octane-style way to handle keyboard events is to [write a modifier](../../upgrading/current-edition/glimmer-components/#toc_writing-your-own-modifiers) to separate concerns: The component manages the state, while the modifier manages interactions with the DOM. Your action will receive an actual `event` object.
-
-There are [community-made addons](https://emberobserver.com/?query=keyboard) to help manage keyboard events. For example, with [ember-keyboard](https://github.com/adopted-ember-addons/ember-keyboard), you can write,
-
-```handlebars
-{{!-- Before --}}
-<Input
-  @enter={{this.doSomething}}
-  @escape-press={{this.doSomethingElse}}
-/>
-
-{{!-- After --}}
-<Input
-  {{on-key "Enter" this.doSomething}}
-  {{on-key "Escape" this.doSomethingElse event="keydown"}}
-/>
-```
-
-Note, the `keydown` event was used for `Escape` because `keypress` is deprecated.
-
-
-### Checkboxes
-
-You can use the
-[`<Input>`](https://api.emberjs.com/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input)
-component to create a checkbox. Set `@type` to the string `"checkbox"`, and use `@checked` instead of `@value`.
-
-```handlebars
-<label for="admin-checkbox">Is Admin?</label>
-<Input
-  id="admin-checkbox"
-  @type="checkbox"
-  @checked={{this.isAdmin}}
-/>
-```
-
-To call an action on specific events, use the `{{on}}` modifier:
-
-```handlebars
-<label for="admin-checkbox">Is Admin?</label>
-<Input
-  id="admin-checkbox"
-  @type="checkbox"
-  @checked={{this.isAdmin}}
-  {{on "input" this.validateRole}}
-/>
-```
-
-
-## `<Textarea>`
-
-The following example shows how to bind `this.userComment` to a text area's value.
-
-```handlebars
-<label for="user-comment">Comment:</label>
-<Textarea
-  id="user-comment"
-  @value={{this.userComment}}
-  rows="6"
-  cols="80"
-/>
-```
-
-
-### Setting attributes on `<Textarea>`
-
-With the exception of `@value` argument, you can use any [attribute](https://developer.mozilla.org/docs/Web/HTML/Element/textarea#Attributes) that `<textarea>` natively supports.
-
-
-<!--
-  TODO:
-  Move this section to a dedicated page for how to build forms.
-  Please present a solution that does not use `{{mut}}`.
--->
-## Binding dynamic attribute
-
-You might need to bind a property dynamically to an input if you're building a
-flexible form, for example. To achieve this you need to use the
-[`{{get}}`](https://api.emberjs.com/ember/release/classes/Ember.Templates.helpers/methods/get?anchor=get)
-and [`{{mut}}`](https://api.emberjs.com/ember/release/classes/Ember.Templates.helpers/methods/mut?anchor=mut)
-in conjunction like shown in the following example:
-
-```handlebars
-<label for="input-name">Name:</label>
-<Input
-  id="input-name"
-  @value={{mut (get this.person this.field)}}
-/>
-```
-
-The `{{get}}` helper allows you to dynamically specify which property to bind,
-while the `{{mut}}` helper allows the binding to be updated from the input. See
-the respective helper documentation for more detail:
-[`{{get}}`](https://api.emberjs.com/ember/release/classes/Ember.Templates.helpers/methods/get?anchor=get)
-and [`{{mut}}`](https://api.emberjs.com/ember/release/classes/Ember.Templates.helpers/methods/mut?anchor=mut).