All-Blockchains · pull · May 20, 2026 · May 20, 2026 · May 20, 2026 · May 20, 2026
diff --git a/...en-us/learn_web_development/core/frameworks_libraries/angular_building/index.md b/...en-us/learn_web_development/core/frameworks_libraries/angular_building/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenu("Learn_web_development/Core/Frameworks_libraries/Angular_filtering", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 This final Angular article covers how to build an app ready for production, and provides further resources for you to continue your learning journey.
 
 <table>

diff --git a/...n-us/learn_web_development/core/frameworks_libraries/angular_filtering/index.md b/...n-us/learn_web_development/core/frameworks_libraries/angular_filtering/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Angular_item_component","Learn_web_development/Core/Frameworks_libraries/Angular_building", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now let's move on to adding functionality to allow users to filter their to-do items, so they can view active, completed, or all items.
 
 <table>

diff --git a/...earn_web_development/core/frameworks_libraries/angular_getting_started/index.md b/...earn_web_development/core/frameworks_libraries/angular_getting_started/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{NextMenu("Learn_web_development/Core/Frameworks_libraries/Angular_todo_list_beginning", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 It is now time to look at Google's Angular framework, another popular option that you'll come across often. In this article we look at what Angular has to offer, install the prerequisites and set up a sample app, and look at Angular's basic architecture.
 
 > [!NOTE]

diff --git a/...learn_web_development/core/frameworks_libraries/angular_item_component/index.md b/...learn_web_development/core/frameworks_libraries/angular_item_component/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Angular_styling","Learn_web_development/Core/Frameworks_libraries/Angular_filtering", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Components provide a way for you to organize your application. This article walks you through creating a component to handle the individual items in the list, and adding check, edit, and delete functionality. The Angular event model is covered here.
 
 <table>

diff --git a/.../en-us/learn_web_development/core/frameworks_libraries/angular_styling/index.md b/.../en-us/learn_web_development/core/frameworks_libraries/angular_styling/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Angular_todo_list_beginning","Learn_web_development/Core/Frameworks_libraries/Angular_item_component", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now that we've got our basic application structure set up and started displaying something useful, let's switch gears and spend an article looking at how Angular handles styling of applications.
 
 <table>

diff --git a/..._web_development/core/frameworks_libraries/angular_todo_list_beginning/index.md b/..._web_development/core/frameworks_libraries/angular_todo_list_beginning/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Angular_getting_started","Learn_web_development/Core/Frameworks_libraries/Angular_styling", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Angular articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 At this point, we are ready to start creating our to-do list application using Angular. The finished application will display a list of to-do items and includes editing, deleting, and adding features. In this article you will get to know your application structure, and work up to displaying a basic list of to-do items.
 
 <table>

diff --git a/...arn_web_development/core/frameworks_libraries/ember_conditional_footer/index.md b/...arn_web_development/core/frameworks_libraries/ember_conditional_footer/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Ember_interactivity_events_state","Learn_web_development/Core/Frameworks_libraries/Ember_routing", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now it's time to start tackling the footer functionality in our app. Here we'll get the todo counter to update to show the correct number of todos still to complete, and correctly apply styling to completed todos (i.e., where the checkbox has been checked). We'll also wire up our "Clear completed" button. Along the way, we'll learn about using conditional rendering in our templates.
 
 <table>

diff --git a/.../learn_web_development/core/frameworks_libraries/ember_getting_started/index.md b/.../learn_web_development/core/frameworks_libraries/ember_getting_started/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{NextMenu("Learn_web_development/Core/Frameworks_libraries/Ember_structure_componentization", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In our first Ember article we will look at how Ember works and what it's useful for, install the Ember toolchain locally, create a sample app, and then do some initial setup to get it ready for development.
 
 <table>

diff --git a/...development/core/frameworks_libraries/ember_interactivity_events_state/index.md b/...development/core/frameworks_libraries/ember_interactivity_events_state/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Ember_structure_componentization","Learn_web_development/Core/Frameworks_libraries/Ember_conditional_footer", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 At this point we'll start adding some interactivity to our app, providing the ability to add and display new todo items. Along the way, we'll look at using events in Ember, creating component classes to contain JavaScript code to control interactive features, and setting up a service to keep track of the data state of our app.
 
 <table>

diff --git a/.../en-us/learn_web_development/core/frameworks_libraries/ember_resources/index.md b/.../en-us/learn_web_development/core/frameworks_libraries/ember_resources/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenu("Learn_web_development/Core/Frameworks_libraries/Ember_routing", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Our final Ember article provides you with a list of resources that you can use to go further in your learning, plus some useful troubleshooting and other information.
 
 <table>

diff --git a/files/en-us/learn_web_development/core/frameworks_libraries/ember_routing/index.md b/files/en-us/learn_web_development/core/frameworks_libraries/ember_routing/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Ember_conditional_footer","Learn_web_development/Core/Frameworks_libraries/Ember_resources", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In this article we learn about **routing**, or URL-based filtering as it is sometimes referred to. We'll use it to provide a unique URL for each of the three todo views — "All", "Active", and "Completed".
 
 <table>

diff --git a/...development/core/frameworks_libraries/ember_structure_componentization/index.md b/...development/core/frameworks_libraries/ember_structure_componentization/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Ember_getting_started","Learn_web_development/Core/Frameworks_libraries/Ember_interactivity_events_state", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Ember articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In this article we'll get right on with planning out the structure of our TodoMVC Ember app, adding in the HTML for it, and then breaking that HTML structure into components.
 
 <table>

diff --git a/files/en-us/learn_web_development/core/frameworks_libraries/index.md b/files/en-us/learn_web_development/core/frameworks_libraries/index.md
@@ -62,6 +62,9 @@ Your code will be richer and more professional as a result, and you'll be able t
 
 ## Other framework choices
 
+> [!NOTE]
+> This section of MDN is no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 ### Ember tutorials
 
 > [!NOTE]

diff --git a/...n-us/learn_web_development/core/frameworks_libraries/svelte_components/index.md b/...n-us/learn_web_development/core/frameworks_libraries/svelte_components/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_variables_props","Learn_web_development/Core/Frameworks_libraries/Svelte_reactivity_lifecycle_accessibility", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In the last article we started developing our to-do list app. The central objective of this article is to look at how to break our app into manageable components and share information between them. We'll componentize our app, then add more functionality to allow users to update existing components.
 
 <table>

diff --git a/...learn_web_development/core/frameworks_libraries/svelte_deployment_next/index.md b/...learn_web_development/core/frameworks_libraries/svelte_deployment_next/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenu("Learn_web_development/Core/Frameworks_libraries/Svelte_TypeScript", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In the previous article we learned about Svelte's TypeScript support, and how to use it to make your application more robust. In this final article we will look at how to deploy your application and get it online, and also share some of the resources that you should go on to, to continue your Svelte learning journey.
 
 <table>

diff --git a/...learn_web_development/core/frameworks_libraries/svelte_getting_started/index.md b/...learn_web_development/core/frameworks_libraries/svelte_getting_started/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{NextMenu("Learn_web_development/Core/Frameworks_libraries/Svelte_Todo_list_beginning", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In this article we'll provide a quick introduction to the [Svelte framework](https://svelte.dev/). We will see how Svelte works and what sets it apart from the rest of the frameworks and tools we've seen so far. Then we will learn how to set up our development environment, create a sample app, understand the structure of the project, and see how to run it locally and build it for production.
 
 <table>

diff --git a/...nt/core/frameworks_libraries/svelte_reactivity_lifecycle_accessibility/index.md b/...nt/core/frameworks_libraries/svelte_reactivity_lifecycle_accessibility/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_components","Learn_web_development/Core/Frameworks_libraries/Svelte_stores", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In the last article we added more features to our to-do list and started to organize our app into components. In this article we will add the app's final features and further componentize our app. We will learn how to deal with reactivity issues related to updating objects and arrays. To avoid common pitfalls, we'll have to dig a little deeper into Svelte's reactivity system. We'll also look at solving some accessibility focus issues, and more besides.
 
 <table>

diff --git a/files/en-us/learn_web_development/core/frameworks_libraries/svelte_stores/index.md b/files/en-us/learn_web_development/core/frameworks_libraries/svelte_stores/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_reactivity_lifecycle_accessibility","Learn_web_development/Core/Frameworks_libraries/Svelte_TypeScript", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In the last article we completed the development of our app, finished organizing it into components, and discussed some advanced techniques for dealing with reactivity, working with DOM nodes, and exposing component functionality. In this article we will show another way to handle state management in Svelte: [Stores](https://learn.svelte.dev/tutorial/writable-stores). Stores are global data repositories that hold values. Components can subscribe to stores and receive notifications when their values change.
 
 <table>

diff --git a/...n_web_development/core/frameworks_libraries/svelte_todo_list_beginning/index.md b/...n_web_development/core/frameworks_libraries/svelte_todo_list_beginning/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_getting_started","Learn_web_development/Core/Frameworks_libraries/Svelte_variables_props", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now that we have a basic understanding of how things work in Svelte, we can start building our example app: a to-do list. In this article we will first have a look at the desired functionality of our app, and then we'll create a `Todos.svelte` component and put static markup and styles in place, leaving everything ready to start developing our to-do list app features, which we'll go on to in subsequent articles.
 
 We want our users to be able to browse, add and delete tasks, and also to mark them as complete. This will be the basic functionality that we'll be developing in this tutorial series, and we'll look at some more advanced concepts along the way too.

diff --git a/...n-us/learn_web_development/core/frameworks_libraries/svelte_typescript/index.md b/...n-us/learn_web_development/core/frameworks_libraries/svelte_typescript/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_stores","Learn_web_development/Core/Frameworks_libraries/Svelte_deployment_next", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In the last article we learned about Svelte stores and even implemented our own custom store to persist the app's information to Web Storage. We also had a look at using the transition directive to implement animations on DOM elements in Svelte.
 
 We will now learn how to use TypeScript in Svelte applications. First we'll learn what TypeScript is and what benefits it can bring us. Then we'll see how to configure our project to work with TypeScript files. Finally we will go over our app and see what modifications we have to make to fully take advantage of TypeScript features.

diff --git a/...learn_web_development/core/frameworks_libraries/svelte_variables_props/index.md b/...learn_web_development/core/frameworks_libraries/svelte_variables_props/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Svelte_Todo_list_beginning","Learn_web_development/Core/Frameworks_libraries/Svelte_components", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Svelte articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now that we have our markup and styles ready, we can start developing the required features for our Svelte to-do list app. In this article we'll be using variables and props to make our app dynamic, allowing us to add and delete to-dos, mark them as complete, and filter them by status.
 
 <table>

diff --git a/...earn_web_development/core/frameworks_libraries/vue_computed_properties/index.md b/...earn_web_development/core/frameworks_libraries/vue_computed_properties/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Vue_styling","Learn_web_development/Core/Frameworks_libraries/Vue_conditional_rendering", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Vue articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 In this article we'll add a counter that displays the number of completed todo items, using a feature of Vue called computed properties. These work similarly to methods, but only re-run when one of their dependencies changes.
 
 <table>

diff --git a/...rn_web_development/core/frameworks_libraries/vue_conditional_rendering/index.md b/...rn_web_development/core/frameworks_libraries/vue_conditional_rendering/index.md
@@ -7,6 +7,9 @@ sidebar: learnsidebar
 
 {{PreviousMenuNext("Learn_web_development/Core/Frameworks_libraries/Vue_computed_properties","Learn_web_development/Core/Frameworks_libraries/Vue_refs_focus_management", "Learn_web_development/Core/Frameworks_libraries")}}
 
+> [!NOTE]
+> The MDN Vue articles are no longer being maintained and will be removed from the website in 3 months (by August 20, 2026). The content will be archived in the [MDN Museum](https://github.com/mdn/museum). See [this discussion](https://github.com/orgs/mdn/discussions/827) for further information.
+
 Now it is time to add one of the major parts of functionality that we're still missing — the ability to edit existing todo items. To do this, we will take advantage of Vue's conditional rendering capabilities — namely `v-if` and `v-else` — to allow us to toggle between the existing todo item view, and an edit view where you can update todo item labels. We'll also look at adding functionality to delete todo items.
 
 <table>