GraphiQL 5 blogpost annoncement

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 !src/pages/blog/2024-04-11-announcing-new-graphql-website/index.mdx
 !src/pages/blog/2024-08-15-graphql-local-initiative.mdx
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-!src/pages/blog/2025-06-01-graphiql-4/index.mdx
+!src/pages/blog/2025-05-31-graphiql-4/index.mdx
+!src/pages/blog/2025-06-10-graphiql-5/index.mdx
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src/pages/blog/2025-06-10-graphiql-5/index.mdx

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+---
+title: The New GraphiQL 5 is Released; Press F1!
+tags: [announcements, grants]
+date: 2025-06-10
+byline: Dimitri Postolov
+---
+
+import { Callout } from "nextra/components"
+
+<figure className="mt-6">
+  <>![GraphiQL 5 with Monaco Editor Preview](./graphiql-5.png)</>
+  {/* prettier-ignore */}
+  <figcaption className="mt-2 text-center">GraphiQL 5 with Monaco Editor Preview</figcaption>
+</figure>
+
+This post marks the completion of **8 weeks** of work on my GraphiQL grant,
+sponsored by the **GraphQL Foundation**.
+
+I'm thrilled to announce the release of the all-new **GraphiQL 5**, powered by
+the latest version of the [Monaco editor][monaco-editor]! 🎉
+
+I also added support for comments in the **Variables** and **Headers** editors.
+This release is a major step forward.
+
+> [The original issue for integrating the Monaco editor](https://github.com/graphql/graphiql/issues/2326)
+> was opened over **3 years ago**.<br/> And the
+> [issue requesting comments support in the Variables editor](https://github.com/graphql/graphiql/issues/780)
+> was opened over **6 years ago**!
+
+As a primary maintainer of the GraphiQL IDE, I previously led the releases of
+GraphiQL 3 and [GraphiQL 4](/blog/2025-05-31-graphiql-4). This new version marks
+another exciting milestone in the evolution of the project.
+
+## What's New
+
+### Monaco Editor Migration
+
+GraphiQL 5 now uses [Monaco editor][monaco-editor] as default editor, the same
+editor used in [VSCode](https://code.visualstudio.com).
+
+Monaco editor runs heavy language features (like syntax analysis, linting, and
+IntelliSense) in
+[Web Workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers),
+keeping the UI smooth and responsive.
+
+You can now delight your users with identical behavior to Visual Studio Code,
+meaning intelligent autocompletion, hover tooltips, go to definition, find
+references. I've also added
+[`monaco-graphql`](https://github.com/graphql/graphiql/tree/main/packages/monaco-graphql)
+integration in **Query** and **Variables** editor.
+
+<Callout type="info">
+  Clicking on a reference in the Query editor now works by holding `Cmd` on
+  macOS or `Ctrl` on Windows/Linux.
+</Callout>
+
+### Support for Comments in Variables and Headers Editors
+
+Thanks to the migration to Monaco Editor, another long-awaited feature has been
+implemented. The **Variables** and **Headers** editors now support comments and
+use the **JSONC** language internally.
+
+In the **Variables** and **Headers** payloads, all comments are automatically
+stripped before the request is executed — the content in the editors **remains
+unchanged**.
+
+### UMD Builds Are Removed
+
+Previously in GraphiQL 4 UMD builds were marked as deprecated, in GraphiQL 5
+they were removed completely.
+
+We suggest using ESM-based CDNs like [esm.sh][esm.sh] to import GraphiQL in your
+projects.
+
+I updated [GraphiQL CDN example][graphiql-cdn] to show how to use GraphiQL with
+[esm.sh][esm.sh] including how to import and setup workers.
+
+### Examples Update
+
+**GraphiQL with Parcel** and **GraphiQL with Create React App** examples were
+removed.
+
+In addition to updated [GraphiQL CDN example][graphiql-cdn], I've added 2 new
+examples
+[GraphiQL with Vite](https://github.com/graphql/graphiql/tree/main/examples/graphiql-vite)
+and
+[GraphiQL with Next.js](https://github.com/graphql/graphiql/tree/main/examples/graphiql-nextjs)
+and App Router.
+
+### Customizable Default Plugins
+
+GraphiQL 5 lets you take full control over the UI by allowing complete
+customization of its plugins.
+
+#### Removing All Default Plugins
+
+To remove all default plugins (currently **Doc Explorer** and **History**), set
+`referencePlugin={null}` and pass an empty array to the `plugins` prop:
+
+```jsx
+import { GraphiQL } from "graphiql"
+
+const myPlugins = []
+
+function App() {
+  return (
+    <GraphiQL
+      referencePlugin={null} // Removes Doc Explorer plugin
+      plugins={myPlugins} // Removes History plugin
+    />
+  )
+}
+```
+
+<Callout type="info">
+  If you're using a custom Doc Explorer, pass it to the `referencePlugin` prop —
+  **not** the `plugins` array. It will be automatically included and always
+  rendered first.
+</Callout>
+
+#### Adding Plugins While Keeping Defaults
+
+If you're adding custom plugins (e.g. the **Explorer** plugin) and want to keep
+the **History** plugin, you must explicitly include it in the `plugins` array:
+
+```jsx
+import { GraphiQL, HISTORY_PLUGIN } from "graphiql"
+import { explorerPlugin } from "@graphiql/plugin-explorer"
+
+const myPlugins = [HISTORY_PLUGIN, explorerPlugin()]
+
+function App() {
+  return <GraphiQL plugins={myPlugins} />
+}
+```
+
+### Removed Props
+
+- `readOnly`
+- `keyMap` - to use Vim or Emacs keybindings in Monaco, you can use community
+  plugins such as [Monaco Vim](https://github.com/brijeshb42/monaco-vim) or
+  [Monaco Emacs](https://github.com/aioutecism/monaco-emacs)
+- `validationRules` - use custom GraphQL worker, see
+  [Monaco GraphQL docs](https://github.com/graphql/graphiql/tree/main/packages/monaco-graphql#custom-webworker-for-passing-non-static-config-to-worker)
+
+  <figure className="mt-6">
+    {/* prettier-ignore */}
+    <>![Example of custom GraphQL validation rules](./custom-rules-example.png)</>
+    {/* prettier-ignore */}
+    <figcaption className="mt-2 text-center">Example of custom GraphQL validation rules</figcaption>
+  </figure>
+
+### Additional Changes
+
+The shortcut to focus on the Doc Explorer search input is now `Cmd/Ctrl+Alt+K`
+instead of the previous `Cmd/Ctrl+K`. This was changed because monaco-editor has
+a built-in `Cmd/Ctrl+K` command.
+
+## How to Update
+
+Update `graphiql` using your favorite package manager:
+
+```sh npm2yarn
+npm i graphiql@latest
+```
+
+### Setup Monaco Workers
+
+You need to set up Monaco workers in your project:
+
+- For **Vite** projects you must import:
+
+  ```js
+  import "graphiql/setup-workers/vite"
+  ```
+
+  <Callout type="info">
+    See [Vite
+    example](https://github.com/graphql/graphiql/blob/main/examples/graphiql-vite/src/App.jsx).
+  </Callout>
+
+- For Webpack projects such as **Next.js** you must import:
+
+  ```js
+  import "graphiql/setup-workers/webpack"
+  ```
+
+  <Callout type="info">
+    See [Next.js
+    example](https://github.com/graphql/graphiql/blob/main/examples/graphiql-nextjs/src/app/page.tsx).
+  </Callout>
+
+- For ESM-based CDN usages, you must use
+  [`?worker` query](https://esm.sh/#web-worker) to load the module as a web
+  worker:
+
+  ```js /?worker/
+  import createJSONWorker from "https://esm.sh/monaco-editor/esm/vs/language/json/json.worker.js?worker"
+  import createGraphQLWorker from "https://esm.sh/monaco-graphql/esm/graphql.worker.js?worker"
+  import createEditorWorker from "https://esm.sh/monaco-editor/esm/vs/editor/editor.worker.js?worker"
+
+  globalThis.MonacoEnvironment = {
+    getWorker(_workerId, label) {
+      switch (label) {
+        case "json":
+          return createJSONWorker()
+        case "graphql":
+          return createGraphQLWorker()
+      }
+      return createEditorWorker()
+    }
+  }
+  ```
+
+  <Callout type="info">
+    See [CDN
+    example](https://github.com/graphql/graphiql/blob/main/examples/graphiql-cdn/index.html).
+  </Callout>
+
+## Stay Connected
+
+Follow me, **Dima Machina**, on [𝕏](https://x.com/dimaMachina_) and
+[GitHub](https://github.com/dimaMachina) to stay up to date with the latest
+updates!
+
+<Callout>
+  I am available for consulting and open to new and exciting challenges. Please
+  feel free to get in touch.
+</Callout>
+
+[monaco-editor]: https://github.com/microsoft/monaco-editor
+[graphiql-cdn]:
+  https://github.com/graphql/graphiql/blob/main/examples/graphiql-cdn/index.html
+[esm.sh]: https://esm.sh