docs(nextjs): Document new experimental turbopack options

docs/platforms/javascript/common/configuration/filtering.mdx

@@ -57,7 +57,7 @@ This integration can be very helpful in reducing noise that's not related to you
 
 <Alert>
 
-**Prerequisite**: To use the `thirdPartyErrorFilterIntegration`, ensure you are using a bundler and one of [Sentry's bundler plugins](https://github.com/getsentry/sentry-javascript-bundler-plugins).
+**Prerequisite**: To use the `thirdPartyErrorFilterIntegration`, ensure you are using a bundler and one of [Sentry's bundler plugins](https://github.com/getsentry/sentry-javascript-bundler-plugins). For **Next.js with Turbopack**, use the [`_experimental.turbopackApplicationKey`](/platforms/javascript/guides/nextjs/configuration/build/#_experimentalturbopackapplicationkey) build option instead.
 
 </Alert>
 
@@ -157,7 +157,8 @@ See <PlatformLink to="/configuration/options/#beforeBreadcrumb">beforeBreadcrumb
 
 Hints are available in two places:
 
-1. <PlatformIdentifier name="before-send" /> / <PlatformIdentifier name="before-breadcrumb" />
+1. <PlatformIdentifier name="before-send" /> /
+   <PlatformIdentifier name="before-breadcrumb" />
 2. Event processors added via `Sentry.addEventProcessor()`
 
 Event and breadcrumb `hints` are objects containing various types of information used to put together an event or a breadcrumb. Typically `hints` hold the original exception so that additional data can be extracted or grouping can be affected.

docs/platforms/javascript/guides/nextjs/configuration/build/index.mdx

@@ -375,3 +375,86 @@ A list of React component names to exclude from component annotation.
 Configuration options for tree shaking. Refer to the [tree shaking documentation](/platforms/javascript/guides/nextjs/configuration/tree-shaking) for more details.
 
 </SdkOption>
+
+## Experimental Turbopack Options
+
+<Alert level="warning">
+  These options are experimental and require **Next.js 16+**. Their API may
+  change in future releases.
+</Alert>
+
+<SdkOption name="_experimental.turbopackReactComponentAnnotation.enabled" type="boolean" defaultValue="false">
+
+<AvailableSince version="10.43.0" />
+
+Enables React component name annotation for Turbopack builds. This is the Turbopack equivalent of [`webpack.reactComponentAnnotation`](#webpackreactcomponentannotationenabled).
+
+When enabled, React components are annotated with `data-sentry-component`, `data-sentry-element`, and `data-sentry-source-file` attributes at build time. These attributes allow Sentry to identify which components users interacted with in [Session Replay](/platforms/javascript/guides/nextjs/session-replay/) and [breadcrumbs](/platforms/javascript/guides/nextjs/enriching-events/breadcrumbs/).
+
+```javascript {filename:next.config.ts}
+import { withSentryConfig } from "@sentry/nextjs";
+
+export default withSentryConfig(nextConfig, {
+  _experimental: {
+    turbopackReactComponentAnnotation: {
+      enabled: true,
+    },
+  },
+});
+```
+
+</SdkOption>
+
+<SdkOption name="_experimental.turbopackReactComponentAnnotation.ignoredComponents" type="string[]">
+
+A list of React component names to exclude from annotation in Turbopack builds.
+
+```javascript {filename:next.config.ts}
+import { withSentryConfig } from "@sentry/nextjs";
+
+export default withSentryConfig(nextConfig, {
+  _experimental: {
+    turbopackReactComponentAnnotation: {
+      enabled: true,
+      ignoredComponents: ["SensitiveForm", "InternalDebugPanel"],
+    },
+  },
+});
+```
+
+</SdkOption>
+
+<SdkOption name="_experimental.turbopackApplicationKey" type="string">
+
+<AvailableSince version="10.41.0" />
+
+Application key used by [`thirdPartyErrorFilterIntegration`](/platforms/javascript/configuration/filtering/#using-thirdpartyerrorfilterintegration) to distinguish first-party code from third-party code in Turbopack builds. This is the Turbopack equivalent of setting `applicationKey` via the Sentry Webpack Plugin.
+
+When set, a Turbopack loader injects `_sentryModuleMetadata` into every first-party module, enabling the `thirdPartyErrorFilterIntegration` to filter errors from browser extensions, injected scripts, and third-party widgets.
+
+The value must match the `filterKeys` array in your `thirdPartyErrorFilterIntegration` configuration.
+
+```javascript {filename:next.config.ts}
+import { withSentryConfig } from "@sentry/nextjs";
+
+export default withSentryConfig(nextConfig, {
+  _experimental: {
+    turbopackApplicationKey: "my-nextjs-app",
+  },
+});
+```
+
+```javascript {filename:instrumentation-client.ts}
+import * as Sentry from "@sentry/nextjs";
+
+Sentry.init({
+  integrations: [
+    Sentry.thirdPartyErrorFilterIntegration({
+      filterKeys: ["my-nextjs-app"],
+      behaviour: "drop-error-if-exclusively-contains-third-party-frames",
+    }),
+  ],
+});
+```
+
+</SdkOption>

docs/platforms/javascript/guides/nextjs/manual-setup/webpack-setup.mdx

@@ -22,7 +22,7 @@ For a complete reference of all build configuration options, see the [Build Conf
 | Middleware instrumentation      | Automatic via Next.js telemetry | Build-time code injection                            |
 | Source map upload               | Post-compile during build       | During build via plugin (default)                    |
 | Route exclusion                 | Not supported                   | Supported via `webpack.excludeServerRoutes`          |
-| React component annotation      | Not supported                   | Supported via `webpack.reactComponentAnnotation`     |
+| React component annotation      | Experimental (Next.js 16+)      | Supported via `webpack.reactComponentAnnotation`     |
 | Logger tree-shaking             | Not supported                   | Supported via `webpack.treeshake.removeDebugLogging` |
 
 ## Auto-Instrumentation Options
@@ -268,8 +268,10 @@ export async function submitForm(formData: FormData) {
 With Webpack, you can enable React component name tracking. This annotates React components with `data-sentry-*` attributes that allow Sentry to identify which components users interacted with in [Session Replay](/platforms/javascript/guides/nextjs/session-replay/) and [breadcrumbs](/platforms/javascript/guides/nextjs/enriching-events/breadcrumbs/).
 
 <Alert level="info">
-  This feature is only available with Webpack. Turbopack does not support React
-  component annotation.
+  For Turbopack builds, component annotation is available as an experimental
+  feature requiring Next.js 16+. See
+  [`_experimental.turbopackReactComponentAnnotation`](/platforms/javascript/guides/nextjs/configuration/build/#_experimentalturbopackreactcomponentannotationenabled)
+  in the build options reference.
 </Alert>
 
 <SplitLayout>

platform-includes/configuration/filter-application-key/javascript.nextjs.mdx

@@ -1,3 +1,5 @@
+**Webpack:**
+
 ```javascript {tabTitle:CJS} {filename:next.config.js} {3}
 module.exports = withSentryConfig(nextConfig, {
   unstable_sentryWebpackPluginOptions: {
@@ -13,3 +15,13 @@ export default withSentryConfig(nextConfig, {
   },
 });
 ```
+
+**Turbopack (Next.js 16+, experimental):**
+
+```javascript {filename:next.config.ts} {3}
+export default withSentryConfig(nextConfig, {
+  _experimental: {
+    turbopackApplicationKey: "your-custom-application-key",
+  },
+});
+```