diff --git a/packages/astro/e2e/custom-client-directives.test.js b/packages/astro/e2e/custom-client-directives.test.js
index e0787109ef83..2766ff205de6 100644
--- a/packages/astro/e2e/custom-client-directives.test.js
+++ b/packages/astro/e2e/custom-client-directives.test.js
@@ -43,7 +43,7 @@ test.describe('Custom Client Directives - build server', () => {
 			adapter: testAdapter({
 				extendAdapter: {
 					adapterFeatures: {
-						forceServerOutput: false,
+						buildOutput: 'static',
 					},
 				},
 			}),
diff --git a/packages/astro/src/core/build/generate.ts b/packages/astro/src/core/build/generate.ts
index fc96184c09b6..d59e9966e99f 100644
--- a/packages/astro/src/core/build/generate.ts
+++ b/packages/astro/src/core/build/generate.ts
@@ -80,7 +80,6 @@ export async function generatePages(options: StaticBuildOptions, internals: Buil
 	// If we don't delete it here, it's technically not impossible (albeit improbable) for it to leak
 	if (ssr && !hasPrerenderedPages(internals)) {
 		delete globalThis?.astroAsset?.addStaticImage;
-		return;
 	}
 
 	const verb = ssr ? 'prerendering' : 'generating';
@@ -417,7 +416,7 @@ async function generatePath(
 		url,
 		headers: new Headers(),
 		logger,
-		staticLike: true,
+		isPrerendered: true,
 	});
 	const renderContext = RenderContext.create({ pipeline, pathname, request, routeData: route });
 
diff --git a/packages/astro/src/core/build/index.ts b/packages/astro/src/core/build/index.ts
index 2cc37f5fd2c5..e93bb36eae88 100644
--- a/packages/astro/src/core/build/index.ts
+++ b/packages/astro/src/core/build/index.ts
@@ -125,7 +125,10 @@ class AstroBuilder {
 			injectImageEndpoint(this.settings, this.manifest, 'build');
 		}
 
+		await runHookConfigDone({ settings: this.settings, logger: logger, command: 'build' });
+
 		// If we're building for the server, we need to ensure that an adapter is installed.
+		// If the adapter installed does not support a server output, an error will be thrown when the adapter is added, so no need to check here.
 		if (!this.settings.config.adapter && this.settings.buildOutput === 'server') {
 			throw new AstroError(AstroErrorData.NoAdapterInstalled);
 		}
@@ -147,7 +150,6 @@ class AstroBuilder {
 				manifest: this.manifest,
 			},
 		);
-		await runHookConfigDone({ settings: this.settings, logger: logger });
 
 		const { syncInternal } = await import('../sync/index.js');
 		await syncInternal({
@@ -239,7 +241,7 @@ class AstroBuilder {
 				logger: this.logger,
 				timeStart: this.timer.init,
 				pageCount: pageNames.length,
-				buildMode: this.settings.config.output,
+				buildMode: this.settings.buildOutput!, // buildOutput is always set at this point
 			});
 		}
 	}
diff --git a/packages/astro/src/core/build/static-build.ts b/packages/astro/src/core/build/static-build.ts
index 3fffe9626424..20daa6e7b85e 100644
--- a/packages/astro/src/core/build/static-build.ts
+++ b/packages/astro/src/core/build/static-build.ts
@@ -3,7 +3,7 @@ import path from 'node:path';
 import { fileURLToPath, pathToFileURL } from 'node:url';
 import { teardown } from '@astrojs/compiler';
 import glob from 'fast-glob';
-import { bgGreen, bgMagenta, black, green } from 'kleur/colors';
+import { bgGreen, black, green } from 'kleur/colors';
 import * as vite from 'vite';
 import { PROPAGATED_ASSET_FLAG } from '../../content/consts.js';
 import {
@@ -150,12 +150,11 @@ export async function staticBuild(
 			settings.timer.start('Server generate');
 			await generatePages(opts, internals);
 			await cleanStaticOutput(opts, internals);
-			opts.logger.info(null, `\n${bgMagenta(black(' finalizing server assets '))}\n`);
 			await ssrMoveAssets(opts);
 			settings.timer.end('Server generate');
 			return;
 		}
-		default: // `settings.buildOutput` will always be one of the above, but TS doesn't know that
+		default: // `settings.buildOutput` will always be one of the above at this point, but TS doesn't know that
 			return;
 	}
 }
diff --git a/packages/astro/src/core/dev/adapter-validation.ts b/packages/astro/src/core/dev/adapter-validation.ts
new file mode 100644
index 000000000000..43471d24870c
--- /dev/null
+++ b/packages/astro/src/core/dev/adapter-validation.ts
@@ -0,0 +1,50 @@
+import { getAdapterStaticRecommendation } from '../../integrations/features-validation.js';
+import type { AstroSettings } from '../../types/astro.js';
+import type { AstroAdapter } from '../../types/public/integrations.js';
+import { AstroError, AstroErrorData } from '../errors/index.js';
+import type { Logger } from '../logger/core.js';
+
+let hasWarnedMissingAdapter = false;
+
+export function warnMissingAdapter(logger: Logger, settings: AstroSettings) {
+	if (hasWarnedMissingAdapter) return;
+	if (settings.buildOutput === 'server' && !settings.config.adapter) {
+		logger.warn(
+			'config',
+			'This project contains server-rendered routes, but no adapter is installed. This is fine for development, but an adapter will be required to build your site for production.',
+		);
+		hasWarnedMissingAdapter = true;
+	}
+}
+
+export function validateSetAdapter(
+	logger: Logger,
+	settings: AstroSettings,
+	adapter: AstroAdapter,
+	maybeConflictingIntegration: string,
+	command?: 'dev' | 'build' | string,
+) {
+	if (settings.adapter && settings.adapter.name !== adapter.name) {
+		throw new Error(
+			`Integration "${maybeConflictingIntegration}" conflicts with "${settings.adapter.name}". You can only configure one deployment integration.`,
+		);
+	}
+
+	if (settings.buildOutput === 'server' && adapter.adapterFeatures?.buildOutput === 'static') {
+		// If the adapter is not compatible with the build output, throw an error
+		if (command === 'build') {
+			const adapterRecommendation = getAdapterStaticRecommendation(adapter.name);
+
+			throw new AstroError({
+				...AstroErrorData.AdapterSupportOutputMismatch,
+				message: AstroErrorData.AdapterSupportOutputMismatch.message(adapter.name),
+				hint: adapterRecommendation ? adapterRecommendation : undefined,
+			});
+		} else if (command === 'dev') {
+			logger.warn(
+				null,
+				`The adapter ${adapter.name} does not support emitting a server output, but the project contain server-rendered pages. Your project will not build correctly.`,
+			);
+		}
+	}
+}
diff --git a/packages/astro/src/core/dev/container.ts b/packages/astro/src/core/dev/container.ts
index 1fea20620b0a..c1c13e0c70ab 100644
--- a/packages/astro/src/core/dev/container.ts
+++ b/packages/astro/src/core/dev/container.ts
@@ -18,6 +18,7 @@ import { apply as applyPolyfill } from '../polyfill.js';
 import { injectDefaultDevRoutes } from '../routing/dev-default.js';
 import { createRouteManifest } from '../routing/index.js';
 import { syncInternal } from '../sync/index.js';
+import { warnMissingAdapter } from './adapter-validation.js';
 
 export interface Container {
 	fs: typeof nodeFs;
@@ -87,6 +88,10 @@ export async function createContainer({
 
 	manifest = injectDefaultDevRoutes(settings, devSSRManifest, manifest);
 
+	await runHookConfigDone({ settings, logger, command: 'dev' });
+
+	warnMissingAdapter(logger, settings);
+
 	const viteConfig = await createVite(
 		{
 			mode: 'development',
@@ -107,7 +112,6 @@ export async function createContainer({
 		},
 	);
 
-	await runHookConfigDone({ settings, logger });
 	await syncInternal({
 		settings,
 		logger,
diff --git a/packages/astro/src/core/errors/errors-data.ts b/packages/astro/src/core/errors/errors-data.ts
index 8c972a5fd81a..cc8b1023c9b5 100644
--- a/packages/astro/src/core/errors/errors-data.ts
+++ b/packages/astro/src/core/errors/errors-data.ts
@@ -73,10 +73,8 @@ export const PrerenderClientAddressNotAvailable = {
  */
 export const StaticClientAddressNotAvailable = {
 	name: 'StaticClientAddressNotAvailable',
-	title: '`Astro.clientAddress` is not available in static mode.',
-	// TODO: Update this for the new static mode? I'm not sure this error can even still happen.
-	message:
-		"`Astro.clientAddress` is only available when using `output: 'server'` or `output: 'hybrid'`. Update your Astro config if you need SSR features.",
+	title: '`Astro.clientAddress` is not available in prerendered pages.',
+	message: '`Astro.clientAddress` is only available on pages that are server-rendered.',
 	hint: 'See https://docs.astro.build/en/guides/server-side-rendering/ for more information on how to enable SSR.',
 } satisfies ErrorData;
 /**
@@ -396,6 +394,24 @@ export const NoAdapterInstalled = {
 	message: `Cannot use server-rendered pages without an adapter. Please install and configure the appropriate server adapter for your final deployment.`,
 	hint: 'See https://docs.astro.build/en/guides/server-side-rendering/ for more information.',
 } satisfies ErrorData;
+
+/**
+ * @docs
+ * @see
+ * - [Server-side Rendering](https://docs.astro.build/en/guides/server-side-rendering/)
+ * @description
+ * The currently configured adapter does not support server-side rendering, which is required for the current project setup.
+ *
+ * Depending on your adapter, there may be a different entrypoint to use for server-side rendering. For example, the `@astrojs/vercel` adapter has a `@astrojs/vercel/static` entrypoint for static rendering, and a `@astrojs/vercel/serverless` entrypoint for server-side rendering.
+ *
+ */
+export const AdapterSupportOutputMismatch = {
+	name: 'AdapterSupportOutputMismatch',
+	title: 'Adapter does not support server output.',
+	message: (adapterName: string) =>
+		`The \`${adapterName}\` adapter is configured to output a static website, but the project contains server-rendered pages. Please install and configure the appropriate server adapter for your final deployment.`,
+} satisfies ErrorData;
+
 /**
  * @docs
  * @description
diff --git a/packages/astro/src/core/preview/index.ts b/packages/astro/src/core/preview/index.ts
index 88338c606353..4d1aaba98906 100644
--- a/packages/astro/src/core/preview/index.ts
+++ b/packages/astro/src/core/preview/index.ts
@@ -40,7 +40,7 @@ export default async function preview(inlineConfig: AstroInlineConfig): Promise<
 	// Create a route manifest so we can know if the build output is a static site or not
 	await createRouteManifest({ settings: settings, cwd: inlineConfig.root }, logger);
 
-	await runHookConfigDone({ settings: settings, logger: logger });
+	await runHookConfigDone({ settings: settings, logger: logger, command: 'preview' });
 
 	if (settings.buildOutput === 'static') {
 		if (!fs.existsSync(settings.config.outDir)) {
diff --git a/packages/astro/src/core/render-context.ts b/packages/astro/src/core/render-context.ts
index 1e353394362d..7ef7a0767d94 100644
--- a/packages/astro/src/core/render-context.ts
+++ b/packages/astro/src/core/render-context.ts
@@ -480,17 +480,15 @@ export class RenderContext {
 			return Reflect.get(request, clientAddressSymbol) as string;
 		}
 
-		if (pipeline.serverLike) {
-			if (request.body === null) {
-				throw new AstroError(AstroErrorData.PrerenderClientAddressNotAvailable);
-			}
+		if (request.body === null) {
+			throw new AstroError(AstroErrorData.PrerenderClientAddressNotAvailable);
+		}
 
-			if (pipeline.adapterName) {
-				throw new AstroError({
-					...AstroErrorData.ClientAddressNotAvailable,
-					message: AstroErrorData.ClientAddressNotAvailable.message(pipeline.adapterName),
-				});
-			}
+		if (pipeline.adapterName) {
+			throw new AstroError({
+				...AstroErrorData.ClientAddressNotAvailable,
+				message: AstroErrorData.ClientAddressNotAvailable.message(pipeline.adapterName),
+			});
 		}
 
 		throw new AstroError(AstroErrorData.StaticClientAddressNotAvailable);
diff --git a/packages/astro/src/core/request.ts b/packages/astro/src/core/request.ts
index 9b2dc07ca0fe..78d2979b5f90 100644
--- a/packages/astro/src/core/request.ts
+++ b/packages/astro/src/core/request.ts
@@ -20,7 +20,7 @@ export interface CreateRequestOptions {
 	 *
 	 * @default false
 	 */
-	staticLike?: boolean;
+	isPrerendered?: boolean;
 }
 
 const clientAddressSymbol = Symbol.for('astro.clientAddress');
@@ -41,10 +41,10 @@ export function createRequest({
 	body = undefined,
 	logger,
 	locals,
-	staticLike = false,
+	isPrerendered = false,
 }: CreateRequestOptions): Request {
 	// headers are made available on the created request only if the request is for a page that will be on-demand rendered
-	const headersObj = staticLike
+	const headersObj = isPrerendered
 		? undefined
 		: headers instanceof Headers
 			? headers
@@ -58,7 +58,8 @@ export function createRequest({
 
 	if (typeof url === 'string') url = new URL(url);
 
-	if (staticLike) {
+	// Remove search parameters if the request is for a page that will be on-demand rendered
+	if (isPrerendered) {
 		url.search = '';
 	}
 
@@ -66,11 +67,11 @@ export function createRequest({
 		method: method,
 		headers: headersObj,
 		// body is made available only if the request is for a page that will be on-demand rendered
-		body: staticLike ? null : body,
+		body: isPrerendered ? null : body,
 	});
 
-	if (staticLike) {
-		// Warn when accessing headers in SSG mode
+	if (isPrerendered) {
+		// Warn when accessing headers in prerendered pages
 		const _headers = request.headers;
 		const headersDesc = Object.getOwnPropertyDescriptor(request, 'headers') || {};
 		Object.defineProperty(request, 'headers', {
@@ -78,7 +79,7 @@ export function createRequest({
 			get() {
 				logger.warn(
 					null,
-					`\`Astro.request.headers\` is unavailable in "static" output mode, and in prerendered pages within "hybrid" and "server" output modes. If you need access to request headers, make sure that \`output\` is configured as either \`"server"\` or \`output: "hybrid"\` in your config file, and that the page accessing the headers is rendered on-demand.`,
+					`\`Astro.request.headers\` is not available on prerendered pages. If you need access to request headers, make sure that the page is server rendered using \`export const prerender = false;\` or by setting \`output\` to \`"server"\` in your Astro config to make all your pages server rendered.`,
 				);
 				return _headers;
 			},
diff --git a/packages/astro/src/core/routing/manifest/create.ts b/packages/astro/src/core/routing/manifest/create.ts
index e22eb8de1189..834c37efe226 100644
--- a/packages/astro/src/core/routing/manifest/create.ts
+++ b/packages/astro/src/core/routing/manifest/create.ts
@@ -8,7 +8,6 @@ import { fileURLToPath } from 'node:url';
 import { bold } from 'kleur/colors';
 import pLimit from 'p-limit';
 import { toRoutingStrategy } from '../../../i18n/utils.js';
-import { runHookRouteSetup } from '../../../integrations/hooks.js';
 import { getPrerenderDefault } from '../../../prerender/utils.js';
 import type { AstroConfig } from '../../../types/public/config.js';
 import type { RouteData, RoutePart } from '../../../types/public/internal.js';
@@ -20,6 +19,7 @@ import { resolvePages } from '../../util.js';
 import { routeComparator } from '../priority.js';
 import { getRouteGenerator } from './generator.js';
 import { getPattern } from './pattern.js';
+import { getRoutePrerenderOption } from './prerender.js';
 const require = createRequire(import.meta.url);
 
 interface Item {
@@ -506,7 +506,16 @@ export async function createRouteManifest(
 	let promises = [];
 	for (const route of routes) {
 		promises.push(
-			limit(async () => await getRoutePrerenderOption(route, settings, params.fsMod, logger)),
+			limit(async () => {
+				if (route.type !== 'page' && route.type !== 'endpoint') return;
+				const localFs = params.fsMod ?? nodeFs;
+				const content = await localFs.promises.readFile(
+					fileURLToPath(new URL(route.component, settings.config.root)),
+					'utf-8',
+				);
+
+				await getRoutePrerenderOption(content, route, settings, logger);
+			}),
 		);
 	}
 	await Promise.all(promises);
@@ -714,35 +723,6 @@ export async function createRouteManifest(
 	};
 }
 
-async function getRoutePrerenderOption(
-	route: RouteData,
-	settings: AstroSettings,
-	fsMod: typeof nodeFs | undefined,
-	logger: Logger,
-) {
-	if (route.type !== 'page' && route.type !== 'endpoint') return;
-	const localFs = fsMod ?? nodeFs;
-	const content = await localFs.promises.readFile(
-		fileURLToPath(new URL(route.component, settings.config.root)),
-		'utf-8',
-	);
-
-	// Check if the route is pre-rendered or not
-	const match = /^\s*export\s+const\s+prerender\s*=\s*(true|false);?/m.exec(content);
-	if (match) {
-		route.prerender = match[1] === 'true';
-	}
-
-	await runHookRouteSetup({ route, settings, logger });
-
-	// If not explicitly set, default to the global setting
-	if (typeof route.prerender === undefined) {
-		route.prerender = getPrerenderDefault(settings.config);
-	}
-
-	if (!route.prerender) settings.buildOutput = 'server';
-}
-
 export function resolveInjectedRoute(entrypoint: string, root: URL, cwd?: string) {
 	let resolved;
 	try {
diff --git a/packages/astro/src/core/routing/manifest/prerender.ts b/packages/astro/src/core/routing/manifest/prerender.ts
new file mode 100644
index 000000000000..98321d18c608
--- /dev/null
+++ b/packages/astro/src/core/routing/manifest/prerender.ts
@@ -0,0 +1,29 @@
+import { runHookRouteSetup } from '../../../integrations/hooks.js';
+import { getPrerenderDefault } from '../../../prerender/utils.js';
+import type { AstroSettings } from '../../../types/astro.js';
+import type { RouteData } from '../../../types/public/internal.js';
+import type { Logger } from '../../logger/core.js';
+
+const PRERENDER_REGEX = /^\s*export\s+const\s+prerender\s*=\s*(true|false);?/m;
+
+export async function getRoutePrerenderOption(
+	content: string,
+	route: RouteData,
+	settings: AstroSettings,
+	logger: Logger,
+) {
+	// Check if the route is pre-rendered or not
+	const match = PRERENDER_REGEX.exec(content);
+	if (match) {
+		route.prerender = match[1] === 'true';
+	}
+
+	await runHookRouteSetup({ route, settings, logger });
+
+	// If not explicitly set, default to the global setting
+	if (typeof route.prerender === undefined) {
+		route.prerender = getPrerenderDefault(settings.config);
+	}
+
+	if (!route.prerender) settings.buildOutput = 'server';
+}
diff --git a/packages/astro/src/core/sync/index.ts b/packages/astro/src/core/sync/index.ts
index 436598dce477..f50bea9d062b 100644
--- a/packages/astro/src/core/sync/index.ts
+++ b/packages/astro/src/core/sync/index.ts
@@ -66,7 +66,7 @@ export default async function sync(
 		logger,
 	});
 	const manifest = await createRouteManifest({ settings, fsMod: fs }, logger);
-	await runHookConfigDone({ settings, logger });
+	await runHookConfigDone({ settings, logger, command: 'sync' });
 	return await syncInternal({ settings, logger, fs, force: inlineConfig.force, manifest });
 }
 
diff --git a/packages/astro/src/integrations/features-validation.ts b/packages/astro/src/integrations/features-validation.ts
index 0d4d081c4e90..77db47e0a2ed 100644
--- a/packages/astro/src/integrations/features-validation.ts
+++ b/packages/astro/src/integrations/features-validation.ts
@@ -157,3 +157,10 @@ function validateAssetsFeature(
 
 	return validateSupportKind(supportKind, adapterName, logger, 'assets', () => true);
 }
+
+export function getAdapterStaticRecommendation(adapterName: string): string | undefined {
+	return {
+		'@astrojs/vercel/static':
+			'Update your configuration to use `@astrojs/vercel/serverless` to unlock server-side rendering capabilities.',
+	}[adapterName];
+}
diff --git a/packages/astro/src/integrations/hooks.ts b/packages/astro/src/integrations/hooks.ts
index e8828fac9c8b..0c40e60cdb96 100644
--- a/packages/astro/src/integrations/hooks.ts
+++ b/packages/astro/src/integrations/hooks.ts
@@ -12,6 +12,7 @@ import type { SerializedSSRManifest } from '../core/app/types.js';
 import type { PageBuildData } from '../core/build/types.js';
 import { buildClientDirectiveEntrypoint } from '../core/client-directive/index.js';
 import { mergeConfig } from '../core/config/index.js';
+import { validateSetAdapter } from '../core/dev/adapter-validation.js';
 import type { AstroIntegrationLogger, Logger } from '../core/logger/core.js';
 import type { AstroSettings } from '../types/astro.js';
 import type { AstroConfig } from '../types/public/config.js';
@@ -296,9 +297,11 @@ export async function runHookConfigSetup({
 export async function runHookConfigDone({
 	settings,
 	logger,
+	command,
 }: {
 	settings: AstroSettings;
 	logger: Logger;
+	command?: 'dev' | 'build' | 'preview' | 'sync';
 }) {
 	for (const integration of settings.config.integrations) {
 		if (integration?.hooks?.['astro:config:done']) {
@@ -308,13 +311,9 @@ export async function runHookConfigDone({
 				hookResult: integration.hooks['astro:config:done']({
 					config: settings.config,
 					setAdapter(adapter) {
-						if (settings.adapter && settings.adapter.name !== adapter.name) {
-							throw new Error(
-								`Integration "${integration.name}" conflicts with "${settings.adapter.name}". You can only configure one deployment integration.`,
-							);
-						}
+						validateSetAdapter(logger, settings, adapter, integration.name, command);
 
-						if (adapter.adapterFeatures?.forceServerOutput) {
+						if (adapter.adapterFeatures?.buildOutput !== 'static') {
 							settings.buildOutput = 'server';
 						}
 
diff --git a/packages/astro/src/types/public/integrations.ts b/packages/astro/src/types/public/integrations.ts
index eaa84f27978a..0836bdc9e9bb 100644
--- a/packages/astro/src/types/public/integrations.ts
+++ b/packages/astro/src/types/public/integrations.ts
@@ -64,13 +64,13 @@ export type AdapterSupportsKind = 'unsupported' | 'stable' | 'experimental' | 'd
 
 export interface AstroAdapterFeatures {
 	/**
-	 * Creates an edge function that will communiate with the Astro middleware
+	 * Creates an edge function that will communicate with the Astro middleware
 	 */
 	edgeMiddleware: boolean;
 	/**
-	 * Force Astro to output a server output, even if all the pages are prerendered
+	 * Determine the type of build output the adapter is intended for. Defaults to `server`;
 	 */
-	forceServerOutput?: boolean;
+	buildOutput?: 'static' | 'server';
 }
 
 export interface AstroAdapter {
diff --git a/packages/astro/src/vite-plugin-astro-server/plugin.ts b/packages/astro/src/vite-plugin-astro-server/plugin.ts
index 20020559e8f5..ff67f487a650 100644
--- a/packages/astro/src/vite-plugin-astro-server/plugin.ts
+++ b/packages/astro/src/vite-plugin-astro-server/plugin.ts
@@ -3,6 +3,7 @@ import type fs from 'node:fs';
 import { IncomingMessage } from 'node:http';
 import type * as vite from 'vite';
 import type { SSRManifest, SSRManifestI18n } from '../core/app/types.js';
+import { warnMissingAdapter } from '../core/dev/adapter-validation.js';
 import { createKey } from '../core/encryption.js';
 import { getViteErrorPayload } from '../core/errors/dev/index.js';
 import { AstroError, AstroErrorData } from '../core/errors/index.js';
@@ -57,6 +58,7 @@ export default function createVitePluginAstroServer({
 						devSSRManifest,
 						await createRouteManifest({ settings, fsMod }, logger), // TODO: Handle partial updates to the manifest
 					);
+					warnMissingAdapter(logger, settings);
 					pipeline.setManifestData(routeManifest);
 				}
 			}
diff --git a/packages/astro/src/vite-plugin-astro-server/route.ts b/packages/astro/src/vite-plugin-astro-server/route.ts
index 5fb3c326594c..2bf5a31e491e 100644
--- a/packages/astro/src/vite-plugin-astro-server/route.ts
+++ b/packages/astro/src/vite-plugin-astro-server/route.ts
@@ -175,7 +175,7 @@ export async function handleRoute({
 		body,
 		logger,
 		clientAddress: incomingRequest.socket.remoteAddress,
-		staticLike: route.prerender,
+		isPrerendered: route.prerender,
 	});
 
 	// Set user specified headers to response object.
diff --git a/packages/astro/src/vite-plugin-scanner/index.ts b/packages/astro/src/vite-plugin-scanner/index.ts
index b53decd2d6f2..44d56270ad97 100644
--- a/packages/astro/src/vite-plugin-scanner/index.ts
+++ b/packages/astro/src/vite-plugin-scanner/index.ts
@@ -3,7 +3,9 @@ import { fileURLToPath } from 'node:url';
 import { bold } from 'kleur/colors';
 import type { Plugin as VitePlugin } from 'vite';
 import { normalizePath } from 'vite';
+import { warnMissingAdapter } from '../core/dev/adapter-validation.js';
 import type { Logger } from '../core/logger/core.js';
+import { getRoutePrerenderOption } from '../core/routing/manifest/prerender.js';
 import { isEndpoint, isPage } from '../core/util.js';
 import { rootRelativePath } from '../core/viteUtils.js';
 import type { AstroSettings, ManifestData } from '../types/astro.js';
@@ -80,5 +82,33 @@ export default function astroScannerPlugin({
 				},
 			};
 		},
+
+		// Handle hot updates to update the prerender option
+		async handleHotUpdate(ctx) {
+			const filename = normalizePath(ctx.file);
+			let fileURL: URL;
+			try {
+				fileURL = new URL(`file://${filename}`);
+			} catch {
+				// If we can't construct a valid URL, exit early
+				return;
+			}
+
+			const fileIsPage = isPage(fileURL, settings);
+			const fileIsEndpoint = isEndpoint(fileURL, settings);
+			if (!(fileIsPage || fileIsEndpoint)) return;
+
+			const route = manifest.routes.find((r) => {
+				const filePath = new URL(`./${r.component}`, settings.config.root);
+				return normalizePath(fileURLToPath(filePath)) === filename;
+			});
+
+			if (!route) {
+				return;
+			}
+
+			await getRoutePrerenderOption(await ctx.read(), route, settings, logger);
+			warnMissingAdapter(logger, settings);
+		},
 	};
 }
diff --git a/packages/astro/test/build-assets.test.js b/packages/astro/test/build-assets.test.js
index 75abfd2f02fa..63849e6118e0 100644
--- a/packages/astro/test/build-assets.test.js
+++ b/packages/astro/test/build-assets.test.js
@@ -99,7 +99,7 @@ describe('build assets (server)', () => {
 			fixture = await loadFixture({
 				root: './fixtures/build-assets/',
 				integrations: [preact()],
-				adapter: testAdapter({ extendAdapter: { adapterFeatures: { forceServerOutput: false } } }),
+				adapter: testAdapter({ extendAdapter: { adapterFeatures: { buildOutput: 'static' } } }),
 				// test suite was authored when inlineStylesheets defaulted to never
 				build: { inlineStylesheets: 'never' },
 			});
@@ -151,7 +151,7 @@ describe('build assets (server)', () => {
 				adapter: testAdapter({
 					extendAdapter: {
 						adapterFeatures: {
-							forceServerOutput: false,
+							buildOutput: 'static',
 						},
 					},
 				}),
diff --git a/packages/astro/test/static-build.test.js b/packages/astro/test/static-build.test.js
index c16563ac83f7..544b5b31503b 100644
--- a/packages/astro/test/static-build.test.js
+++ b/packages/astro/test/static-build.test.js
@@ -186,7 +186,7 @@ describe('Static build', () => {
 	it('warns when accessing headers', async () => {
 		let found = false;
 		for (const log of logs) {
-			if (/`Astro\.request\.headers` is unavailable in "static" output mode/.test(log.message)) {
+			if (/`Astro\.request\.headers` is not available on prerendered pages./.test(log.message)) {
 				found = true;
 			}
 		}
diff --git a/packages/astro/test/test-adapter.js b/packages/astro/test/test-adapter.js
index fc39237199d9..b8655a9d6458 100644
--- a/packages/astro/test/test-adapter.js
+++ b/packages/astro/test/test-adapter.js
@@ -114,7 +114,7 @@ export default function ({
 						i18nDomains: 'stable',
 					},
 					adapterFeatures: {
-						forceServerOutput: true,
+						buildOutput: 'server',
 					},
 					...extendAdapter,
 				});