diff --git a/packages/astro/src/@types/astro.ts b/packages/astro/src/@types/astro.ts
index 2b85b9f453cb..954bb4fa0cfb 100644
--- a/packages/astro/src/@types/astro.ts
+++ b/packages/astro/src/@types/astro.ts
@@ -1166,66 +1166,6 @@ export interface AstroUserConfig {
 		 */
 		assets?: boolean;
 
-		/**
-		 * @docs
-		 * @name experimental.inlineStylesheets
-		 * @type {('always' | 'auto' | 'never')}
-		 * @default `never`
-		 * @version 2.4.0
-		 * @description
-		 * Control whether styles are sent to the browser in a separate css file or inlined into `<style>` tags. Choose from the following options:
-		 *  - `'always'` - all styles are inlined into `<style>` tags
-		 *  - `'auto'` - only stylesheets smaller than `ViteConfig.build.assetsInlineLimit` (default: 4kb) are inlined. Otherwise, styles are sent in external stylesheets.
-		 *  - `'never'` - all styles are sent in external stylesheets
-		 *
-		 * ```js
-		 * {
-		 * 	experimental: {
-		 *		inlineStylesheets: `auto`,
-		 * 	},
-		 * }
-		 * ```
-		 */
-		inlineStylesheets?: 'always' | 'auto' | 'never';
-
-		/**
-		 * @docs
-		 * @name experimental.customClientDirectives
-		 * @type {boolean}
-		 * @default `false`
-		 * @version 2.5.0
-		 * @description
-		 * Enable experimental support for hybrid SSR with pre-rendering enabled by default.
-		 *
-		 * To enable this feature, first set `experimental.hybridOutput` to `true` in your Astro config, and set `output` to `hybrid`.
-		 *
-		 * ```js
-		 * {
-		 *  output: 'hybrid',
-		 * 	experimental: {
-		 *		hybridOutput: true,
-		 * 	},
-		 * }
-		 * ```
-		 * Then add `export const prerender =  false` to any page or endpoint you want to opt-out of pre-rendering.
-		 * ```astro
-		 * ---
-		 * // pages/contact.astro
-		 * export const prerender = false
-		 *
-		 * if (Astro.request.method === 'POST') {
-		 *  // handle form submission
-		 * }
-		 * ---
-		 * <form method="POST">
-		 * 	<input type="text" name="name" />
-		 * 	<input type="email" name="email" />
-		 * 	<button type="submit">Submit</button>
-		 * </form>
-		 * ```
-		 */
-		hybridOutput?: boolean;
-
 		/**
 		 * @docs
 		 * @name experimental.redirects
diff --git a/packages/astro/src/core/config/schema.ts b/packages/astro/src/core/config/schema.ts
index 1df50b423ef4..5f070ac6e433 100644
--- a/packages/astro/src/core/config/schema.ts
+++ b/packages/astro/src/core/config/schema.ts
@@ -42,11 +42,7 @@ const ASTRO_CONFIG_DEFAULTS: AstroUserConfig & any = {
 	redirects: {},
 	experimental: {
 		assets: false,
-		hybridOutput: false,
-		redirects: false,
-		customClientDirectives: false,
-		inlineStylesheets: 'never',
-		middleware: false,
+		redirects: false
 	},
 };
 
@@ -209,17 +205,7 @@ export const AstroConfigSchema = z.object({
 	experimental: z
 		.object({
 			assets: z.boolean().optional().default(ASTRO_CONFIG_DEFAULTS.experimental.assets),
-			hybridOutput: z.boolean().optional().default(ASTRO_CONFIG_DEFAULTS.experimental.hybridOutput),
-			redirects: z.boolean().optional().default(ASTRO_CONFIG_DEFAULTS.experimental.redirects),
-			customClientDirectives: z
-				.boolean()
-				.optional()
-				.default(ASTRO_CONFIG_DEFAULTS.experimental.customClientDirecives),
-			inlineStylesheets: z
-				.enum(['always', 'auto', 'never'])
-				.optional()
-				.default(ASTRO_CONFIG_DEFAULTS.experimental.inlineStylesheets),
-			middleware: z.oboolean().optional().default(ASTRO_CONFIG_DEFAULTS.experimental.middleware),
+			redirects: z.boolean().optional().default(ASTRO_CONFIG_DEFAULTS.experimental.redirects)
 		})
 		.passthrough()
 		.refine(