diff --git a/.prettierrc b/.prettierrc
index 0fd4cd0a2cc1..d471ce49e239 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -27,8 +27,8 @@
 				"**/build/**",
 				"**/test-results/**",
 				"documentation/**/*.md",
-				"packages/package/test/fixtures/**/expected/**/*",
-				"packages/package/test/watch/expected/**/*",
+				"packages/package/test/fixtures/**/expected*/**/*",
+				"packages/package/test/watch/expected*/**/*",
 				"packages/package/test/watch/package/**/*",
 				"packages/kit/src/core/postbuild/fixtures/**/*"
 			],
diff --git a/packages/package/package.json b/packages/package/package.json
index 1ab629b29654..368ba1dba622 100644
--- a/packages/package/package.json
+++ b/packages/package/package.json
@@ -31,6 +31,7 @@
 		"@types/node": "^18.19.48",
 		"@types/semver": "^7.5.6",
 		"prettier": "^3.1.1",
+		"semver": "^7.6.3",
 		"svelte": "^5.2.9",
 		"svelte-preprocess": "^6.0.0",
 		"typescript": "^5.3.3",
diff --git a/packages/package/test/fixtures/javascript/expected ^4/Test.svelte b/packages/package/test/fixtures/javascript/expected ^4/Test.svelte
new file mode 100644
index 000000000000..e60789af6a74
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/Test.svelte	
@@ -0,0 +1,12 @@
+<script>
+	import { createEventDispatcher } from 'svelte';
+	/**
+	 * @type {string}
+	 */
+	export const astring = 'potato';
+
+	const dispatch = createEventDispatcher();
+	dispatch('event', true);
+</script>
+
+<slot {astring} />
diff --git a/packages/package/test/fixtures/javascript/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/javascript/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..8b3f3a1b705c
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,42 @@
+/** @typedef {typeof __propDef.props}  TestProps */
+/** @typedef {typeof __propDef.events}  TestEvents */
+/** @typedef {typeof __propDef.slots}  TestSlots */
+export default class Test extends SvelteComponent<
+	{
+		astring?: string;
+	},
+	{
+		event: CustomEvent<any>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	},
+	{
+		default: {
+			astring: string;
+		};
+	}
+> {
+	get astring(): string;
+}
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		astring?: string;
+	};
+	events: {
+		event: CustomEvent<any>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {
+		default: {
+			astring: string;
+		};
+	};
+	exports?: {};
+	bindings?: string;
+};
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte b/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte
new file mode 100644
index 000000000000..852fe8cd5dbc
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte	
@@ -0,0 +1,6 @@
+<script>
+	/**
+	 * @type {import('./foo').Foo}
+	 */
+	export let foo;
+</script>
diff --git a/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte.d.ts b/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte.d.ts
new file mode 100644
index 000000000000..a3a776a2d5bb
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/Test2.svelte.d.ts	
@@ -0,0 +1,28 @@
+/** @typedef {typeof __propDef.props}  Test2Props */
+/** @typedef {typeof __propDef.events}  Test2Events */
+/** @typedef {typeof __propDef.slots}  Test2Slots */
+export default class Test2 extends SvelteComponent<
+	{
+		foo: import('./foo').Foo;
+	},
+	{
+		[evt: string]: CustomEvent<any>;
+	},
+	{}
+> {}
+export type Test2Props = typeof __propDef.props;
+export type Test2Events = typeof __propDef.events;
+export type Test2Slots = typeof __propDef.slots;
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		foo: import('./foo').Foo;
+	};
+	events: {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {};
+	exports?: {};
+	bindings?: string;
+};
+export {};
diff --git a/packages/package/test/fixtures/javascript/expected ^4/foo.d.ts b/packages/package/test/fixtures/javascript/expected ^4/foo.d.ts
new file mode 100644
index 000000000000..c941ad7b1ce6
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/foo.d.ts	
@@ -0,0 +1 @@
+export type Foo = boolean;
diff --git a/packages/package/test/fixtures/javascript/expected ^4/index.d.ts b/packages/package/test/fixtures/javascript/expected ^4/index.d.ts
new file mode 100644
index 000000000000..ed60fe04da25
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/index.d.ts	
@@ -0,0 +1,2 @@
+export { default as Test } from './Test.svelte';
+export { default as Internal } from './internal/Test.svelte';
diff --git a/packages/package/test/fixtures/javascript/expected ^4/index.js b/packages/package/test/fixtures/javascript/expected ^4/index.js
new file mode 100644
index 000000000000..ed60fe04da25
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/index.js	
@@ -0,0 +1,2 @@
+export { default as Test } from './Test.svelte';
+export { default as Internal } from './internal/Test.svelte';
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte b/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte
new file mode 100644
index 000000000000..852fe8cd5dbc
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte	
@@ -0,0 +1,6 @@
+<script>
+	/**
+	 * @type {import('./foo').Foo}
+	 */
+	export let foo;
+</script>
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte.d.ts b/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte.d.ts
new file mode 100644
index 000000000000..26d2d35798d0
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/Test.svelte.d.ts	
@@ -0,0 +1,28 @@
+/** @typedef {typeof __propDef.props}  TestProps */
+/** @typedef {typeof __propDef.events}  TestEvents */
+/** @typedef {typeof __propDef.slots}  TestSlots */
+export default class Test extends SvelteComponent<
+	{
+		foo: import('./foo').Foo;
+	},
+	{
+		[evt: string]: CustomEvent<any>;
+	},
+	{}
+> {}
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		foo: import('./foo').Foo;
+	};
+	events: {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {};
+	exports?: {};
+	bindings?: string;
+};
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/foo.d.ts b/packages/package/test/fixtures/javascript/expected ^4/internal/foo.d.ts
new file mode 100644
index 000000000000..c941ad7b1ce6
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/foo.d.ts	
@@ -0,0 +1 @@
+export type Foo = boolean;
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/index.d.ts b/packages/package/test/fixtures/javascript/expected ^4/internal/index.d.ts
new file mode 100644
index 000000000000..69325fd26bd1
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/index.d.ts	
@@ -0,0 +1,2 @@
+export const foo: 'bar';
+export { x } from "./runes.svelte.js";
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/index.js b/packages/package/test/fixtures/javascript/expected ^4/internal/index.js
new file mode 100644
index 000000000000..b7dfdd870f1b
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/index.js	
@@ -0,0 +1,2 @@
+export const foo = 'bar';
+export { x } from './runes.svelte.js';
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.d.ts b/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.d.ts
new file mode 100644
index 000000000000..ce5b9032906e
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.d.ts	
@@ -0,0 +1 @@
+export const x: true;
diff --git a/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.js b/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.js
new file mode 100644
index 000000000000..30dc55a73230
--- /dev/null
+++ b/packages/package/test/fixtures/javascript/expected ^4/internal/runes.svelte.js	
@@ -0,0 +1 @@
+export const x = true;
diff --git a/packages/package/test/fixtures/javascript/expected ^4/utils.d.ts b/packages/package/test/fixtures/javascript/expected ^4/utils.d.ts
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/packages/package/test/fixtures/javascript/expected ^4/utils.js b/packages/package/test/fixtures/javascript/expected ^4/utils.js
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte b/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte
new file mode 100644
index 000000000000..fcf1788036de
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte	
@@ -0,0 +1,6 @@
+<script>
+  import { foo } from './sub/foo';
+  import { util } from './utils';
+  export let bar = foo;
+  util();
+</script>
\ No newline at end of file
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..118eac96760a
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,17 @@
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		bar?: import('./sub/foo').Foo;
+	};
+	events: {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {};
+	exports?: {};
+	bindings?: string;
+};
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+export default class Test extends SvelteComponent<TestProps, TestEvents, TestSlots> {}
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/baz.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/baz.d.ts
new file mode 100644
index 000000000000..85f482c14ba7
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/baz.d.ts	
@@ -0,0 +1,4 @@
+export interface Baz {
+	baz: string;
+}
+export declare const baz: Baz;
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/baz.js b/packages/package/test/fixtures/resolve-alias/expected ^4/baz.js
new file mode 100644
index 000000000000..844535e7bc66
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/baz.js	
@@ -0,0 +1 @@
+export const baz = { baz: 'baz' };
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/index.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/index.d.ts
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/index.d.ts	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/index.js b/packages/package/test/fixtures/resolve-alias/expected ^4/index.js
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/index.js	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.d.ts
new file mode 100644
index 000000000000..9f1a49e9dfd6
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.d.ts	
@@ -0,0 +1,2 @@
+export declare const bar1: import('./foo').Foo;
+export declare const bar2: import('../baz').Baz;
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.js b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.js
new file mode 100644
index 000000000000..17941b746387
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/bar.js	
@@ -0,0 +1,4 @@
+import { baz } from '../baz';
+import { foo } from './foo';
+export const bar1 = foo;
+export const bar2 = baz;
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.d.ts
new file mode 100644
index 000000000000..b5b3928ab61d
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.d.ts	
@@ -0,0 +1,4 @@
+export interface Foo {
+	foo: string;
+}
+export declare const foo: Foo;
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.js b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.js
new file mode 100644
index 000000000000..aaae90ec5bfc
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/sub/foo.js	
@@ -0,0 +1 @@
+export const foo = { foo: 'foo' };
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.d.ts b/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.d.ts
new file mode 100644
index 000000000000..5f6cf235961a
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.d.ts	
@@ -0,0 +1 @@
+export declare const util: () => void;
diff --git a/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.js b/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.js
new file mode 100644
index 000000000000..bf331fdbac9d
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected ^4/utils/index.js	
@@ -0,0 +1 @@
+export const util = () => { };
diff --git a/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte b/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte
new file mode 100644
index 000000000000..a02c0339976a
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte	
@@ -0,0 +1,8 @@
+<script>
+import { createEventDispatcher } from 'svelte';
+export const astring = 'potato';
+const dispatch = createEventDispatcher();
+dispatch('event', true);
+</script>
+
+<slot {astring} />
\ No newline at end of file
diff --git a/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..1d2d93df5582
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-3-types/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,23 @@
+import { SvelteComponentTyped } from 'svelte';
+declare const __propDef: {
+	props: {
+		astring?: string;
+	};
+	events: {
+		event: CustomEvent<boolean>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {
+		default: {
+			astring: string;
+		};
+	};
+};
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+export default class Test extends SvelteComponentTyped<TestProps, TestEvents, TestSlots> {
+	get astring(): string;
+}
+export {};
diff --git a/packages/package/test/fixtures/svelte-3-types/expected ^4/index.d.ts b/packages/package/test/fixtures/svelte-3-types/expected ^4/index.d.ts
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-3-types/expected ^4/index.d.ts	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/svelte-3-types/expected ^4/index.js b/packages/package/test/fixtures/svelte-3-types/expected ^4/index.js
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-3-types/expected ^4/index.js	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte b/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte
new file mode 100644
index 000000000000..e60789af6a74
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte	
@@ -0,0 +1,12 @@
+<script>
+	import { createEventDispatcher } from 'svelte';
+	/**
+	 * @type {string}
+	 */
+	export const astring = 'potato';
+
+	const dispatch = createEventDispatcher();
+	dispatch('event', true);
+</script>
+
+<slot {astring} />
diff --git a/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..8b3f3a1b705c
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-kit/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,42 @@
+/** @typedef {typeof __propDef.props}  TestProps */
+/** @typedef {typeof __propDef.events}  TestEvents */
+/** @typedef {typeof __propDef.slots}  TestSlots */
+export default class Test extends SvelteComponent<
+	{
+		astring?: string;
+	},
+	{
+		event: CustomEvent<any>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	},
+	{
+		default: {
+			astring: string;
+		};
+	}
+> {
+	get astring(): string;
+}
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		astring?: string;
+	};
+	events: {
+		event: CustomEvent<any>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {
+		default: {
+			astring: string;
+		};
+	};
+	exports?: {};
+	bindings?: string;
+};
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/svelte-kit/expected ^4/foo.d.ts b/packages/package/test/fixtures/svelte-kit/expected ^4/foo.d.ts
new file mode 100644
index 000000000000..c941ad7b1ce6
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-kit/expected ^4/foo.d.ts	
@@ -0,0 +1 @@
+export type Foo = boolean;
diff --git a/packages/package/test/fixtures/svelte-kit/expected ^4/index.d.ts b/packages/package/test/fixtures/svelte-kit/expected ^4/index.d.ts
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-kit/expected ^4/index.d.ts	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/svelte-kit/expected ^4/index.js b/packages/package/test/fixtures/svelte-kit/expected ^4/index.js
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/svelte-kit/expected ^4/index.js	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte b/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte
new file mode 100644
index 000000000000..f46e78994ae5
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte	
@@ -0,0 +1,17 @@
+<script>
+	/** @type {import('./foo').Foo} */
+	export let foo;
+</script>
+
+<svelte:head>
+  <script type="application/ld+json">
+		{
+			"@context": "http://schema.org",
+			"@type": "Corporation",
+			"name": "Svelte Corp",
+			"description": "Svelte will cybernetically enhance you",
+			"naics": "523910",
+			"url": "https://svelte.dev"
+		}
+	</script>
+</svelte:head>
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte.d.ts
new file mode 100644
index 000000000000..bce6209444f5
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Plain.svelte.d.ts	
@@ -0,0 +1,28 @@
+/** @typedef {typeof __propDef.props}  PlainProps */
+/** @typedef {typeof __propDef.events}  PlainEvents */
+/** @typedef {typeof __propDef.slots}  PlainSlots */
+export default class Plain extends SvelteComponent<
+	{
+		foo: import('./foo').Foo;
+	},
+	{
+		[evt: string]: CustomEvent<any>;
+	},
+	{}
+> {}
+export type PlainProps = typeof __propDef.props;
+export type PlainEvents = typeof __propDef.events;
+export type PlainSlots = typeof __propDef.slots;
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		foo: import('./foo').Foo;
+	};
+	events: {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {};
+	exports?: {};
+	bindings?: string;
+};
+export {};
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte
new file mode 100644
index 000000000000..661b1b8276b0
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte	
@@ -0,0 +1,8 @@
+<script>
+import { createEventDispatcher } from 'svelte';
+export const astring = 'potato';
+const dispatch = createEventDispatcher();
+dispatch('event', true);
+</script>
+
+<slot {astring} />
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..773ce92a30b9
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,25 @@
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		astring?: string;
+	};
+	events: {
+		event: CustomEvent<boolean>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {
+		default: {
+			astring: string;
+		};
+	};
+	exports?: {};
+	bindings?: string;
+};
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+export default class Test extends SvelteComponent<TestProps, TestEvents, TestSlots> {
+	get astring(): string;
+}
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte
new file mode 100644
index 000000000000..8754c5335039
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte	
@@ -0,0 +1,3 @@
+<script>
+	export let foo;
+</script>
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte.d.ts
new file mode 100644
index 000000000000..ef0d6a643bc5
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/Test2.svelte.d.ts	
@@ -0,0 +1,18 @@
+import { SvelteComponent } from 'svelte';
+import type { Foo } from './foo';
+declare const __propDef: {
+	props: {
+		foo: Foo;
+	};
+	events: {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {};
+	exports?: {};
+	bindings?: string;
+};
+export type Test2Props = typeof __propDef.props;
+export type Test2Events = typeof __propDef.events;
+export type Test2Slots = typeof __propDef.slots;
+export default class Test2 extends SvelteComponent<Test2Props, Test2Events, Test2Slots> {}
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/foo.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/foo.d.ts
new file mode 100644
index 000000000000..c941ad7b1ce6
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/foo.d.ts	
@@ -0,0 +1 @@
+export type Foo = boolean;
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/index.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/index.d.ts
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/index.d.ts	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/index.js b/packages/package/test/fixtures/typescript-esnext/expected ^4/index.js
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/index.js	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.d.ts
new file mode 100644
index 000000000000..2b17805f4351
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.d.ts	
@@ -0,0 +1 @@
+export declare const x = true;
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.js b/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.js
new file mode 100644
index 000000000000..30dc55a73230
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-esnext/expected ^4/runes.svelte.js	
@@ -0,0 +1 @@
+export const x = true;
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/utils.d.ts b/packages/package/test/fixtures/typescript-esnext/expected ^4/utils.d.ts
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/packages/package/test/fixtures/typescript-esnext/expected ^4/utils.js b/packages/package/test/fixtures/typescript-esnext/expected ^4/utils.js
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte b/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte
new file mode 100644
index 000000000000..661b1b8276b0
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte	
@@ -0,0 +1,8 @@
+<script>
+import { createEventDispatcher } from 'svelte';
+export const astring = 'potato';
+const dispatch = createEventDispatcher();
+dispatch('event', true);
+</script>
+
+<slot {astring} />
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte.d.ts b/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..773ce92a30b9
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,25 @@
+import { SvelteComponent } from 'svelte';
+declare const __propDef: {
+	props: {
+		astring?: string;
+	};
+	events: {
+		event: CustomEvent<boolean>;
+	} & {
+		[evt: string]: CustomEvent<any>;
+	};
+	slots: {
+		default: {
+			astring: string;
+		};
+	};
+	exports?: {};
+	bindings?: string;
+};
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+export default class Test extends SvelteComponent<TestProps, TestEvents, TestSlots> {
+	get astring(): string;
+}
+export {};
\ No newline at end of file
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.d.ts b/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.d.ts
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.d.ts	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.js b/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.js
new file mode 100644
index 000000000000..4c44188c3648
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/index.js	
@@ -0,0 +1 @@
+export { default as Test } from './Test.svelte';
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.d.ts b/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.d.ts
new file mode 100644
index 000000000000..2b17805f4351
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.d.ts	
@@ -0,0 +1 @@
+export declare const x = true;
diff --git a/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.js b/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.js
new file mode 100644
index 000000000000..30dc55a73230
--- /dev/null
+++ b/packages/package/test/fixtures/typescript-nodenext/expected ^4/runes.svelte.js	
@@ -0,0 +1 @@
+export const x = true;
diff --git a/packages/package/test/index.js b/packages/package/test/index.js
index 45903ecb0b23..1fd1af09f929 100644
--- a/packages/package/test/index.js
+++ b/packages/package/test/index.js
@@ -4,6 +4,8 @@ import { join, resolve } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 import prettier from 'prettier';
+import * as semver from 'semver';
+import * as svelte from 'svelte/compiler';
 import { test } from 'uvu';
 import * as assert from 'uvu/assert';
 
@@ -21,7 +23,7 @@ const __dirname = join(__filename, '..');
  */
 async function test_make_package(path, options) {
 	const cwd = join(__dirname, 'fixtures', path);
-	const ewd = join(cwd, 'expected');
+	const ewd = join(cwd, get_expected_dir(cwd));
 	const output = join(cwd, 'dist');
 
 	const config = await load_config({ cwd });
@@ -80,6 +82,25 @@ async function format(file, content) {
 	});
 }
 
+/**
+ * adapted from https://github.com/Rich-Harris/dts-buddy/blob/94d4ff35f48a487c081a3a48ceb3d9124712b84e/test/test.js#L52-L61
+ * @param {string} cwd
+ * @returns {string}
+ */
+function get_expected_dir(cwd) {
+	let expected_dir = 'expected';
+	for (const candidate of fs.readdirSync(cwd)) {
+		if (!candidate.startsWith('expected ')) continue;
+		const range = candidate.slice(8);
+
+		if (semver.satisfies(svelte.VERSION.split('-')[0], range)) {
+			expected_dir = candidate;
+			break;
+		}
+	}
+	return expected_dir;
+}
+
 for (const dir of fs.readdirSync(join(__dirname, 'errors'))) {
 	test(`package error [${dir}]`, async () => {
 		const cwd = join(__dirname, 'errors', dir);
@@ -173,7 +194,7 @@ if (!process.env.CI) {
 
 		/** @param {string} file */
 		function compare(file) {
-			assert.equal(read(`package/${file}`), read(`expected/${file}`));
+			assert.equal(read(`package/${file}`), read(`${get_expected_dir(cwd)}/${file}`));
 		}
 
 		/** @param {string} file */
diff --git a/packages/package/test/watch/expected ^4/Test.svelte b/packages/package/test/watch/expected ^4/Test.svelte
new file mode 100644
index 000000000000..8f19b8ec1674
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/Test.svelte	
@@ -0,0 +1 @@
+<script lang="ts">export let answer: number</script>
\ No newline at end of file
diff --git a/packages/package/test/watch/expected ^4/Test.svelte.d.ts b/packages/package/test/watch/expected ^4/Test.svelte.d.ts
new file mode 100644
index 000000000000..fecde1b0e9cb
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/Test.svelte.d.ts	
@@ -0,0 +1,18 @@
+import { SvelteComponent } from "svelte";
+declare const __propDef: {
+    props: {
+        answer: number;
+    };
+    events: {
+        [evt: string]: CustomEvent<any>;
+    };
+    slots: {};
+    exports?: {};
+    bindings?: string;
+};
+export type TestProps = typeof __propDef.props;
+export type TestEvents = typeof __propDef.events;
+export type TestSlots = typeof __propDef.slots;
+export default class Test extends SvelteComponent<TestProps, TestEvents, TestSlots> {
+}
+export {};
diff --git a/packages/package/test/watch/expected ^4/a.d.ts b/packages/package/test/watch/expected ^4/a.d.ts
new file mode 100644
index 000000000000..8ae31dde3a46
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/a.d.ts	
@@ -0,0 +1 @@
+export const a: "a";
diff --git a/packages/package/test/watch/expected ^4/a.js b/packages/package/test/watch/expected ^4/a.js
new file mode 100644
index 000000000000..737869aa3ae5
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/a.js	
@@ -0,0 +1 @@
+export const a = 'a';
\ No newline at end of file
diff --git a/packages/package/test/watch/expected ^4/b.d.ts b/packages/package/test/watch/expected ^4/b.d.ts
new file mode 100644
index 000000000000..17fcba0d170e
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/b.d.ts	
@@ -0,0 +1 @@
+export declare const b = "b";
diff --git a/packages/package/test/watch/expected ^4/b.js b/packages/package/test/watch/expected ^4/b.js
new file mode 100644
index 000000000000..137b8ce6429a
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/b.js	
@@ -0,0 +1 @@
+export const b = 'b';
diff --git a/packages/package/test/watch/expected ^4/index.js b/packages/package/test/watch/expected ^4/index.js
new file mode 100644
index 000000000000..ec0ffd5d4721
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/index.js	
@@ -0,0 +1 @@
+console.log('index.js');
diff --git a/packages/package/test/watch/expected ^4/package.json b/packages/package/test/watch/expected ^4/package.json
new file mode 100644
index 000000000000..dd85b1921837
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/package.json	
@@ -0,0 +1,9 @@
+{
+  "type": "module",
+  "exports": {
+    "./package.json": "./package.json",
+    "./Test.svelte": "./Test.svelte",
+    ".": "./index.js"
+  },
+  "svelte": "./index.js"
+}
\ No newline at end of file
diff --git a/packages/package/test/watch/expected ^4/post-error.svelte b/packages/package/test/watch/expected ^4/post-error.svelte
new file mode 100644
index 000000000000..c2f280254f99
--- /dev/null
+++ b/packages/package/test/watch/expected ^4/post-error.svelte	
@@ -0,0 +1 @@
+<button on:click={foo}>click me</button>
\ No newline at end of file