Drop support for Svelte 4

CONTRIBUTING.md

@@ -20,7 +20,6 @@ inertia/
 │       └── test-app/  Vue 3 test application
 ├── playgrounds/       Full Laravel applications for manual testing
 │   ├── react/         Laravel + React
-│   ├── svelte4/       Laravel + Svelte 4
 │   ├── svelte5/       Laravel + Svelte 5
 │   └── vue3/          Laravel + Vue 3
 └── tests/             End-to-end tests and test server
@@ -235,7 +234,6 @@ Each playground has its own pnpm script:
 
 ```sh
 pnpm playground:react
-pnpm playground:svelte4
 pnpm playground:svelte5
 pnpm playground:vue
 ```

package.json

@@ -26,7 +26,6 @@
     "test:svelte": "PACKAGE=svelte node playwright.js",
     "test:vue": "PACKAGE=vue3 node playwright.js",
     "playground:react": "cd playgrounds/react && ./init.sh && composer run dev",
-    "playground:svelte4": "cd playgrounds/svelte4 && ./init.sh && composer run dev",
     "playground:svelte5": "cd playgrounds/svelte5 && ./init.sh && composer run dev",
     "playground:vue": "cd playgrounds/vue3 && ./init.sh && composer run dev",
     "format": "prettier --write ."

packages/svelte/package.json

@@ -45,8 +45,8 @@
   },
   "devDependencies": {
     "@sveltejs/adapter-auto": "^3.3.1",
-    "@sveltejs/kit": "^2.48.5",
-    "@sveltejs/package": "^2.5.4",
+    "@sveltejs/kit": "^2.49.0",
+    "@sveltejs/package": "^2.5.6",
     "@sveltejs/vite-plugin-svelte": "^3.1.2",
     "axios": "^1.13.2",
     "es-check": "^9.4.5",
@@ -58,7 +58,7 @@
     "vite": "^5.4.21"
   },
   "peerDependencies": {
-    "svelte": "^4.0.0 || ^5.0.0"
+    "svelte": "^5.0.0"
   },
   "dependencies": {
     "@inertiajs/core": "workspace:*",