[11.x] Fixes incorrectly serializing virtual properties (backport)

CHANGELOG.md

@@ -1,6 +1,16 @@
 # Release Notes for 11.x
 
-## [Unreleased](https://github.com/laravel/framework/compare/v11.45.2...11.x)
+## [Unreleased](https://github.com/laravel/framework/compare/v11.46.0...11.x)
+
+## [v11.46.0](https://github.com/laravel/framework/compare/v11.45.3...v11.46.0) - 2025-09-08
+
+## [v11.45.3](https://github.com/laravel/framework/compare/v11.45.2...v11.45.3) - 2025-09-02
+
+* [11.x] Test Improvements by [@crynobone](https://github.com/crynobone) in https://github.com/laravel/framework/pull/56649
+* [11.x] Fix exception page not preparing SQL bindings by [@crynobone](https://github.com/crynobone) in https://github.com/laravel/framework/pull/56651
+* [11.x] Test Improvements by [@crynobone](https://github.com/crynobone) in https://github.com/laravel/framework/pull/56849
+* [11.x] Chore: Decouple Str::random() from Validator by [@michaeldyrynda](https://github.com/michaeldyrynda) in https://github.com/laravel/framework/pull/56852
+* [11.x] Allow a wider range of `brick/math` versions by [@GrahamCampbell](https://github.com/GrahamCampbell) in https://github.com/laravel/framework/pull/56890
 
 ## [v11.45.2](https://github.com/laravel/framework/compare/v11.45.1...v11.45.2) - 2025-08-13
 

src/Illuminate/Database/Eloquent/Model.php

@@ -2421,7 +2421,15 @@ public function __sleep()
         $this->classCastCache = [];
         $this->attributeCastCache = [];
 
-        return array_keys(get_object_vars($this));
+        // When serializing the model, we may accidentally catch up some virtual properties.
+        // We will cast the model to a native array to skip them and then apply a function
+        // to clean each of the property names which is miles faster than using a regex.
+        return array_map(
+            fn ($key) => $key[0] === "\0"
+                ? substr($key, strpos($key, "\0", 1) + 1)
+                : $key,
+            array_keys((array) $this)
+        );
     }
 
     /**

src/Illuminate/Foundation/Application.php

@@ -45,7 +45,7 @@ class Application extends Container implements ApplicationContract, CachesConfig
      *
      * @var string
      */
-    const VERSION = '11.45.3';
+    const VERSION = '11.46.0';
 
     /**
      * The base path for the Laravel installation.