diff --git a/CHANGELOG.md b/CHANGELOG.md
index 57e5a51fc27d..22db3cf52743 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,30 @@
 # Release Notes for 10.x
 
-## [Unreleased](https://github.com/laravel/framework/compare/v10.37.3...10.x)
+## [Unreleased](https://github.com/laravel/framework/compare/v10.38.0...10.x)
+
+## [v10.38.0](https://github.com/laravel/framework/compare/v10.37.3...v10.38.0) - 2023-12-19
+
+* [10.x] Add routeRoute method to test request by [@fragkp](https://github.com/fragkp) in https://github.com/laravel/framework/pull/49366
+* [10.x] Update import & typo by [@chu121su12](https://github.com/chu121su12) in https://github.com/laravel/framework/pull/49370
+* [10.x] Show default `false` values in `db:table` command by [@PerryvanderMeer](https://github.com/PerryvanderMeer) in https://github.com/laravel/framework/pull/49379
+* [10.x] Fix primary key creation for MySQL with `sql_require_primary_key` enabled by [@mtawil](https://github.com/mtawil) in https://github.com/laravel/framework/pull/49374
+* [10.x] Add `charset` and `collation` method to `Blueprint` by [@gcazin](https://github.com/gcazin) in https://github.com/laravel/framework/pull/49396
+* Fixes second run of `about` command on Octane by [@josecl](https://github.com/josecl) in https://github.com/laravel/framework/pull/49387
+* [10.x] Fix bug in ArrayLock getCurrentOwner by [@Joostb](https://github.com/Joostb) in https://github.com/laravel/framework/pull/49393
+* [10.x] Dynamo Batch Repository - Match Default Horizon Sort by [@evan-burrell](https://github.com/evan-burrell) in https://github.com/laravel/framework/pull/49391
+* [10.x] Add Blade `[@session](https://github.com/session)` Directive by [@jrd-lewis](https://github.com/jrd-lewis) in https://github.com/laravel/framework/pull/49339
+* [10.x] Improve `Arr::dot` performance by [@bastien-phi](https://github.com/bastien-phi) in https://github.com/laravel/framework/pull/49386
+* [10.x] Fix assertStatus() parameter order by [@marcovo](https://github.com/marcovo) in https://github.com/laravel/framework/pull/49404
+* [10.x] Only set `defaultCasters` if not previously set by [@inxilpro](https://github.com/inxilpro) in https://github.com/laravel/framework/pull/49402
+* [10.x] Fixes parameter type in `ManagesFrequencies` by [@Lucas-Schmukas](https://github.com/Lucas-Schmukas) in https://github.com/laravel/framework/pull/49399
+* [10.x] Add SQLite support for `whereJsonContains` method by [@danieleambrosino](https://github.com/danieleambrosino) in https://github.com/laravel/framework/pull/49401
+* [10x.] Use native json_validate in Validation by [@gtjamesa](https://github.com/gtjamesa) in https://github.com/laravel/framework/pull/49413
+* [10.x] Introducing `isEmpty` and `isNotEmpty` to `ComponentAttributeBag` by [@devajmeireles](https://github.com/devajmeireles) in https://github.com/laravel/framework/pull/49408
+* [10.x] Drop the primary key if it exists when adding a new primary key by [@KieranFYI](https://github.com/KieranFYI) in https://github.com/laravel/framework/pull/49392
+* [10.x] Improve schema builder `getColumns()` method by [@hafezdivandari](https://github.com/hafezdivandari) in https://github.com/laravel/framework/pull/49416
+* [10.x] Add `MailMessage` helpers for plain text email notifications by [@onlime](https://github.com/onlime) in https://github.com/laravel/framework/pull/49407
+* [10.x] Test Improvements by [@crynobone](https://github.com/crynobone) in https://github.com/laravel/framework/pull/49426
+* [10.x] Add Conditionable to Pipeline by [@shane-zeng](https://github.com/shane-zeng) in https://github.com/laravel/framework/pull/49429
 
 ## [v10.37.3](https://github.com/laravel/framework/compare/v10.37.2...v10.37.3) - 2023-12-13
 
diff --git a/composer.json b/composer.json
index 9e7705b73db9..5af97271ad45 100644
--- a/composer.json
+++ b/composer.json
@@ -119,12 +119,15 @@
         "psr/simple-cache-implementation": "1.0|2.0|3.0"
     },
     "conflict": {
+        "carbonphp/carbon-doctrine-types": ">=3.0",
+        "doctrine/dbal": ">=4.0",
         "tightenco/collect": "<5.5.33"
     },
     "autoload": {
         "files": [
             "src/Illuminate/Collections/helpers.php",
             "src/Illuminate/Events/functions.php",
+            "src/Illuminate/Filesystem/functions.php",
             "src/Illuminate/Foundation/helpers.php",
             "src/Illuminate/Support/helpers.php"
         ],
diff --git a/src/Illuminate/Console/MigrationGeneratorCommand.php b/src/Illuminate/Console/MigrationGeneratorCommand.php
index a3a3e002b675..35e28f0dc68b 100644
--- a/src/Illuminate/Console/MigrationGeneratorCommand.php
+++ b/src/Illuminate/Console/MigrationGeneratorCommand.php
@@ -5,6 +5,8 @@
 use Illuminate\Filesystem\Filesystem;
 use Illuminate\Support\Composer;
 
+use function Illuminate\Filesystem\join_paths;
+
 abstract class MigrationGeneratorCommand extends Command
 {
     /**
@@ -114,7 +116,7 @@ protected function replaceMigrationPlaceholders($path, $table)
     protected function migrationExists($table)
     {
         return count($this->files->glob(
-            $this->laravel->joinPaths($this->laravel->databasePath('migrations'), '*_*_*_*_create_'.$table.'_table.php')
+            join_paths($this->laravel->databasePath('migrations'), '*_*_*_*_create_'.$table.'_table.php')
         )) !== 0;
     }
 }
diff --git a/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php b/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
index aaafa322860f..1f64a7c25aa7 100755
--- a/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
+++ b/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
@@ -406,7 +406,7 @@ public function compileChange(Blueprint $blueprint, Fluent $command, Connection
      */
     public function compilePrimary(Blueprint $blueprint, Fluent $command)
     {
-        return sprintf('alter table %s drop index if exists `PRIMARY`, add primary key %s(%s)',
+        return sprintf('alter table %s add primary key %s(%s)',
             $this->wrapTable($blueprint),
             $command->algorithm ? 'using '.$command->algorithm : '',
             $this->columnize($command->columns)
diff --git a/src/Illuminate/Filesystem/composer.json b/src/Illuminate/Filesystem/composer.json
index 66925c92b553..2af15697bb47 100644
--- a/src/Illuminate/Filesystem/composer.json
+++ b/src/Illuminate/Filesystem/composer.json
@@ -24,7 +24,10 @@
     "autoload": {
         "psr-4": {
             "Illuminate\\Filesystem\\": ""
-        }
+        },
+        "files": [
+            "functions.php"
+        ]
     },
     "extra": {
         "branch-alias": {
diff --git a/src/Illuminate/Filesystem/functions.php b/src/Illuminate/Filesystem/functions.php
new file mode 100644
index 000000000000..47a26fd5eb38
--- /dev/null
+++ b/src/Illuminate/Filesystem/functions.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Illuminate\Filesystem;
+
+if (! function_exists('Illuminate\Filesystem\join_paths')) {
+    /**
+     * Join the given paths together.
+     *
+     * @param  string|null  $basePath
+     * @param  string  ...$paths
+     * @return string
+     */
+    function join_paths($basePath, string ...$paths)
+    {
+        foreach ($paths as $index => $path) {
+            if (empty($path)) {
+                unset($paths[$index]);
+            } else {
+                $paths[$index] = DIRECTORY_SEPARATOR.ltrim($path, DIRECTORY_SEPARATOR);
+            }
+        }
+
+        return $basePath.implode('', $paths);
+    }
+}
diff --git a/src/Illuminate/Foundation/Application.php b/src/Illuminate/Foundation/Application.php
index 7e9a36fe3b11..268912be9b2c 100755
--- a/src/Illuminate/Foundation/Application.php
+++ b/src/Illuminate/Foundation/Application.php
@@ -29,6 +29,8 @@
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 
+use function Illuminate\Filesystem\join_paths;
+
 class Application extends Container implements ApplicationContract, CachesConfiguration, CachesRoutes, HttpKernelInterface
 {
     use Macroable;
@@ -38,7 +40,7 @@ class Application extends Container implements ApplicationContract, CachesConfig
      *
      * @var string
      */
-    const VERSION = '10.38.0';
+    const VERSION = '10.38.1';
 
     /**
      * The base path for the Laravel installation.
@@ -586,7 +588,7 @@ public function viewPath($path = '')
      */
     public function joinPaths($basePath, $path = '')
     {
-        return $basePath.($path != '' ? DIRECTORY_SEPARATOR.ltrim($path, DIRECTORY_SEPARATOR) : '');
+        return join_paths($basePath, $path);
     }
 
     /**
diff --git a/src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php b/src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php
index a2b2c8c675a9..6717b089d0b6 100644
--- a/src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php
+++ b/src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php
@@ -583,7 +583,7 @@ public function call($method, $uri, $parameters = [], $cookies = [], $files = []
         );
 
         $response = $kernel->handle(
-            $request = Request::createFromBase($symfonyRequest)
+            $request = $this->createTestRequest($symfonyRequest)
         );
 
         $kernel->terminate($request, $response);
@@ -710,6 +710,17 @@ protected function followRedirects($response)
         return $response;
     }
 
+    /**
+     * Create the request instance used for testing from the given Symfony request.
+     *
+     * @param  \Symfony\Component\HttpFoundation\Request  $symfonyRequest
+     * @return \Illuminate\Http\Request
+     */
+    protected function createTestRequest($symfonyRequest)
+    {
+        return Request::createFromBase($symfonyRequest);
+    }
+
     /**
      * Create the test response instance from the given response.
      *
diff --git a/src/Illuminate/Support/Str.php b/src/Illuminate/Support/Str.php
index e3a4019c2c13..fa7960b1cfc8 100644
--- a/src/Illuminate/Support/Str.php
+++ b/src/Illuminate/Support/Str.php
@@ -810,6 +810,17 @@ public static function padRight($value, $length, $pad = ' ')
      */
     public static function parseCallback($callback, $default = null)
     {
+        if (static::contains($callback, "@anonymous\0")) {
+            if (static::substrCount($callback, '@') > 1) {
+                return [
+                    static::beforeLast($callback, '@'),
+                    static::afterLast($callback, '@'),
+                ];
+            }
+
+            return [$callback, $default];
+        }
+
         return static::contains($callback, '@') ? explode('@', $callback, 2) : [$callback, $default];
     }
 
diff --git a/tests/Database/DatabaseMySqlSchemaGrammarTest.php b/tests/Database/DatabaseMySqlSchemaGrammarTest.php
index 7898be1b1d1e..bbe69fb2d466 100755
--- a/tests/Database/DatabaseMySqlSchemaGrammarTest.php
+++ b/tests/Database/DatabaseMySqlSchemaGrammarTest.php
@@ -345,7 +345,7 @@ public function testAddingPrimaryKey()
         $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
 
         $this->assertCount(1, $statements);
-        $this->assertSame('alter table `users` drop index if exists `PRIMARY`, add primary key (`foo`)', $statements[0]);
+        $this->assertSame('alter table `users` add primary key (`foo`)', $statements[0]);
     }
 
     public function testAddingPrimaryKeyWithAlgorithm()
@@ -355,7 +355,7 @@ public function testAddingPrimaryKeyWithAlgorithm()
         $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
 
         $this->assertCount(1, $statements);
-        $this->assertSame('alter table `users` drop index if exists `PRIMARY`, add primary key using hash(`foo`)', $statements[0]);
+        $this->assertSame('alter table `users` add primary key using hash(`foo`)', $statements[0]);
     }
 
     public function testAddingUniqueKey()
diff --git a/tests/Filesystem/JoinPathsHelperTest.php b/tests/Filesystem/JoinPathsHelperTest.php
new file mode 100644
index 000000000000..2a4d7cf2e089
--- /dev/null
+++ b/tests/Filesystem/JoinPathsHelperTest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Illuminate\Tests\Filesystem;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\RequiresOperatingSystem;
+use PHPUnit\Framework\TestCase;
+
+use function Illuminate\Filesystem\join_paths;
+
+class JoinPathsHelperTest extends TestCase
+{
+    #[RequiresOperatingSystem('Linux|DAR')]
+    #[DataProvider('unixDataProvider')]
+    public function testItCanMergePathsForUnix(string $expected, string $given)
+    {
+        $this->assertSame($expected, $given);
+    }
+
+    public static function unixDataProvider()
+    {
+        yield ['app/Http/Kernel.php', join_paths('app', 'Http', 'Kernel.php')];
+        yield ['app/Http/Kernel.php', join_paths('app', '', 'Http', 'Kernel.php')];
+    }
+
+    #[RequiresOperatingSystem('Windows')]
+    #[DataProvider('windowsDataProvider')]
+    public function testItCanMergePathsForWindows(string $expected, string $given)
+    {
+        $this->assertSame($expected, $given);
+    }
+
+    public static function windowsDataProvider()
+    {
+        yield ['app\Http\Kernel.php', join_paths('app', 'Http', 'Kernel.php')];
+        yield ['app\Http\Kernel.php', join_paths('app', '', 'Http', 'Kernel.php')];
+    }
+}
diff --git a/tests/Support/SupportStrTest.php b/tests/Support/SupportStrTest.php
index 698ba8bba4ab..04305fd8a912 100755
--- a/tests/Support/SupportStrTest.php
+++ b/tests/Support/SupportStrTest.php
@@ -328,9 +328,15 @@ public function testConvertCase()
 
     public function testParseCallback()
     {
+        $this->assertEquals(['Class', 'method'], Str::parseCallback('Class@method'));
         $this->assertEquals(['Class', 'method'], Str::parseCallback('Class@method', 'foo'));
         $this->assertEquals(['Class', 'foo'], Str::parseCallback('Class', 'foo'));
         $this->assertEquals(['Class', null], Str::parseCallback('Class'));
+
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'method'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec@method"));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'method'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec@method", 'foo'));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", 'foo'], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec", 'foo'));
+        $this->assertEquals(["Class@anonymous\0/laravel/382.php:8$2ec", null], Str::parseCallback("Class@anonymous\0/laravel/382.php:8$2ec"));
     }
 
     public function testSlug()