diff --git a/src/Configuration/RectorConfigBuilder.php b/src/Configuration/RectorConfigBuilder.php
index b1b3649dd6f..d36fdba3426 100644
--- a/src/Configuration/RectorConfigBuilder.php
+++ b/src/Configuration/RectorConfigBuilder.php
@@ -26,7 +26,6 @@
 use Rector\Doctrine\Set\DoctrineSetList;
 use Rector\Enum\Config\Defaults;
 use Rector\Exception\Configuration\InvalidConfigurationException;
-use Rector\NodeTypeResolver\PHPStan\Scope\Contract\NodeVisitor\ScopeResolverNodeVisitorInterface;
 use Rector\Php\PhpVersionResolver\ComposerJsonPhpVersionResolver;
 use Rector\Php80\Rector\Class_\AnnotationToAttributeRector;
 use Rector\Php80\ValueObject\AnnotationToAttribute;
@@ -1240,11 +1239,6 @@ public function withTreatClassesAsFinal(bool $isTreatClassesAsFinal = true): sel
 
     public function registerService(string $className, ?string $alias = null, ?string $tag = null): self
     {
-        // BC layer since 2.2.9
-        if ($tag === ScopeResolverNodeVisitorInterface::class) {
-            $tag = DecoratingNodeVisitorInterface::class;
-        }
-
         $this->registerServices[] = new RegisteredService($className, $alias, $tag);
 
         return $this;
diff --git a/src/Console/Command/ProcessCommand.php b/src/Console/Command/ProcessCommand.php
index a8e7451628f..42c3256d6aa 100644
--- a/src/Console/Command/ProcessCommand.php
+++ b/src/Console/Command/ProcessCommand.php
@@ -183,7 +183,6 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         // 4. Deprecations reporter
         $this->deprecatedRulesReporter->reportDeprecatedRules();
         $this->deprecatedRulesReporter->reportDeprecatedSkippedRules();
-        $this->deprecatedRulesReporter->reportDeprecatedNodeTypes();
         $this->deprecatedRulesReporter->reportDeprecatedRectorUnsupportedMethods();
 
         $this->missConfigurationReporter->reportSkippedNeverRegisteredRules();
diff --git a/src/NodeTypeResolver/PHPStan/Scope/Contract/NodeVisitor/ScopeResolverNodeVisitorInterface.php b/src/NodeTypeResolver/PHPStan/Scope/Contract/NodeVisitor/ScopeResolverNodeVisitorInterface.php
deleted file mode 100644
index df374f9627e..00000000000
--- a/src/NodeTypeResolver/PHPStan/Scope/Contract/NodeVisitor/ScopeResolverNodeVisitorInterface.php
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\NodeTypeResolver\PHPStan\Scope\Contract\NodeVisitor;
-
-use PhpParser\NodeVisitor;
-
-/**
- * @deprecated Since 2.2.9. Use \Rector\Contract\PhpParser\DecoratingNodeVisitorInterface instead
- */
-interface ScopeResolverNodeVisitorInterface extends NodeVisitor
-{
-}
diff --git a/src/PhpParser/Node/CustomNode/FileWithoutNamespace.php b/src/PhpParser/Node/CustomNode/FileWithoutNamespace.php
deleted file mode 100644
index 5f256257607..00000000000
--- a/src/PhpParser/Node/CustomNode/FileWithoutNamespace.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\PhpParser\Node\CustomNode;
-
-use Override;
-use Rector\PhpParser\Node\FileNode;
-
-/**
- * @deprecated Use @see \Rector\PhpParser\Node\FileNode instead
- * @api
- *
- * Inspired by https://github.com/phpstan/phpstan-src/commit/ed81c3ad0b9877e6122c79b4afda9d10f3994092
- */
-final class FileWithoutNamespace extends FileNode
-{
-    #[Override]
-    public function getType(): string
-    {
-        return 'FileWithoutNamespace';
-    }
-
-    /**
-     * @return string[]
-     */
-    #[Override]
-    public function getSubNodeNames(): array
-    {
-        return ['stmts'];
-    }
-}
diff --git a/src/PhpParser/NodeTraverser/RectorNodeTraverser.php b/src/PhpParser/NodeTraverser/RectorNodeTraverser.php
index f27610da739..6dfdc9a44b6 100644
--- a/src/PhpParser/NodeTraverser/RectorNodeTraverser.php
+++ b/src/PhpParser/NodeTraverser/RectorNodeTraverser.php
@@ -13,8 +13,6 @@
 use Rector\Configuration\ConfigurationRuleFilter;
 use Rector\Contract\Rector\RectorInterface;
 use Rector\Exception\ShouldNotHappenException;
-use Rector\PhpParser\Node\CustomNode\FileWithoutNamespace;
-use Rector\PhpParser\Node\FileNode;
 use Rector\VersionBonding\ComposerPackageConstraintFilter;
 use Rector\VersionBonding\PhpVersionedFilter;
 use Webmozart\Assert\Assert;
@@ -127,12 +125,6 @@ public function getVisitorsForNode(Node $node): array
             /** @var RectorInterface $visitor */
             foreach ($this->visitors as $visitor) {
                 foreach ($visitor->getNodeTypes() as $nodeType) {
-                    // BC layer matching
-                    if ($nodeType === FileWithoutNamespace::class && $nodeClass === FileNode::class) {
-                        $this->visitorsPerNodeClass[$nodeClass][] = $visitor;
-                        continue;
-                    }
-
                     if (is_a($nodeClass, $nodeType, true)) {
                         $this->visitorsPerNodeClass[$nodeClass][] = $visitor;
                         continue 2;
diff --git a/src/Reporting/DeprecatedRulesReporter.php b/src/Reporting/DeprecatedRulesReporter.php
index 6f058558015..042ad8d05ce 100644
--- a/src/Reporting/DeprecatedRulesReporter.php
+++ b/src/Reporting/DeprecatedRulesReporter.php
@@ -8,7 +8,6 @@
 use Rector\Configuration\Option;
 use Rector\Configuration\Parameter\SimpleParameterProvider;
 use Rector\Contract\Rector\RectorInterface;
-use Rector\PhpParser\Node\CustomNode\FileWithoutNamespace;
 use Rector\PhpParser\Node\FileNode;
 use ReflectionMethod;
 use Symfony\Component\Console\Style\SymfonyStyle;
@@ -75,36 +74,4 @@ public function reportDeprecatedRectorUnsupportedMethods(): void
             }
         }
     }
-
-    public function reportDeprecatedNodeTypes(): void
-    {
-        // helper property to avoid reporting multiple times
-        static $reportedClasses = [];
-
-        foreach ($this->rectors as $rector) {
-            if (in_array(FileWithoutNamespace::class, $rector->getNodeTypes(), true)) {
-                $this->reportDeprecatedFileWithoutNamespace($rector);
-                continue;
-            }
-
-            // already reported, skip
-            if (in_array($rector::class, $reportedClasses, true)) {
-                continue;
-            }
-
-            $reportedClasses[] = $rector::class;
-        }
-    }
-
-    private function reportDeprecatedFileWithoutNamespace(RectorInterface $rector): void
-    {
-        $this->symfonyStyle->warning(sprintf(
-            'Node type "%s" is deprecated and will be removed. Use "%s" in the "%s" rule instead instead.%sSee %s for upgrade path',
-            FileWithoutNamespace::class,
-            FileNode::class,
-            $rector::class,
-            PHP_EOL . PHP_EOL,
-            'https://github.com/rectorphp/rector-src/blob/main/UPGRADING.md'
-        ));
-    }
 }
diff --git a/tests/Issues/FileWithoutNamespaceCompat/FileWithoutNamespaceCompatTest.php b/tests/Issues/FileWithoutNamespaceCompat/FileWithoutNamespaceCompatTest.php
deleted file mode 100644
index f4f57be3b9e..00000000000
--- a/tests/Issues/FileWithoutNamespaceCompat/FileWithoutNamespaceCompatTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\Tests\Issues\FileWithoutNamespaceCompat;
-
-use Iterator;
-use PHPUnit\Framework\Attributes\DataProvider;
-use Rector\Testing\PHPUnit\AbstractRectorTestCase;
-
-final class FileWithoutNamespaceCompatTest extends AbstractRectorTestCase
-{
-    #[DataProvider('provideData')]
-    public function test(string $filePath): void
-    {
-        $this->doTestFile($filePath);
-    }
-
-    public static function provideData(): Iterator
-    {
-        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
-    }
-
-    public function provideConfigFilePath(): string
-    {
-        return __DIR__ . '/config/configured_rule.php';
-    }
-}
diff --git a/tests/Issues/FileWithoutNamespaceCompat/Fixture/namespace_less_file.php.inc b/tests/Issues/FileWithoutNamespaceCompat/Fixture/namespace_less_file.php.inc
deleted file mode 100644
index c6a2f6dbc4d..00000000000
--- a/tests/Issues/FileWithoutNamespaceCompat/Fixture/namespace_less_file.php.inc
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-
-final class NamespaceLessFiles
-{
-}
-
-?>
------
-<?php
-
-final class NamespaceLessFiles
-{
-}
-function someFunction()
-{
-}
diff --git a/tests/Issues/FileWithoutNamespaceCompat/Rector/SubscribedToFileWithoutNamespaceRector.php b/tests/Issues/FileWithoutNamespaceCompat/Rector/SubscribedToFileWithoutNamespaceRector.php
deleted file mode 100644
index 6dc90169a31..00000000000
--- a/tests/Issues/FileWithoutNamespaceCompat/Rector/SubscribedToFileWithoutNamespaceRector.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\Tests\Issues\FileWithoutNamespaceCompat\Rector;
-
-use PhpParser\Node;
-use PhpParser\Node\Name;
-use PhpParser\Node\Stmt\Function_;
-use Rector\PhpParser\Node\CustomNode\FileWithoutNamespace;
-use Rector\PhpParser\Node\FileNode;
-use Rector\Rector\AbstractRector;
-use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
-
-final class SubscribedToFileWithoutNamespaceRector extends AbstractRector
-{
-    public function getRuleDefinition(): RuleDefinition
-    {
-        return new RuleDefinition('Adds a function to FileWithoutNamespace nodes', []);
-    }
-
-    public function getNodeTypes(): array
-    {
-        return [FileWithoutNamespace::class];
-    }
-
-    /**
-     * @param FileWithoutNamespace $node
-     */
-    public function refactor(Node $node): FileNode
-    {
-        $function = new Function_('someFunction');
-        // required for PHPStan scope resolver refresh
-        $function->namespacedName = new Name('someFunction');
-
-        $node->stmts[] = $function;
-
-        return $node;
-    }
-}
diff --git a/tests/Issues/FileWithoutNamespaceCompat/config/configured_rule.php b/tests/Issues/FileWithoutNamespaceCompat/config/configured_rule.php
deleted file mode 100644
index ddceb900caf..00000000000
--- a/tests/Issues/FileWithoutNamespaceCompat/config/configured_rule.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use Rector\Config\RectorConfig;
-use Rector\Tests\Issues\FileWithoutNamespaceCompat\Rector\SubscribedToFileWithoutNamespaceRector;
-
-return RectorConfig::configure()
-    ->withRules([SubscribedToFileWithoutNamespaceRector::class]);