diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/fixture.php.inc b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/fixture.php.inc
deleted file mode 100644
index b783006b099..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/fixture.php.inc
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-class Fixture
-{
-    public function run($foo)
-    {
-        settype($foo, 'string');
-        settype($foo, 'array');
-        settype($foo, 'INT');
-        settype($foo, 'float');
-        settype($foo, 'double');
-        settype($foo, 'bool');
-        settype($foo, 'boolean');
-    }
-
-    public function null()
-    {
-        settype($foo, 'null');
-    }
-}
-
-?>
------
-<?php
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-class Fixture
-{
-    public function run($foo)
-    {
-        $foo = (string) $foo;
-        $foo = (array) $foo;
-        $foo = (int) $foo;
-        $foo = (double) $foo;
-        $foo = (double) $foo;
-        $foo = (bool) $foo;
-        $foo = (bool) $foo;
-    }
-
-    public function null()
-    {
-        $foo = null;
-    }
-}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_args.php.inc b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_args.php.inc
deleted file mode 100644
index 4f0bd9503c0..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_args.php.inc
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-final class SkipArgs
-{
-    public function run($foo)
-    {
-        is_bool(settype($foo, 'string'));
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_array_items.php.inc b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_array_items.php.inc
deleted file mode 100644
index b0cddb83172..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_array_items.php.inc
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-class SkipArrayItems
-{
-    public function run($foo)
-    {
-        $result = [settype($foo, 'string')];
-        $result = [0 => settype($foo, 'string')];
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_assign_and_return.php.inc b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_assign_and_return.php.inc
deleted file mode 100644
index 3257de09901..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_assign_and_return.php.inc
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-final class SkipAssignAndrReturn
-{
-    public function run($foo)
-    {
-        // $result is always bool, as settype() returns true on success, false on failure
-        $result = settype($foo, 'string');
-    }
-
-    public function retype($foo)
-    {
-        // $result is always bool, as settype() returns true on success, false on failure
-        return settype($foo, 'string');
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_invalid_cast_type.php.inc b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_invalid_cast_type.php.inc
deleted file mode 100644
index 85e78be0474..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/Fixture/skip_invalid_cast_type.php.inc
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\Fixture;
-
-final class SkipInvalidCastType
-{
-    public function run($foo)
-    {
-        is_bool(settype($foo, 'super-element'));
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/SetTypeToCastRectorTest.php b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/SetTypeToCastRectorTest.php
deleted file mode 100644
index b8b491474a0..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/SetTypeToCastRectorTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector;
-
-use Iterator;
-use PHPUnit\Framework\Attributes\DataProvider;
-use Rector\Testing\PHPUnit\AbstractRectorTestCase;
-
-final class SetTypeToCastRectorTest 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/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/config/configured_rule.php b/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/config/configured_rule.php
deleted file mode 100644
index af33d373c26..00000000000
--- a/rules-tests/CodeQuality/Rector/FuncCall/SetTypeToCastRector/config/configured_rule.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use Rector\CodeQuality\Rector\FuncCall\SetTypeToCastRector;
-use Rector\Config\RectorConfig;
-
-return RectorConfig::configure()
-    ->withRules([SetTypeToCastRector::class]);
diff --git a/rules/CodeQuality/Rector/FuncCall/SetTypeToCastRector.php b/rules/CodeQuality/Rector/FuncCall/SetTypeToCastRector.php
index e2c8215fe24..c95361ba6dc 100644
--- a/rules/CodeQuality/Rector/FuncCall/SetTypeToCastRector.php
+++ b/rules/CodeQuality/Rector/FuncCall/SetTypeToCastRector.php
@@ -5,46 +5,18 @@
 namespace Rector\CodeQuality\Rector\FuncCall;
 
 use PhpParser\Node;
-use PhpParser\Node\Expr\Assign;
-use PhpParser\Node\Expr\Cast;
-use PhpParser\Node\Expr\Cast\Array_;
-use PhpParser\Node\Expr\Cast\Bool_;
-use PhpParser\Node\Expr\Cast\Double;
-use PhpParser\Node\Expr\Cast\Int_;
-use PhpParser\Node\Expr\Cast\Object_;
-use PhpParser\Node\Expr\Cast\String_;
-use PhpParser\Node\Expr\FuncCall;
 use PhpParser\Node\Stmt\Expression;
-use Rector\PhpParser\Node\Value\ValueResolver;
+use Rector\Configuration\Deprecation\Contract\DeprecatedInterface;
+use Rector\Exception\ShouldNotHappenException;
 use Rector\Rector\AbstractRector;
 use Rector\RuleDoc\CodeSample\CodeSample;
 use Rector\RuleDoc\RuleDefinition;
 
 /**
- * @see \Rector\Tests\CodeQuality\Rector\FuncCall\SetTypeToCastRector\SetTypeToCastRectorTest
+ * @deprecated This rule is deprecated, as it handles a niche `settype()` use case that is not part of the PHP upgrade path.
  */
-final class SetTypeToCastRector extends AbstractRector
+final class SetTypeToCastRector extends AbstractRector implements DeprecatedInterface
 {
-    /**
-     * @var array<string, class-string<Cast>>
-     */
-    private const array TYPE_TO_CAST = [
-        'array' => Array_::class,
-        'bool' => Bool_::class,
-        'boolean' => Bool_::class,
-        'double' => Double::class,
-        'float' => Double::class,
-        'int' => Int_::class,
-        'integer' => Int_::class,
-        'object' => Object_::class,
-        'string' => String_::class,
-    ];
-
-    public function __construct(
-        private readonly ValueResolver $valueResolver
-    ) {
-    }
-
     public function getRuleDefinition(): RuleDefinition
     {
         return new RuleDefinition(
@@ -87,59 +59,11 @@ public function getNodeTypes(): array
     /**
      * @param Expression $node
      */
-    public function refactor(Node $node): null|Expression
-    {
-        // skip expr that are not standalone line, as settype() returns success bool value
-        // and cannot be casted
-        if (! $node->expr instanceof FuncCall) {
-            return null;
-        }
-
-        $assign = $this->refactorFuncCall($node->expr);
-        if (! $assign instanceof Assign) {
-            return null;
-        }
-
-        return new Expression($assign);
-    }
-
-    private function refactorFuncCall(FuncCall $funcCall): Assign|null
+    public function refactor(Node $node): ?Node
     {
-        if (! $this->isName($funcCall, 'setType')) {
-            return null;
-        }
-
-        if ($funcCall->isFirstClassCallable()) {
-            return null;
-        }
-
-        if (count($funcCall->getArgs()) < 2) {
-            return null;
-        }
-
-        $secondArg = $funcCall->getArgs()[1];
-
-        $typeValue = $this->valueResolver->getValue($secondArg->value);
-        if (! is_string($typeValue)) {
-            return null;
-        }
-
-        $typeValue = strtolower($typeValue);
-
-        $firstArg = $funcCall->getArgs()[0];
-        $variable = $firstArg->value;
-
-        if (isset(self::TYPE_TO_CAST[$typeValue])) {
-            $castClass = self::TYPE_TO_CAST[$typeValue];
-            $castNode = new $castClass($variable);
-
-            return new Assign($variable, $castNode);
-        }
-
-        if ($typeValue === 'null') {
-            return new Assign($variable, $this->nodeFactory->createNull());
-        }
-
-        return null;
+        throw new ShouldNotHappenException(sprintf(
+            '"%s" rule is deprecated, as it handles a niche settype() use case that is not part of the PHP upgrade path',
+            self::class
+        ));
     }
 }
diff --git a/src/Config/Level/CodeQualityLevel.php b/src/Config/Level/CodeQualityLevel.php
index 69f118a6056..79f3e963fe0 100644
--- a/src/Config/Level/CodeQualityLevel.php
+++ b/src/Config/Level/CodeQualityLevel.php
@@ -40,7 +40,6 @@
 use Rector\CodeQuality\Rector\FuncCall\InlineIsAInstanceOfRector;
 use Rector\CodeQuality\Rector\FuncCall\IsAWithStringWithThirdArgumentRector;
 use Rector\CodeQuality\Rector\FuncCall\RemoveSoleValueSprintfRector;
-use Rector\CodeQuality\Rector\FuncCall\SetTypeToCastRector;
 use Rector\CodeQuality\Rector\FuncCall\SimplifyFuncGetArgsCountRector;
 use Rector\CodeQuality\Rector\FuncCall\SimplifyInArrayValuesRector;
 use Rector\CodeQuality\Rector\FuncCall\SimplifyStrposLowerRector;
@@ -152,7 +151,6 @@ final class CodeQualityLevel
         ChangeArrayPushToArrayAssignRector::class,
         ForRepeatedCountToOwnVariableRector::class,
         CommonNotEqualRector::class,
-        SetTypeToCastRector::class,
         LogicalToBooleanRector::class,
         VarToPublicPropertyRector::class,
         IssetOnPropertyObjectToPropertyExistsRector::class,