diff --git a/docs/book/v3/migration/v2-to-v3.md b/docs/book/v3/migration/v2-to-v3.md
index 64ea5528..6bf4e247 100644
--- a/docs/book/v3/migration/v2-to-v3.md
+++ b/docs/book/v3/migration/v2-to-v3.md
@@ -152,6 +152,11 @@ The following methods have been removed:
 
 The constructor now only accepts an associative array of [documented options](../standard-filters.md#denylist).
 
+#### `Dir`
+
+This filter will not cast a given integer or float value to a string anymore.
+The return value changed from `.` to return the given integer or float value.
+
 #### `HtmlEntities`
 
 The following methods have been removed:
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 9f9b753f..50999eb1 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -16,11 +16,6 @@
       <code><![CDATA[isOptions]]></code>
     </PossiblyUnusedMethod>
   </file>
-  <file src="src/Dir.php">
-    <DeprecatedClass>
-      <code><![CDATA[AbstractFilter]]></code>
-    </DeprecatedClass>
-  </file>
   <file src="src/File/Rename.php">
     <DeprecatedClass>
       <code><![CDATA[Filter\AbstractFilter]]></code>
diff --git a/src/Dir.php b/src/Dir.php
index a0045ad3..eea87d9a 100644
--- a/src/Dir.php
+++ b/src/Dir.php
@@ -5,28 +5,29 @@
 namespace Laminas\Filter;
 
 use function dirname;
-use function is_scalar;
+use function is_string;
 
 /**
- * @psalm-type Options = array{}
- * @extends AbstractFilter<Options>
+ * @implements FilterInterface<string>
  */
-final class Dir extends AbstractFilter
+final class Dir implements FilterInterface
 {
     /**
      * Defined by Laminas\Filter\FilterInterface
      *
      * Returns dirname($value)
-     *
-     * @psalm-return ($value is scalar ? string : mixed)
      */
     public function filter(mixed $value): mixed
     {
-        if (! is_scalar($value)) {
+        if (! is_string($value) || $value === '') {
             return $value;
         }
-        $value = (string) $value;
 
         return dirname($value);
     }
+
+    public function __invoke(mixed $value): mixed
+    {
+        return $this->filter($value);
+    }
 }
diff --git a/test/DirTest.php b/test/DirTest.php
index 7b1eb91d..fb94bb3e 100644
--- a/test/DirTest.php
+++ b/test/DirTest.php
@@ -14,17 +14,24 @@ class DirTest extends TestCase
     /**
      * Ensures that the filter follows expected behavior
      */
-    public function testBasic(): void
+    #[DataProvider('defaultSettingsDataProvider')]
+    public function testBasic(string $input, string $expected): void
     {
-        $filter         = new DirFilter();
-        $valuesExpected = [
-            'filename'              => '.',
-            '/path/to/filename'     => '/path/to',
-            '/path/to/filename.ext' => '/path/to',
+        $filter = new DirFilter();
+
+        self::assertSame($expected, $filter($input));
+        self::assertSame($expected, $filter->__invoke($input));
+        self::assertSame($expected, $filter->filter($input));
+    }
+
+    public static function defaultSettingsDataProvider(): array
+    {
+        return [
+            ['12345', '.'],
+            ['filename', '.'],
+            ['/path/to/filename', '/path/to'],
+            ['/path/to/filename.ext', '/path/to'],
         ];
-        foreach ($valuesExpected as $input => $output) {
-            self::assertSame($output, $filter($input));
-        }
     }
 
     /** @return list<array{0: mixed}> */
@@ -33,6 +40,10 @@ public static function returnUnfilteredDataProvider(): array
         return [
             [null],
             [new stdClass()],
+            [''],
+            [12345],
+            [true],
+            [false],
             [
                 [
                     '/path/to/filename',