diff --git a/BaseUri.php b/BaseUri.php
index 31ddbcdf..965803e0 100644
--- a/BaseUri.php
+++ b/BaseUri.php
@@ -17,6 +17,7 @@
 use League\Uri\Contracts\UriAccess;
 use League\Uri\Contracts\UriInterface;
 use League\Uri\Exceptions\MissingFeature;
+use League\Uri\Idna\Converter;
 use League\Uri\IPv4\Converter as IPv4Converter;
 use Psr\Http\Message\UriFactoryInterface;
 use Psr\Http\Message\UriInterface as Psr7UriInterface;
@@ -27,7 +28,6 @@
 use function end;
 use function explode;
 use function implode;
-use function in_array;
 use function str_repeat;
 use function strpos;
 use function substr;
@@ -161,6 +161,14 @@ public function isSameDocument(Stringable|string $uri): bool
         return $this->normalize(static::filterUri($uri)) === $this->normalize($this->uri);
     }
 
+    /**
+     * Tells whether the URI contains an Internationalized Domain Name (IDN).
+     */
+    public function hasIdn(): bool
+    {
+        return Converter::isIdn($this->uri->getHost());
+    }
+
     /**
      * Resolves a URI against a base URI using RFC3986 rules.
      *
@@ -512,7 +520,11 @@ final protected static function formatPath(string $path, string $basePath): stri
         $slashPosition = strpos($path, '/');
 
         return match (true) {
-            '' === $path => in_array($basePath, ['', '/'], true) ? $basePath : './',
+            '' === $path => match (true) {
+                '' === $basePath,
+                '/' === $basePath => $basePath,
+                default => './',
+            },
             false === $colonPosition => $path,
             false === $slashPosition,
             $colonPosition < $slashPosition  =>  "./$path",
diff --git a/BaseUriTest.php b/BaseUriTest.php
index 5f3357e1..1704309d 100644
--- a/BaseUriTest.php
+++ b/BaseUriTest.php
@@ -451,4 +451,41 @@ public function testGetOriginWithPsr7Implementation(Psr7UriInterface|Uri|string
 
         self::assertSame($expectedOrigin, $origin);
     }
+
+    /**
+     * @dataProvider provideIDNUri
+     */
+    public function testHostIsIDN(string $uri, bool $expected): void
+    {
+        self::assertSame($expected, BaseUri::from($uri)->hasIdn());
+        self::assertSame($expected, BaseUri::from(Utils::uriFor($uri), new \GuzzleHttp\Psr7\HttpFactory())->hasIdn());
+    }
+
+    public static function provideIDNUri(): iterable
+    {
+        yield 'ascii uri (1)' => [
+            'uri' => 'https://www.example.com',
+            'expected' => false,
+        ];
+
+        yield 'ascii uri with invalid converted i18n' => [
+            'uri' => 'https://www.xn--ample.com',
+            'expected' => false,
+        ];
+
+        yield 'idn uri' => [
+            'uri' => 'https://www.bébé.be',
+            'expected' => true,
+        ];
+
+        yield 'uri without host' => [
+            'uri' => '/path/to/the?sky=1',
+            'expected' => false,
+        ];
+
+        yield 'uri without empty host' => [
+            'uri' => 'file:///path/to/the/sky',
+            'expected' => false,
+        ];
+    }
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac7cc384..558a250b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,25 @@
 
 All Notable changes to `League\Uri` will be documented in this file
 
-## 7.1.0 - 2023-08-21
+## [7.1.0](https://github.com/thephpleague/uri/compare/7.1.0...master) - TBD
+
+### Added
+
+- `BasUri::hasIDN`
+
+### Fixed
+
+- None
+
+### Deprecated
+
+- None
+
+### Removed
+
+- None
+
+## [7.1.0](https://github.com/thephpleague/uri/compare/7.0.0...7.1.0) - 2023-08-21
 
 ### Added