diff --git a/composer.json b/composer.json
index 3664d21d6..6e6bf2c08 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
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 		"fusonic/opengraph": "^2.3.0",
 		"giggsey/libphonenumber-for-php-lite": "^8.13.48",
-		"guzzlehttp/guzzle": "^7.9.2",
+		"guzzlehttp/guzzle": "^7.9.3",
 		"icewind/searchdav": "^3.2.0",
 		"icewind/streams": "^0.7.7",
 		"kornrunner/blurhash": "^1.2",
@@ -39,7 +39,7 @@
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 		"pear/pear-core-minimal": "^1.10",
 		"php-http/guzzle7-adapter": "^1.0.0",
-		"php-opencloud/openstack": "^3.1",
+		"php-opencloud/openstack": "^3.12",
 		"phpseclib/phpseclib": "^2.0.45",
 		"pimple/pimple": "^3.5.0",
 		"psr/clock": "^1.0",
diff --git a/composer.lock b/composer.lock
index b8d1c272b..5661d5da1 100644
--- a/composer.lock
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@@ -1065,16 +1065,16 @@
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+            "version": "2.2.0",
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@@ -1254,7 +1254,7 @@
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-                "source": "https://github.com/guzzle/promises/tree/2.0.4"
+                "source": "https://github.com/guzzle/promises/tree/2.2.0"
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+            "time": "2025-03-27T13:27:01+00:00"
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+            "time": "2025-03-27T12:30:47+00:00"
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@@ -1456,7 +1456,7 @@
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-                "source": "https://github.com/guzzle/uri-template/tree/v1.0.3"
+                "source": "https://github.com/guzzle/uri-template/tree/v1.0.4"
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@@ -1472,7 +1472,7 @@
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-            "time": "2023-12-03T19:50:20+00:00"
+            "time": "2025-02-03T10:55:03+00:00"
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@@ -2697,16 +2697,16 @@
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                 "url": "https://github.com/php-opencloud/openstack.git",
-                "reference": "2ed9c10badd8eb2645870a7d1f6e9dabe809d6aa"
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@@ -2768,9 +2768,9 @@
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+                "source": "https://github.com/php-opencloud/openstack/tree/v3.12.0"
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-            "time": "2024-04-02T12:17:34+00:00"
+            "time": "2025-01-07T07:11:23+00:00"
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diff --git a/composer/installed.json b/composer/installed.json
index edd4e741a..d2e803f92 100644
--- a/composer/installed.json
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@@ -1104,17 +1104,17 @@
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-                "reference": "d281ed313b989f213357e3be1a179f02196ac99b"
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@@ -1141,7 +1141,7 @@
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-            "time": "2024-07-24T11:22:20+00:00",
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@@ -1213,7 +1213,7 @@
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-                "source": "https://github.com/guzzle/guzzle/tree/7.9.2"
+                "source": "https://github.com/guzzle/guzzle/tree/7.9.3"
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@@ -1233,17 +1233,17 @@
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-            "version": "2.0.4",
-            "version_normalized": "2.0.4.0",
+            "version": "2.2.0",
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-                "reference": "f9c436286ab2892c7db7be8c8da4ef61ccf7b455",
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@@ -1253,7 +1253,7 @@
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@@ -1299,7 +1299,7 @@
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-                "source": "https://github.com/guzzle/promises/tree/2.0.4"
+                "source": "https://github.com/guzzle/promises/tree/2.2.0"
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@@ -1319,17 +1319,17 @@
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-                "reference": "a70f5c95fb43bc83f07c9c948baa0dc1829bf201"
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@@ -1350,7 +1350,7 @@
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-            "time": "2024-07-18T11:15:46+00:00",
+            "time": "2025-03-27T12:30:47+00:00",
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@@ -1418,7 +1418,7 @@
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-                "source": "https://github.com/guzzle/psr7/tree/2.7.0"
+                "source": "https://github.com/guzzle/psr7/tree/2.7.1"
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@@ -1438,17 +1438,17 @@
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-            "version_normalized": "1.0.3.0",
+            "version": "v1.0.4",
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-                "reference": "ecea8feef63bd4fef1f037ecb288386999ecc11c"
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-                "reference": "ecea8feef63bd4fef1f037ecb288386999ecc11c",
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@@ -1460,7 +1460,7 @@
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-            "time": "2023-12-03T19:50:20+00:00",
+            "time": "2025-02-03T10:55:03+00:00",
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@@ -1507,7 +1507,7 @@
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-                "source": "https://github.com/guzzle/uri-template/tree/v1.0.3"
+                "source": "https://github.com/guzzle/uri-template/tree/v1.0.4"
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@@ -2811,17 +2811,17 @@
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-            "version_normalized": "3.10.0.0",
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@@ -2841,7 +2841,7 @@
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+            "time": "2025-01-07T07:11:23+00:00",
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@@ -2885,7 +2885,7 @@
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+                "source": "https://github.com/php-opencloud/openstack/tree/v3.12.0"
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diff --git a/composer/installed.php b/composer/installed.php
index d1710ca9c..244d6c302 100644
--- a/composer/installed.php
+++ b/composer/installed.php
@@ -146,36 +146,36 @@
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-            'reference' => 'f9c436286ab2892c7db7be8c8da4ef61ccf7b455',
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-            'version' => '2.7.0.0',
-            'reference' => 'a70f5c95fb43bc83f07c9c948baa0dc1829bf201',
+            'pretty_version' => '2.7.1',
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-            'version' => '1.0.3.0',
-            'reference' => 'ecea8feef63bd4fef1f037ecb288386999ecc11c',
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@@ -392,9 +392,9 @@
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         ),
         'php-opencloud/openstack' => array(
-            'pretty_version' => 'v3.10.0',
-            'version' => '3.10.0.0',
-            'reference' => '2ed9c10badd8eb2645870a7d1f6e9dabe809d6aa',
+            'pretty_version' => 'v3.12.0',
+            'version' => '3.12.0.0',
+            'reference' => '9886899de3a81e95dd6cb352253870fa02abd0f9',
             'type' => 'library',
             'install_path' => __DIR__ . '/../php-opencloud/openstack',
             'aliases' => array(),
diff --git a/guzzlehttp/guzzle/src/Cookie/SetCookie.php b/guzzlehttp/guzzle/src/Cookie/SetCookie.php
index c9806da88..47c4d10ae 100644
--- a/guzzlehttp/guzzle/src/Cookie/SetCookie.php
+++ b/guzzlehttp/guzzle/src/Cookie/SetCookie.php
@@ -62,6 +62,10 @@ public static function fromString(string $cookie): self
                             if (is_numeric($value)) {
                                 $data[$search] = (int) $value;
                             }
+                        } elseif ($search === 'Secure' || $search === 'Discard' || $search === 'HttpOnly') {
+                            if ($value) {
+                                $data[$search] = true;
+                            }
                         } else {
                             $data[$search] = $value;
                         }
diff --git a/guzzlehttp/guzzle/src/Handler/Proxy.php b/guzzlehttp/guzzle/src/Handler/Proxy.php
index f045b526c..9df70cf23 100644
--- a/guzzlehttp/guzzle/src/Handler/Proxy.php
+++ b/guzzlehttp/guzzle/src/Handler/Proxy.php
@@ -17,10 +17,10 @@ class Proxy
      * Sends synchronous requests to a specific handler while sending all other
      * requests to another handler.
      *
-     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default Handler used for normal responses
-     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $sync    Handler used for synchronous responses.
+     * @param callable(RequestInterface, array): PromiseInterface $default Handler used for normal responses
+     * @param callable(RequestInterface, array): PromiseInterface $sync    Handler used for synchronous responses.
      *
-     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler.
+     * @return callable(RequestInterface, array): PromiseInterface Returns the composed handler.
      */
     public static function wrapSync(callable $default, callable $sync): callable
     {
@@ -37,10 +37,10 @@ public static function wrapSync(callable $default, callable $sync): callable
      * performance benefits of curl while still supporting true streaming
      * through the StreamHandler.
      *
-     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default   Handler used for non-streaming responses
-     * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $streaming Handler used for streaming responses
+     * @param callable(RequestInterface, array): PromiseInterface $default   Handler used for non-streaming responses
+     * @param callable(RequestInterface, array): PromiseInterface $streaming Handler used for streaming responses
      *
-     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler.
+     * @return callable(RequestInterface, array): PromiseInterface Returns the composed handler.
      */
     public static function wrapStreaming(callable $default, callable $streaming): callable
     {
diff --git a/guzzlehttp/guzzle/src/Handler/StreamHandler.php b/guzzlehttp/guzzle/src/Handler/StreamHandler.php
index 1d89a8fbc..083049ea8 100644
--- a/guzzlehttp/guzzle/src/Handler/StreamHandler.php
+++ b/guzzlehttp/guzzle/src/Handler/StreamHandler.php
@@ -53,8 +53,14 @@ public function __invoke(RequestInterface $request, array $options): PromiseInte
             $request = $request->withoutHeader('Expect');
 
             // Append a content-length header if body size is zero to match
-            // cURL's behavior.
-            if (0 === $request->getBody()->getSize()) {
+            // the behavior of `CurlHandler`
+            if (
+                (
+                    0 === \strcasecmp('PUT', $request->getMethod())
+                    || 0 === \strcasecmp('POST', $request->getMethod())
+                )
+                && 0 === $request->getBody()->getSize()
+            ) {
                 $request = $request->withHeader('Content-Length', '0');
             }
 
diff --git a/guzzlehttp/guzzle/src/Pool.php b/guzzlehttp/guzzle/src/Pool.php
index 6277c61fb..ddc304bb1 100644
--- a/guzzlehttp/guzzle/src/Pool.php
+++ b/guzzlehttp/guzzle/src/Pool.php
@@ -86,7 +86,7 @@ public function promise(): PromiseInterface
      * @param ClientInterface $client   Client used to send the requests
      * @param array|\Iterator $requests Requests to send concurrently.
      * @param array           $options  Passes through the options available in
-     *                                  {@see \GuzzleHttp\Pool::__construct}
+     *                                  {@see Pool::__construct}
      *
      * @return array Returns an array containing the response or an exception
      *               in the same order that the requests were sent.
diff --git a/guzzlehttp/guzzle/src/Utils.php b/guzzlehttp/guzzle/src/Utils.php
index df529270e..c6a5893dd 100644
--- a/guzzlehttp/guzzle/src/Utils.php
+++ b/guzzlehttp/guzzle/src/Utils.php
@@ -79,7 +79,7 @@ public static function debugResource($value = null)
      *
      * The returned handler is not wrapped by any default middlewares.
      *
-     * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the best handler for the given system.
+     * @return callable(\Psr\Http\Message\RequestInterface, array): Promise\PromiseInterface Returns the best handler for the given system.
      *
      * @throws \RuntimeException if no viable Handler is available.
      */
diff --git a/guzzlehttp/guzzle/src/functions.php b/guzzlehttp/guzzle/src/functions.php
index 5edc66ab1..9ab4b9649 100644
--- a/guzzlehttp/guzzle/src/functions.php
+++ b/guzzlehttp/guzzle/src/functions.php
@@ -50,7 +50,7 @@ function debug_resource($value = null)
  *
  * The returned handler is not wrapped by any default middlewares.
  *
- * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the best handler for the given system.
+ * @return callable(\Psr\Http\Message\RequestInterface, array): Promise\PromiseInterface Returns the best handler for the given system.
  *
  * @throws \RuntimeException if no viable Handler is available.
  *
diff --git a/guzzlehttp/psr7/src/UploadedFile.php b/guzzlehttp/psr7/src/UploadedFile.php
index 9c9ea49fb..d9b779f13 100644
--- a/guzzlehttp/psr7/src/UploadedFile.php
+++ b/guzzlehttp/psr7/src/UploadedFile.php
@@ -11,15 +11,15 @@
 
 class UploadedFile implements UploadedFileInterface
 {
-    private const ERRORS = [
-        UPLOAD_ERR_OK,
-        UPLOAD_ERR_INI_SIZE,
-        UPLOAD_ERR_FORM_SIZE,
-        UPLOAD_ERR_PARTIAL,
-        UPLOAD_ERR_NO_FILE,
-        UPLOAD_ERR_NO_TMP_DIR,
-        UPLOAD_ERR_CANT_WRITE,
-        UPLOAD_ERR_EXTENSION,
+    private const ERROR_MAP = [
+        UPLOAD_ERR_OK => 'UPLOAD_ERR_OK',
+        UPLOAD_ERR_INI_SIZE => 'UPLOAD_ERR_INI_SIZE',
+        UPLOAD_ERR_FORM_SIZE => 'UPLOAD_ERR_FORM_SIZE',
+        UPLOAD_ERR_PARTIAL => 'UPLOAD_ERR_PARTIAL',
+        UPLOAD_ERR_NO_FILE => 'UPLOAD_ERR_NO_FILE',
+        UPLOAD_ERR_NO_TMP_DIR => 'UPLOAD_ERR_NO_TMP_DIR',
+        UPLOAD_ERR_CANT_WRITE => 'UPLOAD_ERR_CANT_WRITE',
+        UPLOAD_ERR_EXTENSION => 'UPLOAD_ERR_EXTENSION',
     ];
 
     /**
@@ -104,7 +104,7 @@ private function setStreamOrFile($streamOrFile): void
      */
     private function setError(int $error): void
     {
-        if (false === in_array($error, UploadedFile::ERRORS, true)) {
+        if (!isset(UploadedFile::ERROR_MAP[$error])) {
             throw new InvalidArgumentException(
                 'Invalid error status for UploadedFile'
             );
@@ -137,7 +137,7 @@ public function isMoved(): bool
     private function validateActive(): void
     {
         if (false === $this->isOk()) {
-            throw new RuntimeException('Cannot retrieve stream due to upload error');
+            throw new RuntimeException(\sprintf('Cannot retrieve stream due to upload error (%s)', self::ERROR_MAP[$this->error]));
         }
 
         if ($this->isMoved()) {
diff --git a/guzzlehttp/psr7/src/Uri.php b/guzzlehttp/psr7/src/Uri.php
index 481dfca94..a7cdfb003 100644
--- a/guzzlehttp/psr7/src/Uri.php
+++ b/guzzlehttp/psr7/src/Uri.php
@@ -107,7 +107,7 @@ private static function parse(string $url)
     {
         // If IPv6
         $prefix = '';
-        if (preg_match('%^(.*://\[[0-9:a-f]+\])(.*?)$%', $url, $matches)) {
+        if (preg_match('%^(.*://\[[0-9:a-fA-F]+\])(.*?)$%', $url, $matches)) {
             /** @var array{0:string, 1:string, 2:string} $matches */
             $prefix = $matches[1];
             $url = $matches[2];
diff --git a/php-opencloud/openstack/src/Common/Auth/AuthHandler.php b/php-opencloud/openstack/src/Common/Auth/AuthHandler.php
index 71a58721c..4abf2b83e 100644
--- a/php-opencloud/openstack/src/Common/Auth/AuthHandler.php
+++ b/php-opencloud/openstack/src/Common/Auth/AuthHandler.php
@@ -25,7 +25,7 @@ class AuthHandler
     /** @var Token */
     private $token;
 
-    public function __construct(callable $nextHandler, callable $tokenGenerator, Token $token = null)
+    public function __construct(callable $nextHandler, callable $tokenGenerator, ?Token $token = null)
     {
         $this->nextHandler    = $nextHandler;
         $this->tokenGenerator = $tokenGenerator;
diff --git a/php-opencloud/openstack/src/Common/Error/Builder.php b/php-opencloud/openstack/src/Common/Error/Builder.php
index f2717aa1a..a9830309f 100644
--- a/php-opencloud/openstack/src/Common/Error/Builder.php
+++ b/php-opencloud/openstack/src/Common/Error/Builder.php
@@ -35,7 +35,7 @@ class Builder
      */
     private $client;
 
-    public function __construct(ClientInterface $client = null)
+    public function __construct(?ClientInterface $client = null)
     {
         $this->client = $client ?: new Client();
     }
@@ -164,7 +164,7 @@ private function getStatusCodeMessage(int $statusCode): string
      * @param mixed       $userValue    The incorrect value the user actually provided
      * @param string|null $furtherLink  a link to further information if necessary (optional)
      */
-    public function userInputError(string $expectedType, $userValue, string $furtherLink = null): UserInputError
+    public function userInputError(string $expectedType, $userValue, ?string $furtherLink = null): UserInputError
     {
         $message = $this->header('User Input Error');
 
diff --git a/php-opencloud/openstack/src/Common/HydratorStrategyTrait.php b/php-opencloud/openstack/src/Common/HydratorStrategyTrait.php
index 83d5719bc..43ddd946d 100644
--- a/php-opencloud/openstack/src/Common/HydratorStrategyTrait.php
+++ b/php-opencloud/openstack/src/Common/HydratorStrategyTrait.php
@@ -25,7 +25,7 @@ public function hydrate(array $data, array $aliases = [])
         }
     }
 
-    public function set(string $key, $property, array $data, callable $fn = null)
+    public function set(string $key, $property, array $data, ?callable $fn = null)
     {
         if (isset($data[$key]) && property_exists($this, $property)) {
             $value           = $fn ? call_user_func($fn, $data[$key]) : $data[$key];
diff --git a/php-opencloud/openstack/src/Common/JsonSchema/Schema.php b/php-opencloud/openstack/src/Common/JsonSchema/Schema.php
index 36396d5ee..d2ac5cdd7 100644
--- a/php-opencloud/openstack/src/Common/JsonSchema/Schema.php
+++ b/php-opencloud/openstack/src/Common/JsonSchema/Schema.php
@@ -14,7 +14,7 @@ class Schema
     /** @var Validator */
     private $validator;
 
-    public function __construct($body, Validator $validator = null)
+    public function __construct($body, ?Validator $validator = null)
     {
         $this->body      = (object) $body;
         $this->validator = $validator ?: new Validator();
diff --git a/php-opencloud/openstack/src/Common/Resource/Alias.php b/php-opencloud/openstack/src/Common/Resource/Alias.php
index ebd7a6bfd..53944bab1 100644
--- a/php-opencloud/openstack/src/Common/Resource/Alias.php
+++ b/php-opencloud/openstack/src/Common/Resource/Alias.php
@@ -26,7 +26,7 @@ class Alias
      * @param string|null $className    A class name for the property value
      * @param bool        $list         Whether value of the property should be treated as a list or not
      */
-    public function __construct(string $propertyName, string $className = null, bool $list = false)
+    public function __construct(string $propertyName, ?string $className = null, bool $list = false)
     {
         $this->isList       = $list;
         $this->propertyName = $propertyName;
diff --git a/php-opencloud/openstack/src/Common/Resource/Listable.php b/php-opencloud/openstack/src/Common/Resource/Listable.php
index a19499e3d..899e80fc2 100644
--- a/php-opencloud/openstack/src/Common/Resource/Listable.php
+++ b/php-opencloud/openstack/src/Common/Resource/Listable.php
@@ -18,11 +18,11 @@ interface Listable
      * of the marker will depend on the last element returned in the previous response. If a limit is
      * provided, the loop will continue up until that point.
      *
-     * @param array    $def      The operation definition
-     * @param array    $userVals The user values
-     * @param callable $mapFn    an optional callback that will be executed on every resource iteration
+     * @param array         $def      The operation definition
+     * @param array         $userVals The user values
+     * @param callable|null $mapFn    an optional callback that will be executed on every resource iteration
      *
      * @returns \Generator<mixed, static>
      */
-    public function enumerate(array $def, array $userVals = [], callable $mapFn = null);
+    public function enumerate(array $def, array $userVals = [], ?callable $mapFn = null);
 }
diff --git a/php-opencloud/openstack/src/Common/Resource/OperatorResource.php b/php-opencloud/openstack/src/Common/Resource/OperatorResource.php
index 894925986..ac940c762 100644
--- a/php-opencloud/openstack/src/Common/Resource/OperatorResource.php
+++ b/php-opencloud/openstack/src/Common/Resource/OperatorResource.php
@@ -69,7 +69,7 @@ private function getResourcesKey(): string
      *
      * @returns \Generator<mixed, static>
      */
-    public function enumerate(array $def, array $userVals = [], callable $mapFn = null): \Generator
+    public function enumerate(array $def, array $userVals = [], ?callable $mapFn = null): \Generator
     {
         $operation = $this->getOperation($def);
 
@@ -105,7 +105,7 @@ public function enumerate(array $def, array $userVals = [], callable $mapFn = nu
      *
      * @return array<self>
      */
-    public function extractMultipleInstances(ResponseInterface $response, string $key = null): array
+    public function extractMultipleInstances(ResponseInterface $response, ?string $key = null): array
     {
         $key           = $key ?: $this->getResourcesKey();
         $resourcesData = Utils::jsonDecode($response)[$key];
diff --git a/php-opencloud/openstack/src/Common/Service/Builder.php b/php-opencloud/openstack/src/Common/Service/Builder.php
index f63eefc18..a5dca9974 100644
--- a/php-opencloud/openstack/src/Common/Service/Builder.php
+++ b/php-opencloud/openstack/src/Common/Service/Builder.php
@@ -109,7 +109,7 @@ private function stockAuthHandler(array &$options): void
         }
     }
 
-    private function httpClient(string $baseUrl, HandlerStack $stack, string $serviceType = null, string $microVersion = null): ClientInterface
+    private function httpClient(string $baseUrl, HandlerStack $stack, ?string $serviceType = null, ?string $microVersion = null): ClientInterface
     {
         $clientOptions = [
             'base_uri' => Utils::normalizeUrl($baseUrl),
diff --git a/php-opencloud/openstack/src/Common/Transport/HandlerStack.php b/php-opencloud/openstack/src/Common/Transport/HandlerStack.php
index fd500be50..158b57b3c 100644
--- a/php-opencloud/openstack/src/Common/Transport/HandlerStack.php
+++ b/php-opencloud/openstack/src/Common/Transport/HandlerStack.php
@@ -10,7 +10,7 @@ class HandlerStack
     /**
      * @deprecated use \OpenStack\Common\Transport\HandlerStackFactory::createWithOptions instead
      */
-    public static function create(callable $handler = null): \GuzzleHttp\HandlerStack
+    public static function create(?callable $handler = null): \GuzzleHttp\HandlerStack
     {
         return HandlerStackFactory::create($handler);
     }
diff --git a/php-opencloud/openstack/src/Common/Transport/HandlerStackFactory.php b/php-opencloud/openstack/src/Common/Transport/HandlerStackFactory.php
index a2324d581..7afa03735 100644
--- a/php-opencloud/openstack/src/Common/Transport/HandlerStackFactory.php
+++ b/php-opencloud/openstack/src/Common/Transport/HandlerStackFactory.php
@@ -13,7 +13,7 @@ class HandlerStackFactory
     /**
      * @deprecated use \OpenStack\Common\Transport\HandlerStackFactory::createWithOptions instead
      */
-    public static function create(callable $handler = null): HandlerStack
+    public static function create(?callable $handler = null): HandlerStack
     {
         $stack = new HandlerStack($handler ?: Utils::chooseHandler());
         $stack->push(Middleware::httpErrors(), 'http_errors');
diff --git a/php-opencloud/openstack/src/Common/Transport/Middleware.php b/php-opencloud/openstack/src/Common/Transport/Middleware.php
index d11667ef4..c7eaed348 100644
--- a/php-opencloud/openstack/src/Common/Transport/Middleware.php
+++ b/php-opencloud/openstack/src/Common/Transport/Middleware.php
@@ -31,7 +31,7 @@ function (ResponseInterface $response) use ($request, $verbosity) {
         };
     }
 
-    public static function authHandler(callable $tokenGenerator, Token $token = null): callable
+    public static function authHandler(callable $tokenGenerator, ?Token $token = null): callable
     {
         return function (callable $handler) use ($tokenGenerator, $token) {
             return new AuthHandler($handler, $tokenGenerator, $token);
@@ -49,7 +49,7 @@ public static function history(array &$container): callable
     /**
      * @codeCoverageIgnore
      */
-    public static function retry(callable $decider, callable $delay = null): callable
+    public static function retry(callable $decider, ?callable $delay = null): callable
     {
         return GuzzleMiddleware::retry($decider, $delay);
     }
diff --git a/php-opencloud/openstack/src/Common/Transport/RequestSerializer.php b/php-opencloud/openstack/src/Common/Transport/RequestSerializer.php
index 533a11c5c..20d29e668 100644
--- a/php-opencloud/openstack/src/Common/Transport/RequestSerializer.php
+++ b/php-opencloud/openstack/src/Common/Transport/RequestSerializer.php
@@ -11,7 +11,7 @@ class RequestSerializer
 {
     private $jsonSerializer;
 
-    public function __construct(JsonSerializer $jsonSerializer = null)
+    public function __construct(?JsonSerializer $jsonSerializer = null)
     {
         $this->jsonSerializer = $jsonSerializer ?: new JsonSerializer();
     }
diff --git a/php-opencloud/openstack/src/Common/Transport/Utils.php b/php-opencloud/openstack/src/Common/Transport/Utils.php
index 6a52a81a2..52a4f3c91 100644
--- a/php-opencloud/openstack/src/Common/Transport/Utils.php
+++ b/php-opencloud/openstack/src/Common/Transport/Utils.php
@@ -45,7 +45,7 @@ public static function jsonDecode(ResponseInterface $response, bool $assoc = tru
      *
      * @return array
      */
-    public static function flattenJson($data, string $key = null)
+    public static function flattenJson($data, ?string $key = null)
     {
         return (!empty($data) && $key && isset($data[$key])) ? $data[$key] : $data;
     }
diff --git a/php-opencloud/openstack/src/Compute/v2/Service.php b/php-opencloud/openstack/src/Compute/v2/Service.php
index 3dc1fd4c8..968b22ebc 100644
--- a/php-opencloud/openstack/src/Compute/v2/Service.php
+++ b/php-opencloud/openstack/src/Compute/v2/Service.php
@@ -44,7 +44,7 @@ public function createServer(array $options): Server
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Server>
      */
-    public function listServers(bool $detailed = false, array $options = [], callable $mapFn = null): \Generator
+    public function listServers(bool $detailed = false, array $options = [], ?callable $mapFn = null): \Generator
     {
         $def = (true === $detailed) ? $this->api->getServersDetail() : $this->api->getServers();
 
@@ -72,13 +72,13 @@ public function getServer(array $options = []): Server
     /**
      * List flavors.
      *
-     * @param array    $options  {@see \OpenStack\Compute\v2\Api::getFlavors}
-     * @param callable $mapFn    a callable function that will be invoked on every iteration of the list
-     * @param bool     $detailed set to true to fetch flavors' details
+     * @param array         $options  {@see \OpenStack\Compute\v2\Api::getFlavors}
+     * @param callable|null $mapFn    a callable function that will be invoked on every iteration of the list
+     * @param bool          $detailed set to true to fetch flavors' details
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Flavor>
      */
-    public function listFlavors(array $options = [], callable $mapFn = null, bool $detailed = false): \Generator
+    public function listFlavors(array $options = [], ?callable $mapFn = null, bool $detailed = false): \Generator
     {
         $def = true === $detailed ? $this->api->getFlavorsDetail() : $this->api->getFlavors();
 
@@ -119,7 +119,7 @@ public function createFlavor(array $options = []): Flavor
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Image>
      */
-    public function listImages(array $options = [], callable $mapFn = null): \Generator
+    public function listImages(array $options = [], ?callable $mapFn = null): \Generator
     {
         return $this->model(Image::class)->enumerate($this->api->getImages(), $options, $mapFn);
     }
@@ -143,12 +143,12 @@ public function getImage(array $options = []): Image
     /**
      * List key pairs.
      *
-     * @param array    $options {@see \OpenStack\Compute\v2\Api::getKeyPairs}
-     * @param callable $mapFn   a callable function that will be invoked on every iteration of the list
+     * @param array         $options {@see \OpenStack\Compute\v2\Api::getKeyPairs}
+     * @param callable|null $mapFn   a callable function that will be invoked on every iteration of the list
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Keypair>
      */
-    public function listKeypairs(array $options = [], callable $mapFn = null): \Generator
+    public function listKeypairs(array $options = [], ?callable $mapFn = null): \Generator
     {
         return $this->model(Keypair::class)->enumerate($this->api->getKeypairs(), $options, $mapFn);
     }
@@ -197,14 +197,14 @@ public function getHypervisorStatistics(): HypervisorStatistic
     /**
      * List hypervisors.
      *
-     * @param bool     $detailed Determines whether detailed information will be returned. If FALSE is specified, only
-     *                           the ID, name and links attributes are returned, saving bandwidth.
-     * @param array    $options  {@see \OpenStack\Compute\v2\Api::getHypervisors}
-     * @param callable $mapFn    a callable function that will be invoked on every iteration of the list
+     * @param bool          $detailed Determines whether detailed information will be returned. If FALSE is specified, only
+     *                                the ID, name and links attributes are returned, saving bandwidth.
+     * @param array         $options  {@see \OpenStack\Compute\v2\Api::getHypervisors}
+     * @param callable|null $mapFn    a callable function that will be invoked on every iteration of the list
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Hypervisor>
      */
-    public function listHypervisors(bool $detailed = false, array $options = [], callable $mapFn = null): \Generator
+    public function listHypervisors(bool $detailed = false, array $options = [], ?callable $mapFn = null): \Generator
     {
         $def = (true === $detailed) ? $this->api->getHypervisorsDetail() : $this->api->getHypervisors();
 
@@ -224,12 +224,12 @@ public function getHypervisor(array $options = []): Hypervisor
     /**
      * List hosts.
      *
-     * @param array    $options {@see \OpenStack\Compute\v2\Api::getHosts}
-     * @param callable $mapFn   a callable function that will be invoked on every iteration of the list
+     * @param array         $options {@see \OpenStack\Compute\v2\Api::getHosts}
+     * @param callable|null $mapFn   a callable function that will be invoked on every iteration of the list
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\Host>
      */
-    public function listHosts(array $options = [], callable $mapFn = null): \Generator
+    public function listHosts(array $options = [], ?callable $mapFn = null): \Generator
     {
         return $this->model(Host::class)->enumerate($this->api->getHosts(), $options, $mapFn);
     }
@@ -255,12 +255,12 @@ public function getHost(array $options = []): Host
     /**
      * List AZs.
      *
-     * @param array    $options {@see \OpenStack\Compute\v2\Api::getAvailabilityZones}
-     * @param callable $mapFn   a callable function that will be invoked on every iteration of the list
+     * @param array         $options {@see \OpenStack\Compute\v2\Api::getAvailabilityZones}
+     * @param callable|null $mapFn   a callable function that will be invoked on every iteration of the list
      *
      * @return \Generator<mixed, \OpenStack\Compute\v2\Models\AvailabilityZone>
      */
-    public function listAvailabilityZones(array $options = [], callable $mapFn = null): \Generator
+    public function listAvailabilityZones(array $options = [], ?callable $mapFn = null): \Generator
     {
         return $this->model(AvailabilityZone::class)->enumerate($this->api->getAvailabilityZones(), $options, $mapFn);
     }
diff --git a/php-opencloud/openstack/src/Images/v2/Models/Schema.php b/php-opencloud/openstack/src/Images/v2/Models/Schema.php
index 44532fab2..10373e6fa 100644
--- a/php-opencloud/openstack/src/Images/v2/Models/Schema.php
+++ b/php-opencloud/openstack/src/Images/v2/Models/Schema.php
@@ -8,7 +8,7 @@
 
 class Schema extends \OpenStack\Common\JsonSchema\Schema
 {
-    public function __construct($data, Validator $validator = null)
+    public function __construct($data, ?Validator $validator = null)
     {
         if (!isset($data->type)) {
             $data->type = 'object';
diff --git a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Api.php b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Api.php
index faab09ac6..c7b3ec8ec 100644
--- a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Api.php
+++ b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Api.php
@@ -26,6 +26,7 @@ public function postFloatingIps(): array
             'jsonKey' => 'floatingip',
             'params'  => [
                 'tenantId'          => $this->params->tenantIdJson(),
+                'description'       => $this->notRequired($this->params->descriptionJson()),
                 'floatingNetworkId' => $this->params->floatingNetworkIdJson(),
                 'fixedIpAddress'    => $this->params->fixedIpAddressJson(),
                 'floatingIpAddress' => $this->params->floatingIpAddressJson(),
@@ -53,6 +54,7 @@ public function putFloatingIp(): array
             'jsonKey' => 'floatingip',
             'params'  => [
                 'id'                => $this->params->idPath(),
+                'description'       => $this->notRequired($this->params->descriptionJson()),
                 'floatingNetworkId' => $this->notRequired($this->params->floatingNetworkIdJson()),
                 'fixedIpAddress'    => $this->params->fixedIpAddressJson(),
                 'floatingIpAddress' => $this->params->floatingIpAddressJson(),
diff --git a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ApiTrait.php b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ApiTrait.php
index 5d7c757ac..362f9bd7b 100644
--- a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ApiTrait.php
+++ b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ApiTrait.php
@@ -20,7 +20,9 @@ public function postFloatingIps(): array
             'jsonKey' => 'floatingip',
             'params'  => [
                 'tenantId'          => $this->params->tenantIdJson(),
+                'description'       => $this->notRequired($this->params->descriptionJson()),
                 'floatingNetworkId' => $this->params->floatingNetworkIdJson(),
+                'subnetId'          => $this->notRequired($this->params->subnetIdJson()),
                 'fixedIpAddress'    => $this->params->fixedIpAddressJson(),
                 'floatingIpAddress' => $this->params->floatingIpAddressJson(),
                 'portId'            => $this->params->portIdJson(),
@@ -47,6 +49,7 @@ public function putFloatingIp(): array
             'jsonKey' => 'floatingip',
             'params'  => [
                 'id'                => $this->params->idPath(),
+                'description'       => $this->notRequired($this->params->descriptionJson()),
                 'floatingNetworkId' => $this->notRequired($this->params->floatingNetworkIdJson()),
                 'fixedIpAddress'    => $this->params->fixedIpAddressJson(),
                 'floatingIpAddress' => $this->params->floatingIpAddressJson(),
diff --git a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Models/FloatingIp.php b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Models/FloatingIp.php
index 048b942b2..2a0ecb927 100644
--- a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Models/FloatingIp.php
+++ b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Models/FloatingIp.php
@@ -21,6 +21,9 @@ class FloatingIp extends OperatorResource implements Listable, Creatable, Retrie
     /** @var string */
     public $status;
 
+    /** @var string */
+    public $description;
+
     /** @var string */
     public $floatingNetworkId;
 
diff --git a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Params.php b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Params.php
index d502f61cd..ef6d2787e 100644
--- a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Params.php
+++ b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/Params.php
@@ -9,6 +9,15 @@
  */
 class Params extends \OpenStack\Networking\v2\Params
 {
+    public function descriptionJson(): array
+    {
+        return [
+            'type'        => self::STRING_TYPE,
+            'description' => 'The description of the floating IP.',
+            'sentAs'      => 'description',
+        ];
+    }
+
     public function tenantIdJson(): array
     {
         return [
diff --git a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ParamsTrait.php b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ParamsTrait.php
index c201a82e7..274656554 100644
--- a/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ParamsTrait.php
+++ b/php-opencloud/openstack/src/Networking/v2/Extensions/Layer3/ParamsTrait.php
@@ -9,6 +9,15 @@
  */
 trait ParamsTrait
 {
+    public function descriptionJson(): array
+    {
+        return [
+            'type'        => self::STRING_TYPE,
+            'description' => 'The description of the floating IP.',
+            'sentAs'      => 'description',
+        ];
+    }
+
     public function floatingNetworkIdJson(): array
     {
         return [
@@ -37,6 +46,15 @@ public function floatingIpAddressJson(): array
         ];
     }
 
+    public function subnetIdJson(): array
+    {
+        return [
+            'type'        => self::STRING_TYPE,
+            'description' => 'The UUID of the subnet of the floating Network associated with the floating IP.',
+            'sentAs'      => 'subnet',
+        ];
+    }
+
     public function portIdJson(): array
     {
         return [
diff --git a/php-opencloud/openstack/src/ObjectStore/v1/Models/Container.php b/php-opencloud/openstack/src/ObjectStore/v1/Models/Container.php
index fa9350268..74f2e4662 100644
--- a/php-opencloud/openstack/src/ObjectStore/v1/Models/Container.php
+++ b/php-opencloud/openstack/src/ObjectStore/v1/Models/Container.php
@@ -57,7 +57,7 @@ public function populateFromResponse(ResponseInterface $response): self
      *
      * @return \Generator<mixed, \OpenStack\ObjectStore\v1\Models\StorageObject>
      */
-    public function listObjects(array $options = [], callable $mapFn = null): \Generator
+    public function listObjects(array $options = [], ?callable $mapFn = null): \Generator
     {
         $options = array_merge($options, ['name' => $this->name, 'format' => 'json']);
 
diff --git a/php-opencloud/openstack/src/ObjectStore/v1/Service.php b/php-opencloud/openstack/src/ObjectStore/v1/Service.php
index d4bdbae78..e4686c3b6 100644
--- a/php-opencloud/openstack/src/ObjectStore/v1/Service.php
+++ b/php-opencloud/openstack/src/ObjectStore/v1/Service.php
@@ -30,7 +30,7 @@ public function getAccount(): Account
      *
      * @return \Generator<mixed, \OpenStack\ObjectStore\v1\Models\Container>
      */
-    public function listContainers(array $options = [], callable $mapFn = null): \Generator
+    public function listContainers(array $options = [], ?callable $mapFn = null): \Generator
     {
         $options = array_merge($options, ['format' => 'json']);
 
@@ -41,9 +41,9 @@ public function listContainers(array $options = [], callable $mapFn = null): \Ge
      * Retrieves a Container object and populates its name according to the value provided. Please note that the
      * remote API is not contacted.
      *
-     * @param string $name The unique name of the container
+     * @param string|null $name The unique name of the container
      */
-    public function getContainer(string $name = null): Container
+    public function getContainer(?string $name = null): Container
     {
         return $this->model(Container::class, ['name' => $name]);
     }
diff --git a/php-opencloud/openstack/src/OpenStack.php b/php-opencloud/openstack/src/OpenStack.php
index 4eecd642a..254e66df3 100644
--- a/php-opencloud/openstack/src/OpenStack.php
+++ b/php-opencloud/openstack/src/OpenStack.php
@@ -33,7 +33,7 @@ class OpenStack
      *         ['requestOptions']   = (array)             Guzzle Http request options    [OPTIONAL]
      *         ['cachedToken']      = (array)             Cached token credential        [OPTIONAL]
      */
-    public function __construct(array $options = [], Builder $builder = null)
+    public function __construct(array $options = [], ?Builder $builder = null)
     {
         $defaults = ['errorVerbosity' => 2];
         $options  = array_merge($defaults, $options);