diff -pruN 1.26.0-1/CHANGELOG.md 1.27.0-1/CHANGELOG.md
--- 1.26.0-1/CHANGELOG.md	2025-05-12 09:35:01.000000000 +0000
+++ 1.27.0-1/CHANGELOG.md	2025-08-11 10:03:27.000000000 +0000
@@ -2,6 +2,16 @@
 
 ## NOT RELEASED
 
+## 1.27.0
+
+### Added
+
+- Support for Symfony 8
+
+### Changed
+
+- `ResultMockFactory` does not call `ReflectionProperty::setAccessible()` on PHP 8.1+
+
 ## 1.26.0
 
 ### Added
diff -pruN 1.26.0-1/composer.json 1.27.0-1/composer.json
--- 1.26.0-1/composer.json	2025-05-12 09:35:01.000000000 +0000
+++ 1.27.0-1/composer.json	2025-08-11 10:03:27.000000000 +0000
@@ -18,7 +18,7 @@
         "psr/cache": "^1.0 || ^2.0 || ^3.0",
         "psr/log": "^1.0 || ^2.0 || ^3.0",
         "symfony/deprecation-contracts": "^2.1 || ^3.0",
-        "symfony/http-client": "^4.4.16 || ^5.1.7 || ^6.0 || ^7.0",
+        "symfony/http-client": "^4.4.16 || ^5.1.7 || ^6.0 || ^7.0 || ^8.0",
         "symfony/http-client-contracts": "^1.1.8 || ^2.0 || ^3.0",
         "symfony/service-contracts": "^1.0 || ^2.0 || ^3.0"
     },
@@ -38,7 +38,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.26-dev"
+            "dev-master": "1.27-dev"
         }
     }
 }
diff -pruN 1.26.0-1/debian/changelog 1.27.0-1/debian/changelog
--- 1.26.0-1/debian/changelog	2025-05-12 16:42:07.000000000 +0000
+++ 1.27.0-1/debian/changelog	2025-08-12 09:57:45.000000000 +0000
@@ -1,3 +1,18 @@
+php-async-aws-core (1.27.0-1) unstable; urgency=medium
+
+  * Upload to unstable now that trixie has been released
+
+  [ Nicolas Grekas ]
+  * Allow Symfony 8 (#1929)
+
+  [ Christian Flothmann ]
+  * do not call setAccessible() on PHP 8.1+ (#1931)
+
+  [ Jérémy Derussé ]
+  * prepare next release (#1932)
+
+ -- David Prévot <taffit@debian.org>  Tue, 12 Aug 2025 11:57:45 +0200
+
 php-async-aws-core (1.26.0-1) experimental; urgency=medium
 
   * Upload to experimental during the freeze
diff -pruN 1.26.0-1/src/Test/ResultMockFactory.php 1.27.0-1/src/Test/ResultMockFactory.php
--- 1.26.0-1/src/Test/ResultMockFactory.php	2025-05-12 09:35:01.000000000 +0000
+++ 1.27.0-1/src/Test/ResultMockFactory.php	2025-08-11 10:03:27.000000000 +0000
@@ -84,7 +84,9 @@ class ResultMockFactory
         // Make sure the Result is initialized
         $reflectionClass = new \ReflectionClass(Result::class);
         $initializedProperty = $reflectionClass->getProperty('initialized');
-        $initializedProperty->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $initializedProperty->setAccessible(true);
+        }
 
         /** @psalm-var \ReflectionClass<T> $reflectionClass */
         $reflectionClass = new \ReflectionClass($class);
@@ -116,7 +118,9 @@ class ResultMockFactory
                     $property = $reflectionClass->getProperty($propertyName);
                 }
             }
-            $property->setAccessible(true);
+            if (\PHP_VERSION_ID < 80100) {
+                $property->setAccessible(true);
+            }
             $property->setValue($object, $propertyValue);
         }
 
@@ -151,10 +155,14 @@ class ResultMockFactory
 
         $reflectionClass = new \ReflectionClass(Waiter::class);
         $propertyResponse = $reflectionClass->getProperty('response');
-        $propertyResponse->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $propertyResponse->setAccessible(true);
+        }
 
         $propertyState = $reflectionClass->getProperty('finalState');
-        $propertyState->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $propertyState->setAccessible(true);
+        }
 
         /** @psalm-var \ReflectionClass<T> $reflectionClass */
         $reflectionClass = new \ReflectionClass($class);
@@ -217,7 +225,9 @@ class ResultMockFactory
             }
 
             if (null !== $propertyValue) {
-                $property->setAccessible(true);
+                if (\PHP_VERSION_ID < 80100) {
+                    $property->setAccessible(true);
+                }
                 $property->setValue($object, $propertyValue);
             }
         }
@@ -260,14 +270,18 @@ class ResultMockFactory
         if (class_exists($awsClientClass)) {
             $awsClientMock = (new \ReflectionClass($awsClientClass))->newInstanceWithoutConstructor();
             $property = $reflectionClass->getProperty('awsClient');
-            $property->setAccessible(true);
+            if (\PHP_VERSION_ID < 80100) {
+                $property->setAccessible(true);
+            }
             $property->setValue($object, $awsClientMock);
         }
 
         if (class_exists($inputClass)) {
             $inputMock = (new \ReflectionClass($inputClass))->newInstanceWithoutConstructor();
             $property = $reflectionClass->getProperty('input');
-            $property->setAccessible(true);
+            if (\PHP_VERSION_ID < 80100) {
+                $property->setAccessible(true);
+            }
             $property->setValue($object, $inputMock);
         }
     }
@@ -278,15 +292,21 @@ class ResultMockFactory
         $response = $reflectionClass->newInstanceWithoutConstructor();
 
         $property = $reflectionClass->getProperty('resolveResult');
-        $property->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $property->setAccessible(true);
+        }
         $property->setValue($response, true);
 
         $property = $reflectionClass->getProperty('bodyDownloaded');
-        $property->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $property->setAccessible(true);
+        }
         $property->setValue($response, true);
 
         $property = $reflectionClass->getProperty('httpResponse');
-        $property->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $property->setAccessible(true);
+        }
         $property->setValue($response, new SimpleMockedResponse());
 
         return $response;