diff --git a/src/Symfony/Contracts/HttpClient/Exception/ClientExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/ClientExceptionInterface.php
index 5b5fa5084e..22d2b456a6 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/ClientExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/ClientExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * When a 4xx response is returned.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface ClientExceptionInterface extends HttpExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/DecodingExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/DecodingExceptionInterface.php
index 709db2189e..971a7a29b3 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/DecodingExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/DecodingExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * When a content-type cannot be decoded to the expected representation.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface DecodingExceptionInterface extends ExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/ExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/ExceptionInterface.php
index 6d59715f70..e553b47a1d 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/ExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/ExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * The base interface for all exceptions in the contract.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface ExceptionInterface extends \Throwable
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/HttpExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/HttpExceptionInterface.php
index 0e9f39f6ee..17865ed367 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/HttpExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/HttpExceptionInterface.php
@@ -17,8 +17,6 @@ use Symfony\Contracts\HttpClient\ResponseInterface;
  * Base interface for HTTP-related exceptions.
  *
  * @author Anton Chernikov <anton_ch1989@mail.ru>
- *
- * @experimental in 1.1
  */
 interface HttpExceptionInterface extends ExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/RedirectionExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/RedirectionExceptionInterface.php
index 8cdd3e70d7..edd9b8a9bb 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/RedirectionExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/RedirectionExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * When a 3xx response is returned and the "max_redirects" option has been reached.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface RedirectionExceptionInterface extends HttpExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/ServerExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/ServerExceptionInterface.php
index f994ba2ddc..9bfe1354b5 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/ServerExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/ServerExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * When a 5xx response is returned.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface ServerExceptionInterface extends HttpExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Exception/TransportExceptionInterface.php b/src/Symfony/Contracts/HttpClient/Exception/TransportExceptionInterface.php
index 1cdc30a2fc..0c8d131a05 100644
--- a/src/Symfony/Contracts/HttpClient/Exception/TransportExceptionInterface.php
+++ b/src/Symfony/Contracts/HttpClient/Exception/TransportExceptionInterface.php
@@ -15,8 +15,6 @@ namespace Symfony\Contracts\HttpClient\Exception;
  * When any error happens at the transport level.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
  */
 interface TransportExceptionInterface extends ExceptionInterface
 {
diff --git a/src/Symfony/Contracts/HttpClient/Test/HttpClientTestCase.php b/src/Symfony/Contracts/HttpClient/Test/HttpClientTestCase.php
index 8ef46a9a90..88c7ab4bb1 100644
--- a/src/Symfony/Contracts/HttpClient/Test/HttpClientTestCase.php
+++ b/src/Symfony/Contracts/HttpClient/Test/HttpClientTestCase.php
@@ -19,8 +19,6 @@ use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
  * A reference test suite for HttpClientInterface implementations.
- *
- * @experimental in 1.1
  */
 abstract class HttpClientTestCase extends TestCase
 {
diff --git a/src/Symfony/Contracts/HttpClient/Test/TestHttpServer.php b/src/Symfony/Contracts/HttpClient/Test/TestHttpServer.php
index 0adb1a52a3..16e9dad299 100644
--- a/src/Symfony/Contracts/HttpClient/Test/TestHttpServer.php
+++ b/src/Symfony/Contracts/HttpClient/Test/TestHttpServer.php
@@ -14,9 +14,6 @@ namespace Symfony\Contracts\HttpClient\Test;
 use Symfony\Component\Process\PhpExecutableFinder;
 use Symfony\Component\Process\Process;
 
-/**
- * @experimental in 1.1
- */
 class TestHttpServer
 {
     private static $started;