diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00d934f9..fbdecfd4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.3.0](https://github.com/sonata-project/form-extensions/compare/1.2.0...1.3.0) - 2020-04-10
+### Added
+- Added `Sonata\Form\Serializer\BaseSerializerHandler`
+- Added `Sonata\Form\Serializer\BaseSerializerHandlerInterface`
+
 ## [1.2.0](https://github.com/sonata-project/form-extensions/compare/1.1.2...1.2.0) - 2020-03-21
 ### Added
 - Added support for `twig/twig:^3.0`
diff --git a/src/Type/BasePickerType.php b/src/Type/BasePickerType.php
index 5933d8aa..3f7766b3 100644
--- a/src/Type/BasePickerType.php
+++ b/src/Type/BasePickerType.php
@@ -65,7 +65,7 @@ public function __construct(MomentFormatConverter $formatConverter, $translator,
             }
 
             @trigger_error(sprintf(
-                'Not passing the request stack as argument 3 to %s() is deprecated since sonata-project/form-extensions 1.x and will be mandatory in 2.0.',
+                'Not passing the request stack as argument 3 to %s() is deprecated since sonata-project/form-extensions 1.2 and will be mandatory in 2.0.',
                 __METHOD__
             ), E_USER_DEPRECATED);
         }
diff --git a/src/Type/EqualType.php b/src/Type/EqualType.php
index e5759147..0c6d8fa8 100644
--- a/src/Type/EqualType.php
+++ b/src/Type/EqualType.php
@@ -18,7 +18,7 @@
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 @trigger_error(
-    'The '.__NAMESPACE__.'\EqualType class is deprecated since version 1.x and will be removed in 2.0.'
+    'The '.__NAMESPACE__.'\EqualType class is deprecated since version 1.2 and will be removed in 2.0.'
     .' Use Sonata\AdminBundle\Form\Type\Operator\EqualOperatorType instead.',
     E_USER_DEPRECATED
 );
@@ -26,7 +26,7 @@
 /**
  * NEXT_MAJOR: remove this class.
  *
- * @deprecated since sonata-project/form-extensions 1.x, to be removed with 2.0
+ * @deprecated since sonata-project/form-extensions 1.2, to be removed with 2.0
  */
 final class EqualType extends AbstractType
 {