diff --git a/CHANGELOG-2.1.md b/CHANGELOG-2.1.md
index 1e751e3405..41efa05e07 100644
--- a/CHANGELOG-2.1.md
+++ b/CHANGELOG-2.1.md
@@ -394,35 +394,6 @@ To get the diff between two versions, go to https://github.com/symfony/symfony/c
  * `ObjectIdentity::fromDomainObject`, `UserSecurityIdentity::fromAccount` and `UserSecurityIdentity::fromToken` now return
    correct identities for proxies objects (e.g. Doctrine proxies)
 
-### Serializer
-
- * [BC BREAK] changed `GetSetMethodNormalizer`'s key names from all lowercased to camelCased (e.g. `mypropertyvalue` to `myPropertyValue`)
- * [BC BREAK] convert the `item` XML tag to an array
-
-    ``` xml
-    <?xml version="1.0"?>
-    <response>
-        <item><title><![CDATA[title1]]></title></item><item><title><![CDATA[title2]]></title></item>
-    </response>
-    ```
-
-    Before:
-
-        Array()
-
-    After:
-
-        Array(
-            [item] => Array(
-                [0] => Array(
-                    [title] => title1
-                )
-                [1] => Array(
-                    [title] => title2
-                )
-            )
-        )
-
 ### Validator
 
  * added support for `ctype_*` assertions in `TypeValidator`
diff --git a/src/Symfony/Component/Serializer/CHANGELOG.md b/src/Symfony/Component/Serializer/CHANGELOG.md
new file mode 100644
index 0000000000..de46533563
--- /dev/null
+++ b/src/Symfony/Component/Serializer/CHANGELOG.md
@@ -0,0 +1,44 @@
+CHANGELOG
+=========
+
+2.1.0
+-----
+
+ * added DecoderInterface::supportsDecoding(),
+   EncoderInterface::supportsEncoding()
+ * removed NormalizableInterface::denormalize(),
+   NormalizerInterface::denormalize(),
+   NormalizerInterface::supportsDenormalization()
+ * removed normalize() denormalize() encode() decode() supportsSerialization()
+   supportsDeserialization() supportsEncoding() supportsDecoding()
+   getEncoder() from SerializerInterface
+ * Serializer now implements NormalizerInterface, DenormalizerInterface,
+   EncoderInterface, DecoderInterface in addition to SerializerInterface
+ * added DenormalizableInterface and DenormalizerInterface
+ * [BC BREAK] changed `GetSetMethodNormalizer`'s key names from all lowercased
+   to camelCased (e.g. `mypropertyvalue` to `myPropertyValue`)
+ * [BC BREAK] convert the `item` XML tag to an array
+
+    ``` xml
+    <?xml version="1.0"?>
+    <response>
+        <item><title><![CDATA[title1]]></title></item><item><title><![CDATA[title2]]></title></item>
+    </response>
+    ```
+
+    Before:
+
+        Array()
+
+    After:
+
+        Array(
+            [item] => Array(
+                [0] => Array(
+                    [title] => title1
+                )
+                [1] => Array(
+                    [title] => title2
+                )
+            )
+        )