diff --git a/docs/topics/release-notes.md b/docs/topics/release-notes.md
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--- a/docs/topics/release-notes.md
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@@ -6,6 +6,8 @@
 
 ## Master
 
+* Added `SerializerMethodField`
+* Serializer performance improvements.
 * Added `obtain_token_view` to get tokens when using `TokenAuthentication`
 * Bugfix: Django 1.5 configurable user support for `TokenAuthentication`