Update CHANGELOG [skip ci]

zetachang · zetachang · commit 01b3e3c87c5e · 2016-12-25T21:40:15.000+08:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -26,6 +26,7 @@ Whitespace conventions:
 
 ### Deprecated
 
+- Current ref callback behavior is deprecated. Require `"react/ref_callback"` to get the updated behavior. (#188)
 - `React.render_to_string` & `React.render_to_static_markup` is deprecated, use `React::Server.render_to_string` & `React::Server.render_to_static_markup` instead. (#186)
 - `react/react-source` is deprecated, use `react/react-source-browser` or `react/react-source-server` instead. For most usecase, `react/react-source-browser` is sufficient. If you are using the built-in server side rendering feature, the actual `ReactDOMServer` is already provided by the `react-rails` gem. Therefore, unless you are building a custom server side rendering mechanism, it's not suggested to use `react/react-source-server` in browser code. (#186)
 
