Add Shodow DOM

source/_posts/2017-03-25-todo-volumio-workday.markdown

@@ -36,7 +36,8 @@ The new format of the changelog which was introduced with 0.40 will provide a li
 - The [Emby mediaplayer][emby] platform was changed to avoid name clashes ([#6664]).
 - In a lot of places were the power and energy units update. This change mostly affects the `switch` platforms ([#6212]).
 - If set to `auto` then the [MQTT][mqtt] implementation will use the bundled certificates automatically ([#6707]).
-- Autodiscovery of [Android IP Webcam][android] was removed ([#6528])
+- Autodiscovery of [Android IP Webcam][android] was removed ([#6528]).
+- The frontend is now using [Shadow DOM][shadow] and this could break your custom panels ([#228](https://github.com/home-assistant/home-assistant-polymer/issues/228)).
 
 ## If you need help...
 ...don't hesitate to use our very active [forums][forum] or join us for a little [chat][gitter]. The release notes have comments enabled but it's preferred if you use the former communication channels. Thanks.
@@ -342,6 +343,7 @@ Experiencing issues introduced by this release? Please report them in our [issue
 [volumio]: https://home-assistant.io//components/media_player.volumio/
 [workday]: https://home-assistant.io/components/binary_sensor.workday/
 [android]: https://home-assistant.io/components/android_ip_webcam/
+[shadow]: (https://www.w3.org/TR/shadow-dom/)
 
 [forum]: https://community.home-assistant.io/
 [gitter]: https://gitter.im/home-assistant/home-assistant