I just came across the issue that I wanted to change the properties of a DS component registered service so a "change" event is fired using https://docs.osgi.org/specification/osgi.core/8.0.0/framework.api.html#org.osgi.framework.Constants.SERVICE_CHANGECOUNT but currently it is not easily possible because there is not access to the underlying properties as they are managed by SCR.

I would therefore propose to have a ComponentContext#changed() method that behaves like this:

1. If the component is not registered as a service it is simply increments the change counter
2. If the component is registered as a service the change counter is incremented and its current service properties are update to reflect that change