Hi Alexandru,
Many thanks for your information.
It looks the activity stream extension is one that meets my requirement.
However, I am total new to xwiki and I couldn’t find the page or url the get the notification of activity stream.
I have tried to add {{activity /}} in a new page by guidiance of activity stream extension and get all updates. But It makes me feelingl like building the wheel again.
Is there an existing page the hold all current wiki updates for RSS?
thank in advance.