Regular updates and information on Activity Hub data, views and more are delivered to subscribed to CoP email lists.
To subscribe, follow a click on the CoP's Google Group link then click "Join groupbelow."
Cognos Developers - join this group to get notified of Cognos upgrades and outages
https://groups.google.com/u/1/a/ucsd.edu/g/CognosDevelopers-g
Tableau Developers - join this group to get notified of Tableau upgrades and outages
https://groups.google.com/u/1/a/ucsd.edu/g/tableaudevelopers-g
...