(Activity Tracker) : Is there advance notice of IP range changes?

[testrashmi]

We have a ticket CS3044428 raised by customer: as shown below:

Hello,

The access source range of WebHooks emitted from Activity Tracker is as follows, but if the IP range changes, how will the user be notified?

https://cloud.ibm.com/docs/activity-tracker?topic=activity-tracker-cidr&locale=en

Will there be advance notice of IP range changes as part of IBM Cloud's periodic announcements as we may not be able to receive webhooks in post-notification notifications?

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Please advise how do we notify the customer???