Notifications for the following can be signed up for on support.broadcom.com:
Critical Alerts
Product Advisories
Release Announcements
Security Advisories
Legal Notices
This KB will detail how to sign up for these notifications.
1) Log in to support.broadcom.com
2) Ensure you have the Enterprise Software Icon
3) Click the Bell icon
4) Click the Gear Icon in the Notifications pop up
5) In the Product Updates Notifications section, you can toggle which notifications you want to receive for which products: