The new Azure updates went live around the end of November 2024 and has also enabled RSS feeds again.

https://azure.microsoft.com/en-us/updates
The rest of the article is outdated, showing the situation between June and November 2024 without proper update streams.
Microsoft is currently undergoing maintenance and is not providing RSS feeds for Azure updates. The last regular updates was on June 3rd, 2024. For me, this is a major inconvenience.
Azure Updates website is undergoing maintenance. During this time, you may notice limited functionality affecting RSS feeds and search features. We apologize for any inconvenience this may cause. Thank you for your patience and understanding.
Critical updates and retirements will also be communicated via emails and service health alerts.
https://azure.microsoft.com/en-us/updates (2024-06-21)
The alternative fallback is here: https://techcommunity.microsoft.com/t5/azure-updates/bg-p/AzureUpdates
But this is no longer easily machine readable.

This once more points out the importance of the service health alerts which should be monitored for every resource.
I still hope that this service limitation will end soon, but for now, I haven’t seen any plans for when the service will return to regular operation.

azurecharts.com Latest Azure Updates
Despite months passing, Microsoft has yet to restore the update RSS feed that I use to stay current with Azure technologies. Fortunately, we have Azure charts websites that are stepping in to help.
https://azurecharts.com/updates
They offer both a website and an RSS feed with the updates. This is extremely valuable.

My proposal for everyone who is waiting is to switch to the following URL: azurecharts.com updates RSS