[acidburnNSA]

I'll note that you can subscribe to these in your RSS/atom feed reader (I use a self-hosted FreshRSS augmented by RSSHub).

https://www.chromestatus.com/features.xml

https://webkit.org/feed/atom/

For Firefox there's no feed but RSSHub can make one for you

https://docs.rsshub.app/en/program-update.html#firefox