FeedBurner getting an update

[bill]

After years of neglect, Google will be upgrading FeedBurner

Upcoming changes to FeedBurner in July 2021 [support.google.com]

Starting in July, we are transitioning FeedBurner onto a more stable, modern infrastructure. This will keep the product up and running for all users, but it also means that we will be turning down most non-core feed management features, including email subscriptions, at that time.

But they'll be killing off email subscriptions, Browser Friendly, and Password Protector features. I suspect this won't make many people using those features happy.