It’s not in beta just yet. Getting close! While NetNewsWire 5.0 is feature-complete as of May 25, 2019, it has known bugs —and, surely, plenty of unknown bugs.
It supports [RSS](http://cyber.harvard.edu/rss/rss.html), [Atom](https://tools.ietf.org/html/rfc4287), [JSON Feed](https://jsonfeed.org/), and [RSS-in-JSON](https://github.com/scripting/Scripting-News/blob/master/rss-in-json/README.md) formats.
[Join the Slack group](https://join.slack.com/t/netnewswire/shared_invite/enQtNjM4MDA1MjQzMDkzLTNlNjBhOWVhYzdhYjA4ZWFhMzQ1MTUxYjU0NTE5ZGY0YzYwZWJhNjYwNTNmNTg2NjIwYWY4YzhlYzk5NmU3ZTc) to talk with other NetNewsWire users —and to help out, if you’d like to, by testing, coding, writing, providing feedback, or just helping us think things through. Everybody is welcome and encouraged to join.