XF2.2 allows per-alert feature flag to indicate if an alert should be marked as "read" when the alerts are viewed. What this means is thread starter alerts stay "unread" when you click the bell, but get marked as read when you view the alert.
The separation between read/viewed is honestly really clunky (how it interacts with expiry is particularly nasty). This add-on keeps both updated, but just updates them to the same values.
The unread/new alert stays around for about 15 minutes, this hasn't changed from the XF2.1 versionThere's something definitely not right about this add-on. I disabled the add-on and reenabled it to check something. Now it's showing an alert, 3 rows down, as unread/new alert with the star beside it even though I have read it. It's also still showing with the star and highlight even though I've visited the post again.
This kicks in when you've got the same post reacted to multiple times.Also not sure what the resummarize button is meant to do but it's doing nothing for me.