Does it support notes, attachments, etc.? Last time I checked it didn’t seem to, which makes it unviable if you use those features in your password manager.

It does support secure notes but you have to use macs keychain access app.

Sorry, I meant notes associated with each site/password. Sometimes you want to record not only a site’s username and password, but also some extra data, so having a notes field comes in handy.

Yes it does, I keep my recovery codes there.

This is what I do. As well as SSH keys.