I have discovered the following behavior:
- If Major versions are turned on than users in Visitors group (Read) will not receive any alerts.
- If Major and Minor versions are turned on than users in Members group (Contribute) will not receive any alerts.
MOSS (SharePoint) version: 18.104.22.16804 = SP2 + April 2009 Cumulative update
- Alerts in SharePoint (Troubleshooting MOSS/WSS) http://blogs.technet.com/b/steve_chen/archive/2009/11/20/alerts-in-sharepoint-troubleshooting-moss-wss.aspx