Issue with notifications not being sent.

I currently have "Installed version: 3.9.18967" if I update to "Latest available version: 3.9.19775" no notifications are being sent out. This is a major issue for me. I have gone through this issue and we had it fixed via this post http://stackideas.com/forums/notification-emails-not-being-sent-out. I even tried to apply the fix to the new version and it does nothing. Any assistance with this issue would be most appreciated.