I did update it and it worked. But I had to download the new installer.
No, you only had to download and install the Stand-Alone Addon Manager, which is what the Live Update message you got a few days ago told you to.
Maybe with all these new updates coming out FSDT can send an email to people about the update
We have a Live Update notification system. Yet you must have chosen to ignore one suggestion to update. I'm not sure how sending emails, other than being way more intrusive, would make any difference, if you ignore update notifications.
So we don't have to come on here and look stupid.
There's also "Check Live Update" option in the Couatl menu. It's used so you can check if there are updates, in case you might have missed a notification or chose to ignore it.