I just upgraded to GF 1.6.2 and it looks like email notifications upon form submission are no longer working.
Up until I upgraded, notifications were working fine and we rely on these for our business. I just checked my WebMail through DreamHost and the notification email definitely was not sent (emails sent are always visible here).
Here is a link to the form:
I tried a test upload and the files are getting uploaded and the submission success page loads but still no notifications.