As I said, it appears that the code to allow events to be logged (which is how notifications and emails are now triggered) appears to have been added to BlynkLib.py but I don’t know enough about uPython to know how to use this in a sketch.
Blynk IoT doesn’t support the legacy method of triggering notifications and emails, which is which is one of the reasons why you need to use version 1.0.0 of the library.
Maybe if you read this, you’ll understand more about how notifications work in Blynk IoT…
Pete.