thing is, on my one there was NO notification. So it was only because I happened to review all the flight departure/arrival times that I noticed one flight had moved FORWARD by almost 30 minutes, thereby giving me a misconnect.

The DL agent said "how was this ever allowed to be ticketed like this". Then I explained about the sked change. She was as confused as me as she said there were no "IROPS flags" in the booking.

So yeah, even if it doesn't show a sked change, keep an eye on the flight times carefully!