Originally Posted by
weatherguy
A more recent decision be AC (may have been on an earlier post) is to automatically upgrade the shorthaul if available, and keep you waitlisted on longer haul connect. So, you get the YYC-YVR upgrade, with no need to pull certificate until or if you get confirmed on YVR-HKG leg. Check-in was not aware of this, but gate agent upgraded me back on a short haul, given Air Canada's recent policy change.
That's interesting.
I think I'll wait for confirmation from a reliable inside source, or a consensus based on experience of several posters before updating the OP.
Gate agents have also been known simply to be nice to people, after all.