I'd vote batch variation. The first time I had it was on draft at Big Tree Inn in Geneseo, NY when I was stuck there for work many, many moons ago. Might have been one of the first times it was sent out in kegs. I don't remember how many of them I had over the many weeks I was there, but I do know I didn't find out there were Apricots in it until a few years later. At the time I thought it was just an estery IPA made for the spring (hence the "Apri" part).