It would have to be at 10.10.2 for there to be a combo, I think. The App Store seemed to have some trouble installing though and took 2 attempts and 2 reboots to complete. Strange.

There's never a Combo update for a x.x.1 release. Only when it gets to the x.x.2 phase.

oh.
my bad.
anyway, there's the download link :)

This is one of those questions you ask to see who's paying attention :)

JP... yeah, that's EXACTLY what I was doing.
yeah...

Interesting how this update is supposed to fix some App Store update issues, meanwhile trying to update to 10.10.1 the update was not so mysteriously not downloading correctly and/or showing correctly as downloaded in the App Store. d'oh…

Yea, that must have been it. Much better to patch the App Store with a separate update as Apple has done in the past…not sure why they strayed from that this time.