I see it, but I couldn’t update through the App Store. Thanks for the link I was able to download it.

This update won’t be applicable until ML 10.8.2 is available.
It will download but not install until ML is updated.

Both updates (Aperture 3.4 and iPhoto 9.4) showed up on my App Store updates before OS X 10.8.2 … which the latter is available …

Odd thing, John, I was already at 10.8.2 when I checked for the Aperture update.

No update showing for me I had to go to http://support.apple.com/downloads/#aperture to get the update.

The only thing appearing for me was the iPhoto update and Xcode. Anyone with a retina display and MS office you may want to know that Microsoft have released an update to support the retina display.

Updated to 10.8.2 and uploaded Aperture 3.4
restarted Mac Pro 8core and Aperture libraries report inconsistencies
working through this.

After applying update to 3.4, Aperture crashed upon opening. I’d already updated to Mountain Lion 10.8.2. There was no update via Software Update, so I went to Apple’s website to download the update. After a few attempts at trying to open Aperture 3.4, I threw away its preferences, which allowed me to reopen Aperture successfully. I was able to see my photo library, and went to set up Preferences. But it crashed on me when I was in Aperture Preferences trying to setup my Facebook and Flickr connections. (Both were not appearing in my list on the left of main Aperture window after this update.) Crashing while in Preferences trying to set up Facebook and Flickr connections has consistently crashed on me with a few attempts to use 3.4 of Aperture.

Aperture 3.3.1 was working for me beautifully with no problems at all with Facebook or Flickr connections.

Ivor