I installed OS X 10.10 Yosemite build 14A238x on Thunderbolt SSD / MacBook Air. A few days ago, Developer Preview 2 was released by Apple with the build number 14A261i and it should be updated via the Mac AppStore. But it is not showing up for me.

Is there a hidden cache I can purge or any other way to persuade my Mac to obtain that update?

  • I've been experiencing the same problem. When I try to view the original Yosemite, I get an error that the product is not available on the Canadian store. I would assume, from this information, that either the new version is not available for Non-US users, or that the updates have a slight delay between the release of it for US users, and the release of it for other stores. If this is the case, then the update should become available soon.
    – ATLief
    Jun 20, 2014 at 4:29

3 Answers 3


I wanted to add that I was experiencing this same issue.

I tried reinstalling, enabling debug mode within app store and clearing the cookies/kickstarting update options, etc. to no avail.

As a last ditch effort, I created a new user on the system. After entering my apple id information when logging in for the first time on the new account, I opened up the app store again and then finally saw the 1.0 update (developer preview 2) available.

  • This didn't work for me.
    – Snowman
    Sep 6, 2014 at 18:36

Depending on the connection you have to wait a specific threshold of minutes. After that the Mac AppStore displays the new update. And if you have an old OS X 10.9 server with enabled caching service on your network: Switch the network or temporarily disable that caching service.


I had trouble using updates on the Mac App store on my first install. I reinstalled Yosemite (redownloaded via App Store) and just ran the installer again. When it was done, all the updates showed up..

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