Below are the steps to check for updates for any third-party applications that you’ve downloaded via the App Store along with the default macOS apps and operating system.
When installing the update for El capitan it got stuck at installing in app store. It has said 'Installing - less then a minute' in several hours.
Can I somehow restart or redo the install/update?
1 Answer
You mean you are still in App Store; you haven't actually launched the Install OS X El Capitan file yet [or it hasn't auto-launched]?
If the installer isn't yet running, you're safe to cancel it.
My App Store download errored at the last second & when I clicked the Update button again it suddenly realised everything was in fact fine.
Check if you have the installer app in your Applications folder. If you do, then it actually downloaded OK & you ought to be able to double-click it to continue.
As always on a major update, make sure your backup is up to date; & as a double safety-net, remove or disconnect your Time Machine drive until you are happy all went well with the update.
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protected by Community♦Dec 25 '15 at 13:20
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Within my app, how can I make it check if there is an update available in the Mac App Store, and tell the user about this?
As an example, Sparrow does this.
Brad Larson♦2 Answers
Charcoal Design has an open source component that does that: iVersion.But it requires you to add a file in your server for your application to read.Whenever you update the version, just change the information in your server, and iVersion will show the user that a new version is available.
You could also scrape Apple's servers to read the version of your app, but there is chance that your app may be rejected for doing that.
Basically, Sparrow does not need to ask the App Store. It can just compare its bundle string to the newest version on their website.
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