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Part of Mac apps failed to launch due to expiring developer certificates

by removeos_admin 0 Comments

During the last week, some users have reported part of Mac apps failed to launch. The reason is that Apple changed the verification of the purchases and downloads that are not from Mac App Store.

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A few users who download apps from the developers’ sites all reported immediate crashes on launch. Developers of the apps soon apologized and explained the issue was down to the apps’ code signing certificates reaching their expiration date.

Apple issues developer signing certificates to assure users that an app they have downloaded outside of the Mac App Store is legitimate, and this hasn’t been modified since it’s last signed. In the past, the expiration of a code signing certificate won’t influence already shipped software, however, that changed last year, when Apple started requiring apps to carry a provisioning profile.

A provisioning profile tells macOS that the app has been checked by Apple against an online data base and is allowed to perform certain system actions or entitlements. But the profile is also signed using the developer’s code signing certificate, so when the certificate expires, the provisioning profile becomes invalid.

Over the weekend victims of expired provisioning profiles included users of 1Password for Mac how had bought the app from the developer’s site. AgileBits told on Sunday that affected users need to manually update to the latest version (6.5.5), noting that those who downloaded 1Password from the Mac App Store were unaffected.

The immediate solution for developers with potentially affected apps is to renew their code signing certificates before expiration.

Office for Mac update: Touch Bar support added

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In October last year Apple has announced that Office for Mac will support Touch Bar. And a few days ago Microsoft has released an update of Office for Mac – the highly anticipated Touch Bar support has been added. Since then users who have the 2016 MacBook Pro can enjoy the features of Touch Bar in Word, Excel and PowerPoint.

Touch Bar will provide features including text formatting adjustment like bold, italic, underline and colors.

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Microsoft also mentioned that while editing documents in full screen, users will find the Touch Bar very practical – the screen displays the document content, and Touch Bar displays various buttons. They will also release a “Focus Mode” for Word with better performance.

In PowerPoint, Touch Bar can help with the image elements, quick demos and text formatting.

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In Excel, users can use the common formula like summation on Touch Bar.

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Outlook will add email management buttons as well as the shortcuts of Skype call, video, desktop sharing.

Last week Microsoft announced Office Insider, aka Office for Mac beta version has supported Touch Bar, and now the official version finally benefits.

How to change iTunes backup location on Mac?

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If you think your iPhone backup takes too much space on your Mac, you may consider changing its location – moving it to your mobile HDD.

For Mac users, the iPhone backup may take much space. To solve this problem, a user has shared a method that successfully changed the iTunes backup location on his Mac devices.

Steps are as follows:

Generally, the default iTunes backup location is: /Library/Application Support/MobileSync/Backup, we need find and delete the backup folder. Press and hold the Option key to access “Library – Application Support – MobileSync – Backup.”

Create a “MobileSync” folder in the mobile HDD you choose, then open it and create a “Backup” folder.

Open the Terminal, execute the following command:
In -s /Volumes/(Name of your mobile HDD)/MobileSync/Backup ~/Library/Application\Support/MobileSync/Backup

4. Close the Terminal, open iTunes to backup your iPhone, and you will find the backup files in the new folder you just created.