The majority of current apps that support macOS 10.12 Sierra require an update for capability, and a few mainstream Mac apps still haven’t been updated and have known issues including:
- Microsoft Office 2016: Apps closing or crashing unexpectedly
- Adobe Photoshop CC 2015.5: Crashes when printing, zoom tool conflicts with Siri, redraw issues when dragging scrollbars, preview in browser not working
- Adobe Lightroom CC 2015.7/Lightroom 6.7: Crashes when importing images from iOS devices
If the developer doesn’t claim compatibility with Sierra, then it’s pretty much use-at-your-own-risk when it comes to older Mac apps. Some apps may work fine, others may have bugs, and a few just won’t launch at all. It’s amazing how much a free Mac operating system upgrade ends up costing companies that haven’t upgraded their apps in a while.
Here’s a few older Mac apps I’ve run across that I can confirm will not work with Sierra at all:
- Extensis Suitcase Fusion 6 and older (upgrade to Suitcase Fusion 7 or Teamsync)
- Parallels Desktop 9 and older (upgrade to Parallels 12)
- Quicken Essentials (upgrade to Quicken 2016)
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