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So I'm programming on a MacBook from mid-2010, and I have the most recent update (10.13.6) but when I try to install Xcode it says I need to update again, but it's not listed as an update in the AppStore.

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Recent versions of Xcode require macOS 10.14.4 or higher to run. Since you have 10.13.6, you can't run that version of Xcode. With 10.13.6 the most recent version of Xcode you can use is Xcode 10.1.

Also, Macs made in 2010 cannot run macOS 10.14.4, which is why that version of macOS is not available to you as an update. Your Mac can't be updated past macOS 10.13.x.

You can do one of the following:

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    Will a virtual machine work as a sub-optimal workaround? – mgarciaisaia Jan 8 at 12:40
  • I don't know. You'd have to check and see what version of macOS can run on the virtual machine. If you can get at least 10.14, Xcode should work, slowly. It might only work for simulator builds and not for installing to devices. – Tom Harrington Jan 8 at 21:20
  • For a virtual machine to work, it is important that the emulated hardware looks like a newer Mac so the MacOS installer will run. Without having researched it, I would say it sounds very unlikely. – Thorbjørn Ravn Andersen Jan 9 at 7:38
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I ran into this issue lately too. I own an early 2011 MBP and was not able to update to Mojave either and therefore I could not install the latest Xcode.

While it isn't supported officially, there's still a way to update to Mojave and run the latest Xcode. dosdude1 has created a patcher that allows you to install Mojave on your (officially) unsupported Mac, you can find it at http://dosdude1.com/mojave/ - they also have a patcher for Catalina

Please note

  • This is probably a violation of Apples ToS
  • If you want to release your application in the App Store you might run into troubles (unlikely, albeit, still conceivable)
  • You'll have to trust dosdude1, the patches are not open source, as far as I can tell
  • The machine is not guaranteed to work as it did before
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