Another Year, Another Xcode/macOS Warning

Don't install macOS Tahoe on a machine that needs to be able to run prior versions of Xcode! Another Year, Another Xcode/macOS Warning Don't install macOS Tahoe on a machine that needs to be able to run prior versions of Xcode! Michael Long   ∙   June 29, 2025   ∙   3 min read   ∙   View on Medium Much like I did last year, I installed macOS Tahoe in order to explore the AI-based generative code capabilities of Xcode 26, only to once again find that earlier versions of Xcode are now prevented from running. Clicking on the Xcode-1630 icon in the toolbar will end up presenting the following dialog. Image by author Nor can you open the application using the "Open" option from the context menu. Frustrating, but I expected as much going in, since this was an issue with Xcode 16/Sequoia and Xcode 14/Sonoma as well. Workarounds There's a potential workaround where you can use Terminal and/or a Shortcut to… Continue reading This is a member-only story and can only be read on Medium. Sent to sikubaycom.s3cr3tz@blogger.com by Michael Long on Medium Unsubscribe from this newsletter or unsubscribe from all newsletters from Medium Manage your email settings 3500 South DuPont Highway, Suite IQ-101, Dover, DE 19901 Careers·Help Center·Privacy Policy·Terms of service