Horos crashes with MacOs Tahoe

[Simone Zironi]

Hi,

I recently upgraded my MacBook Air M1 2020 to MacOs Tahoe 26.0.

If I launch Horos, the following error message appears:

"This application requires macOS 10.11 or higher. Please upgrade your operating system."

Please someone help me, I need Horos for my work.

Thanks.

Simone

[Simone Zironi]

It worked.

Thanks

[Centro de Imagem Médico-Veterinária Montenegro]

What did you do for it to work?

Thank you

[Leonardo Martinelli Preto]

Can you share with us the solution? Thanks

[Simone Zironi]

I installed che newew version, 4.01 arm64, something like that.

Simone Zironi

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[Tufail Patankar]

hi

what did u do?? not working for me

[Samantha Winters]

If you are having trouble with Horos (the free open source medical image viewer), my suggestion is to return to the download page, scroll down, and follow the troubleshooting instructions. Others have had success by reinstalling either the latest version or the one for the Apple Silicon Processors. Here is also an article that walks you through which version to choose for the type of mac you have. I hope this helps. 

[Aditya V Achir]

I did install OsiroX 14.2, it’s compatible with macOS 26 Tahoe. https://www.osirix-viewer.com

[Tufail Patankar]

Thanks

Good idea 

Regards,

Tufail Patankar

Sent from my iPhone

On 18 Sep 2025, at 13:32, Aditya V Achir <achir...@gmail.com> wrote:

I did install OsiroX 14.2, it’s compatible with macOS 26 Tahoe. https://www.osirix-viewer.com

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[Davide Johan Bottini]

from the horos homepage just download the  Horos 4.0.1 for Apple Silicon
version  , this works with MacOs Tahoe