MacOS Tahoe 26.4/26.4.1 Compatibility Notice


Modified on: 2026-04-17 11:03:50 +0100

At this time, we are investigating compatibility concerns that may affect the stability and performance of the MediaSeal software when used with Apple MacOS Tahoe 26.4/26.4.1. To avoid any disruption to your workflows or business operations, we strongly recommend that you delay applying these MacOS updates on production systems.  Once we have confirmed full compatibility and completed testing, we will issue an updated advisory with revised guidance on upgrading.

In the meantime, we recommend that you:

  • Continue using your current supported version of MacOS and avoid upgrading any critical machines to Apple MacOS Tahoe 26.4/26.4.1.
  • Consult with your internal IT team before making any changes to operating systems on devices running our software.
  • Contact our support team if you have already upgraded and are experiencing any issues, so that we can assist you with appropriate workarounds.

We appreciate your understanding and cooperation while we work to resolve these interim compatibility issues. Our priority is to ensure a stable and reliable experience for all clients, and we will provide further updates as soon as they become available.


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