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After the update of a MAC to macOS Sequoia Composer/Musician 4 show the message "Not Certified for this Operating System". What to do?

The version of Composer/Musician 4 and Wine are probably not up to the latest update.

macOS Sequoia requires at least Wine-10.0 and Composer/Musician 4.0.3

Please verify
- the version of Composer/Musician through Help/About Notation Composer/Musician. Composer/Musician probably shows a previous version
- the Wine version by opening the app Applications/Utilities/WineHQ_Config, tab About. Wine needs to be at least Wine-10.0

If your MAC is not on Wine-10.0 and Composer/Musician 4.0.3 you need to

(1) Upgrade Wine
See https://www.notation.com/MAC.php . Walk through the installation guide how to install Wine on macOS Sequoia. Install Wine-X (X=higher equal 10.0)
(un-installation of the previous Wine version is NOT required)

(2) Uninstall the previous Composer/Musician 4. See the MAC installation guide ( https://www.notation.com/MAC.php )
section "A1. Uninstalling the software manually"

(3) Download the latest update of Composer/Musician 4 through the Upgrade Assistent at https://www.notation.com/UpgradeOrder.php

(4) Install the update as described in MAC installation guide ( https://www.notation.com/MAC.php )
section "5 Installing Notation Software (Composer, Musician or Player)"