In September 2024, Apple released its new operating system, macOS Sequoia (macOS 15).


It usually takes third party software developers some time to bring their applications up to date in order to be fully compatible with new operating systems. We strongly recommend that you always check with the developers of any critical applications you rely on to be certain they are compatible before upgrading to a new OS. 


As well, the development teams behind the notation programs Sibelius, Finale, Dorico, and Musescore are also advising caution and patience before updating to Sequoia before they've had a chance to update their applications. See below for direct link to these developers.


It is extremely important to verify that each program you rely on will be compatible with the new OS before you upgrade. See point #2 below for some quick links to commonly used programs crucial to many VDL users.


If you are a Mac user, here are some good general tips:


1. Turn off "auto updates" on your mac (System Settings>General>Software Update).



2. Keep track of the Sequoia compatibility status with the VDL-related software you rely on.