Main branch MAC/OSX minimum version 10.15

to be able to compile successfully using Xcode 12.1 on OSX 10.15
Unless you set MACOSX_DEPLOYMENT_TARGET + CMAKE_OSX_DEPLOYMENT_TARGET
to 10.15 version inside CMakeLists.txt file , you won't be able to compile / build on Mac osx catalina :
if you let the version to 10.9 , you get compilation errors on some sources mainly using the paths libraries which are not 'officially' available before 10.15

This may imply that the minimum version to run MuseScore on mac will be 10.15 mojave for the main branch or do I miss something here ??

Thanks for any feedback or remarks