Itunes 12.6.3 ^new^ 〈OFFICIAL〉

Apple removed the standalone .dmg for 12.6.3 from public links, but you can find it archived on developer forums. The safest method is using (last version for Business/Education deployments), then manually downgrading the AppStore framework. Alternatively, check Internet Archive for the original High Sierra-compatible .dmg .

However, for a specific segment of Windows users and older Mac owners, one specific version of the software remains the pinnacle of functionality: . itunes 12.6.3