As of the latest official statement, there are no plans to bring Sonar to macOS. The recommended alternative is Cakewalk Next.
This article explores the history behind this digital folklore, breaks down why native version downloads do not exist, and provides proven, actionable workarounds for Mac users who want the Cakewalk workflow. 1. The Origin of the "Mac OS X" Rumor: The 2016 Prototype cakewalk+sonar+mac+os+x+download+exclusive