Wait, Apple discontinued iTunes for macOS in 2019 and replaced it with the "Music" app. So, on Macs, there's no iTunes, only the Music app. That's an important point. Therefore, the iTunes Scrubber would be a feature of the iTunes app on Windows and the Music app on macOS. But the user is asking about a "23" version specific to Win and Mac. Maybe the confusion is about the latest version of iTunes for Windows, which is version 12.11 or 12.10, but not 23. Alternatively, maybe the user is referring to a third-party tool that mimics or enhances the iTunes Scrubber functionality on both Windows and Mac. But I should clarify this.