Apple has released updates of most of its software. IOS 9.2 was released with improvements in the View Controller Safari and new languages for Siri (among other things); TVOS 9.1 was launched with the main news that we can now look at Apple Music using Siri and the remote application to support the fourth generation Apple TV.
This new version allows you to view the works, composers and performers of classical music as you browse in the catalog of Apple Music. In addition, the update includes stability improvements and performance improvements.
In addition, as with almost all application updates or operating systems, this update also includes improvements in stability and performance of the application, the latter being important for being the main complaint reported by users, especially users of Spotify.
This new version comes a month and a half after iTunes 12.3.1, an update that also brought significant improvements beyond bug fixes and improvements in performance and reliability of the application. I think Apple would have to add more options to iTunes and Apple Music in general.
iTunes 12.3.2 is available on the Mac App Store.