Apple Music has activated its lossless-quality streaming and spatial audio features, which were previously revealed. You can now stream certain tracks in standard lossless/CD-quality audio and high-resolution lossless audio if you have the latest iOS, iPadOS, and macOS upgrades installed. During the WWDC keynote, Apple stated that both capabilities would be available today, but it took several hours following the event for people to notice them in the app.
If the rollout hasn’t reached you yet, you may still be without. Apple’s upgrade is a server-side upgrade. Lossless audio files take up a lot more storage space when downloaded and consume more data when streamed. You can find all of the technical information and answers to frequently asked questions here. Unless you change your selection to lossless in the Music app part of iOS settings, the regular AAC streaming will continue to be the default.
For the first time, you can listen to spatial audio on Apple Music today. According to Apple, Dolby Atmos-enabled mixes are now available on millions of tracks, delivering “real multidimensional sound and clarity.” However, there will be a far lesser collection of spatial audio songs than lossless audio songs, with Apple promising “thousands” of spatial audio files on day one and more to come.