Pour one out for your high school mix tapes: Apple announced Monday at its annual Worldwide Developers Conference (WWDC) that it's shutting down iTunes, its 18-year-old digital media software. In its place, Mac users will have three individual, dedicated apps for music, podcasts and TV, similar to the current iPhone setup.

The transition will take place when the macOS Catalina, the latest version of Apple's Mac operating system, debuts in the fall. While the news initially alarmed users, you can rest easy: Apple confirmed to CNBC Make It that your iTunes content isn't going to just disappear into the digital ether.

"Users will have access to their entire music library, whether they downloaded the songs, purchased them or ripped them from a CD," reads a press release.

The company confirmed that when Mac users update their software, music currently in your library will transfer to the Apple Music app and TV and movie purchases will migrate to the Apple TV app. Mac users will be able to access the iTunes Music Store within the Music app, and buy movies and TV shows in the TV app. Windows users will see no change in their iTunes experience, and iTunes Store gift cards are still valid.