macOS Catalina Causes Issues for DJs Who Used iTunes With XML File Support

macOS Catalina eliminates the iTunes app in favor of new Music, TV, and Podcasts apps, but the lack of iTunes will impact DJs who relied on the software, reports The Verge.

Along with nixing iTunes, Apple is removing support for the method many DJ app developers had been using to access XML playlist files that let users access their iTunes music libraries.

macos catalina apple music
DJs use XML file support to sort tracks into playlists and use iTunes' "Share iTunes Library XML with other applications" to transfer data between apps. The new Music app, though, uses a new, more modern library format that isn't compatible with XML.

Developers still have access to frameworks for accessing Music on the Mac, but XML file support is no longer available in macOS Catalina and developers need to update their apps to take advantage of the new methods that are compatible with music libraries on the Mac. Many DJ app developers are in the process of doing so, but customers using an XML app that is not supported should continue to use macOS Mojave until developer updates are implemented.

We spoke with Michael Simmons of Algoriddim, the developer behind the djay Pro apps, and he provided us with more insight into the issue, pointing to a previous report outlining how Apple launched an official SDK for delivering programmatic access to users' music libraries with the launch of iTunes 11 a number of years ago. Apps like djay Pro that previously transitioned to the SDK will have no problems continuing to integrate with Music libraries in macOS Catalina.

App developers who have continued to rely on the earlier undocumented XML integration and have not updated in time will find that their users will be unable to access their Music libraries after upgrading to Catalina. Companies like Serato and Native Instruments have warned their users not to upgrade to macOS Catalina yet, although Native Instruments has a public beta of its Traktor Pro app available that will support Catalina.

Tag: iTunes
Related Forum: Mac Apps

Popular Stories

apple oct 2024 mac tease

Apple Expected to Announce These Two to Three Products 'This Week'

Sunday October 12, 2025 7:05 am PDT by
Apple plans to announce new products "this week," according to Bloomberg's Mark Gurman. Apple's "Mac Your Calendars" teaser last October In his Power On newsletter today, Gurman said the products set to be updated this week include the iPad Pro, Vision Pro, and "likely" the base 14-inch MacBook Pro, with all three likely to receive a spec bump with Apple's next-generation M5 chip. Gurman...
Apple TV Plus Feature 2 Magenta and Blue

Apple TV+ Being Rebranded as Apple TV

Monday October 13, 2025 8:25 am PDT by
Buried in its announcement about "F1: The Movie" making its streaming debut on December 12, Apple has also announced that Apple TV+ is being rebranded as simply Apple TV. A single line near the end of the press release states "Apple TV+ is now simply Apple TV, with a vibrant new identity," though Apple's website has yet to be updated with any changes, so we're unsure on the details of the...
M5 MacBook Pro

Apple Announces New 14-Inch MacBook Pro With M5 Chip

Wednesday October 15, 2025 6:07 am PDT by
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models. In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB. Like...
iOS 26 Feature

Apple Preparing iOS 26.0.2 Update for iPhones

Saturday October 11, 2025 6:59 pm PDT by
Apple's software engineers are internally testing iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will likely be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released within the next few weeks. Last month, Apple released iOS...
Apple iPad Pro hero M5

Apple Debuts New iPad Pro With M5 Chip, Faster Charging, and More

Wednesday October 15, 2025 6:16 am PDT by
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips. The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
joz macbook tease

Apple Teases Upcoming M5 MacBook Pro Launch: 'Something Powerful is Coming'

Tuesday October 14, 2025 11:59 am PDT by
Apple marketing chief Greg Joswiak today teased the launch of an upcoming product, saying "something powerful is coming" on social media. Subscribe to the MacRumors YouTube channel for more videos. A short animation accompanying Joswiak's teaser reveals a brief glimpse of a MacBook Pro along with the words "coming soon." The shape of the MacBook Pro is a V, which is the Roman numeral...
airpods max 2024 colors

AirPods Max 2: Everything We Know So Far

Tuesday October 14, 2025 8:43 am PDT by
Apple's AirPods Max have now been available for almost five years, so what do we know about the second-generation version? According to Apple supply chain analyst Ming-Chi Kuo, the new AirPods Max will be lighter than the current ones, but exactly how much is as yet known. The current AirPods Max weigh 0.85 pounds (386.2 grams), excluding the charging case, making it one of the heavier...
iPhone 17 Pro Colors

iPhone 18 Pro Already Rumored to Have These 6 New Features

Saturday October 11, 2025 10:10 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still nearly a year away, a handful of new features and changes have already been rumored for the devices. Below, we have recapped some of the early iPhone 18 Pro rumors so far. Smaller Dynamic Island The standard iPhone 18, iPhone 18 Pro, and iPhone 18 Pro Max will be equipped with a slightly smaller Dynamic Island, but the devices will...
macbook pro blue

Apple's M5 MacBook Pro Imminent: What to Expect

Tuesday October 14, 2025 4:35 pm PDT by
Apple is going to launch a new version of the MacBook Pro as soon as tomorrow, so we thought we'd go over what to expect from Apple's upcoming Mac. M5 Chip The MacBook Pro will be one of the first new devices to use the next-generation M5 chip, which will replace the M4 chip. The M5 is built on TSMC's more advanced 3-nanometer process, and it will bring speed and efficiency improvements. ...
All AirPods 2025

Apple Reportedly Working on New AirPods Pro, AirPods 5, and H3 Chip

Sunday October 12, 2025 9:24 am PDT by
After releasing AirPods Pro 3 last month, Apple is already working on the next AirPods Pro, according to Bloomberg's Mark Gurman. It is unclear if the new AirPods Pro would be branded as AirPods Pro 4, or if they would be considered an updated version of AirPods Pro 3. Gurman did not take a position, opting to describe them as a "new version" of the "high-end in-ear buds." AirPods Pro 2...

Top Rated Comments

Ryan0751 Avatar
79 months ago
As a DJ, we saw this coming for quite a while with all of the announcements.

For those unaware, nobody is DJ'ing WITH iTunes. Rather, many DJ's used iTunes to organize their music. Bloated as it got, iTunes still has some powerful music management tools, with it's smart playlists and such. Plus, you could take your new music, playlists, etc. and sync them up to your iPhone/iPod for offline listening.

The DJ software vendors recognized this, and pretty much all of them built in support to read the library.xml file directly into their software.

So if you used Traktor, Serato, Rekordbox, Virtual DJ, etc., you could keep your library in iTunes, and it would just show up in the DJ software. Rather powerful, and if you decided to switch software, your tracks would move over easily (though all of the custom beat gridding, cue points and loops, etc. are still software specific).

From what I gather, the new Music App does have an API, it'll be interesting to see if the DJ vendors adopt it.
Score: 40 Votes (Like | Disagree)
hlfway2anywhere Avatar
79 months ago

Thumbs down for those DJ who uses iTunes for playing tracks... that's not real DJ

Oh no! This is tragic. Won't someone please think of the iTunes DJs who use XML (all 3 of them)?
this has nothing to do with using itunes to DJ. it's regarding giving your DJ software, like Serato DJ, access to your iTunes library, where you may or may not maintain your music library.
Score: 27 Votes (Like | Disagree)
Icaras Avatar
79 months ago

Thumbs down for those DJ who uses iTunes for playing tracks... that's not real DJ
LOL, we don’t use iTunes to DJ. We use it as our organizational library because it excels in that. The XML file allows your iTunes library to be shared to whatever DJ app you use. As a DJ, this makes me nervous to upgrade to Catalina right now. :(

Because the flip side is, is that you can still manually generate the XML file from the Music app, so there is still hope yet.
Score: 15 Votes (Like | Disagree)
tkermit Avatar
79 months ago

Apple removing features can be annoying at times, but they certainly are under no obligation to support something that they never documented as a feature, but rather simply used as an underlying storage medium in an older app. That is an inherent risk of using undocumented or private APIs.
I don't know about "never documented as a feature"...


Attachment Image
Score: 14 Votes (Like | Disagree)
Jetson Avatar
79 months ago
There is always a group here who applaud whatever Apple does and criticize those who are adversely affected by changes, as though those people don't matter.

Come on, how difficult would it have been to continue to support XML for those people invested in using that feature of iTunes?
Score: 11 Votes (Like | Disagree)
Mimiron Avatar
79 months ago
Most people here do not understand the issue at hand. You don't DJ using iTunes. The app was merely used to create a playlist and generate an XML File that allows for sharing a playlist with third-party software like Traktor or Serato.
Score: 11 Votes (Like | Disagree)