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

top stories 2025 12 20

Top Stories: iOS 26.3 Beta, Major Apple Leaks, and More

Saturday December 20, 2025 6:00 am PST by
You'd think things would be slowing down heading into the holidays, but this week saw a whirlwind of Apple leaks and rumors while Apple started its next cycle of betas following last week's release of iOS 26.2 and related updates. This week also saw the release of a new Apple Music integration with ChatGPT, so read on below for all the details on this week's biggest stories! Top Stories i...
maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Features Leaked in New Report, Including Under-Screen Face ID

Tuesday December 16, 2025 8:44 am PST by
Next year's iPhone 18 Pro and iPhone 18 Pro Max will be equipped with under-screen Face ID, and the front camera will be moved to the top-left corner of the screen, according to a new report from The Information's Wayne Ma and Qianer Liu. As a result of these changes, the report said the iPhone 18 Pro models will not have a pill-shaped Dynamic Island cutout at the top of the screen....
ios 18 security update

Don't Want to Upgrade to iOS 26? Here's How to Stay on iOS 18 [Update: Now Unavailable]

Friday December 19, 2025 10:37 am PST by
Since the beginning of December, Apple has been pushing iPhone users who opted to stay on iOS 18 to install iOS 26 instead. Apple started by making the iOS 18 upgrades less visible, and has now transitioned to making new iOS 18 updates unavailable on any device capable of running iOS 26. If you have an iPhone 11 or later, Apple is no longer offering new versions of iOS 18, even though there...
iPhone Chips

Apple Clings to Samsung as RAM Prices Soar

Monday December 22, 2025 6:17 am PST by
Apple is significantly increasing its reliance on Samsung for iPhone memory as component prices surge, according to The Korea Economic Daily. Apple is said to be expanding the share of iPhone memory it sources from Samsung due to rapidly rising memory prices. The shift is expected to result in Samsung supplying roughly 60% to 70% of the low-power DRAM used in the iPhone 17, compared with a...
apple beta 26 lineup

Apple's 2026 and 2027 Product Roadmap: Foldable iPhone, iPhone 18 Pro, M5 Macs, and More

Tuesday December 16, 2025 4:42 pm PST by
There has been a whirlwind of rumors over the last few days, sourced from leaked internal software designed for the iPhone and the Mac, and news sites like The Information. Below, we have a quick recap of everything we've heard this week, which serves as a guide to Apple's product plans in 2026 and beyond. We've organized the info by likely release date, though there are some products that...
generic tracking prompt orange

Apple Hit With Supersized Fine in Italy Over an iPhone Privacy Feature

Monday December 22, 2025 7:47 am PST by
Italy's Competition Authority (AGCM) has imposed a €98.6 million ($116 million) fine on Apple over its App Tracking Transparency feature. Since the release of iOS 14.5 in April 2021, Apple has required apps to ask for permission before tracking a user's activity across other apps and websites for personalized advertising, as part of a feature named App Tracking Transparency. If a user...

Top Rated Comments

Ryan0751 Avatar
81 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
81 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
81 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
81 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
81 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
81 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)