Roon Server not starting up: Update renders older Macs, QNAP, Synology, and High-End Servers unusable

Because it’s not an ordinary update. With the switch to .NET 10, Roon is fundamentally changing its technical basis. Many existing operating systems no longer meet the new requirements. For numerous users, this means that their previously stable setup will be rendered unusable immediately after the update. The reason is new minimum operating system requirements; the software manufacturer Roonlabs names “glibc 2.27 and OpenSSL 1.1.1” as minimum interfaces for Linux servers, for example. These have been common since about 2019 but were often only integrated into the respective current OS. The age of the hardware is not a criterion.

All devices running an older operating system that has not yet integrated the interfaces/libraries. In particular, all versions of QNAP models running QTS are affected, as are older Macs—which are popular as Roon Cores—running macOS 11 Big Sur or macOS 10.x (Catalina or earlier). MacOS 12 Monterey and macOS 13 Ventura with the latest versions of Roon (2.71 and later) just require an update to the latest roon 2.71 Build 1683 or higher. For many high-end music servers that use their own operating system, it is simply not known what will work and what will not. Some manufacturers such as Innuos, Primecore and Grimm Audio, already issued information that their systems´ OS will be properly updated, and therefore not being affected.

QNAP relies on the QTS and QuTS hero operating systems, which are based on their own Linux adaptation. QNAP itself has determined that since 2018, the components of the operating system, especially the so-called glibc interface, no longer receive updates to newer versions. Roon Server can no longer function directly on QTS 5.x or QuTS hero 5.x and never will.
There are indications of a future QTS 6.0, but it is unlikely to be released any time soon. For QuTS hero 6.0, there are contradictive reports if native roon server app is running (as of August 2026).

From the moment of the update, the Roon server will no longer function with an operating system that falls below the minimum requirements. This means Roon will not even start.
If the operating system can be replaced or updated to meet the minimum requirements, continued operation after the update will be possible without problems.

Roon is adopting a modernized technical basis to enable better performance and more stability with lower memory usage (RAM). In the past, there were often reports of slower response times, increased RAM consumption, or instability.
The disadvantage is that older or less flexible systems are left out.

That depends on the platform.
Some Macs can be upgraded to macOS 14 Sonoma. This is particularly true for various Apple computers manufactured after 2018.
For Mac users who simply cannot update beyond macOS 11 (Big Sur), Roonlabs provides its own .DMG file of an older server version, which must not be updated further. See the link below. For further information on running roon server on a Mac, please click the link below these FAQs.
The same applies to Synology NAS whose hardware is compatible with DSM 7.2 or higher. RAM upgrades are often easy here; CPU performance is more likely to be the bottleneck, which limits Roon’s performance anyway.
For Asustor, most machines powerful enough for Roon should already have a sufficiently compatible ADM4.1 or higher installed.
Anyone with a Linux server or NAS with appropriate capabilities, as well as basic knowledge of manual installation and setup, can run Roon Server in a Docker container. This is particularly recommended for owners of QNAP NAS. Please see detailed guide link below the FAQ section.

A Docker container is a virtual machine that runs with its own newer OS environment, on top of the older, no longer compatible OS. It essentially simulates an additional computer with components of a newer system.
On the affected QNAP and older Synology NAS units, there is an application that allows setting up and commissioning Docker containers. The respective application only needs to be installed. For QNAP, this is Container Station; for Synology, it can be done via Docker management and the Container Creation Wizard.
A corresponding container has been issued by Roonlabs, and they have published a detailed manual how to install docker, and issued their own docker configurator via GitHub. See links below.

Yes, that should remain possible with all Roon Server variants that have a version number of B 1641 or lower.
However, it is important to disable automatic updates on both the server and all connected devices, including smartphones and tablets with Roon Remote, and to generally refuse updates. The corresponding function can be found in the settings in the Roon Remote App, under “About Roon.”
In the long term, however, these servers will be excluded from new features, updates, and security patches. A version conflict with mobile devices running newer generations of Roon Remote cannot be ruled out either. As a temporary solution, until new operating systems or workarounds like a Docker container are set up, this solution should work. If you set it up in time.

For owners of QNAP NAS, older Synology and Apple Mac devices with older operating systems, as well as high-end music servers with unknown operating systems: Very urgent.