Unraid OS 7.4 has been released as the latest stable version of the Linux-based NAS platform, with the main changes concerning Docker networking.
Containers can now connect to multiple custom networks directly through their templates, with those connections preserved when containers are updated or recreated. Previously, managing additional network connections required extra configuration outside the standard container template.
Container management also gains a memory limit field in the Docker Add/Edit interface’s Advanced View, and Docker registry update checks now support OCI image manifests and indexes.
On the storage side, Unraid 7.4 introduces progress and status tracking for Mover, the utility responsible for transferring files between storage locations. Mover now also preserves hard links during file transfers.
The built-in File Manager has received a reliability fix addressing file moves between shares and storage pools that could previously result in lost source files. It also improves handling of exclusive shares under /mnt/user.
Another addition is a shared task tray for monitoring background operations. Administrators can follow running tasks and review their output from any browser tab, rather than losing track of operations when switching pages.
Boot-device backups have been improved as well. Users can download backups directly to their computers or save them to the server, with selectable compression and progress reporting.
Additionally, the physical power button is now configurable through Settings > Power Settings > Power Button. Available actions include shutting down the server, rebooting it, or doing nothing.
Unraid 7.4 also includes several security improvements. The WebGUI now treats runtime-supplied values as plain text instead of interpreting them as markup across several administrative pages. OpenTerminal also validates request inputs, while notification agents connecting to public APIs now enforce TLS certificate verification.
Under the hood, the release upgrades the Linux kernel to version 6.18.60-Unraid, updates Btrfs to 7.3, and includes ZFS 2.4.4 rebuilt for the new kernel. Sixteen base packages have been updated too, including Bind, Brotli, Patch, and util-linux, with fixes for several reported security vulnerabilities.
Unraid OS 7.4 is now available as a stable update. Existing users can upgrade through the operating system’s update mechanism. For more information, see the announcement.
