# Unraid OS 7.4.0 updates Linux kernel to 6.18.60, refreshes web administration UI

> **Key takeaway:** Unraid OS 7.4.0 ships with Linux kernel 6.18.60 and delivers web-based administration interface improvements for its NAS-focused commercial Linux distribution.

**Published:** 2026-11-10T23:41:41+00:00 
**Source:** DistroWatch Weekly & News 
**Category:** distro-news 
**Canonical URL:** https://fosswire.org/news/unraid-os-740-updates-linux-kernel-to-61860-refreshes-web-ad.html 

## Summary
Lime Technology has released Unraid OS 7.4.0, the latest version of its commercial Linux distribution purpose-built for Network-Attached Storage deployments. The release updates the underlying Linux kernel to version 6.18.60, bringing newer hardware support and subsystem improvements to the platform. The company has also made various enhancements to the web-based administration user interface that serves as the primary management layer for Unraid systems.

Unraid occupies a distinct niche in the Linux ecosystem as a proprietary but Linux-based operating system targeted at home server and small business NAS users. The distribution is known for its hybrid RAID approach and support for Docker containers and virtual machines. This maintenance release continues the 7.x series with incremental kernel and UI refinements rather than major architectural changes.

## Kernel and administration changes in Unraid 7.4.0
- **Linux kernel 6.18.60:** The distribution moves to kernel version 6.18.60, providing updated hardware drivers, security patches, and subsystem improvements from the upstream 6.18 longterm series.
- **Web administration UI:** The release includes unspecified improvements to the browser-based management interface, which is the primary control plane for array configuration, share management, and container/VM operations.
- **NAS-focused architecture:** Unraid maintains its specialized storage stack with its non-standard RAID implementation that allows mixed drive sizes and independent filesystem per disk, distinct from traditional Linux mdadm or ZFS approaches.
- **Commercial distribution model:** Unlike community-driven NAS alternatives such as TrueNAS CORE or OpenMediaVault, Unraid remains a paid commercial product with proprietary licensing, though built atop open-source Linux components.

## Why it matters
For Linux users evaluating NAS solutions, Unraid 7.4.0 represents continued investment in a proprietary alternative to open-source platforms like TrueNAS SCALE or OpenMediaVault. The kernel update to 6.18.60 ensures compatibility with newer hardware for users building or refreshing home server builds, though the closed-source nature of Unraid's management layer and licensing model remains a differentiator from fully open alternatives. System administrators running Unraid deployments should plan for standard maintenance updates to capture the kernel security and driver improvements.