Unraid 7.4.0-beta.2 is out now and is the second beta build in the 7.4 series.

This build adds Docker multi-network and memory controls, shared background task management, boot-device backup improvements, configurable power-button behavior, mover status tracking, and expanded hardware support, plus a kernel update to 6.18.47-Unraid and security updates across core packages.

This is beta software. Please use on test servers only.

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Changes vs. 7.3.2

Containers / Docker

• New: Docker container templates support multiple custom networks, with additional network attachments retained when containers are recreated or updated

• New: Docker Add/Edit forms show a live preview for the container icon URL, with a fallback when the URL is empty or invalid

• New: Advanced View exposes a Memory limit field for Docker containers

Storage

• New: Mover progress and status tracking is available for Unraid 7.x

• New: Drive-location support can use SGPIO/IBPI-capable controllers when SES is unavailable

• Fix: A stopped array now shows offline and filesystem status text instead of 100% utilization

• Fix: Pressing Enter in encrypted array passphrase fields now starts the array when passphrase validation succeeds

WebGUI / System

• New: Background operations from plugins, Docker, and virtual machines can be queued and managed from a shared task tray, with foreground recall from any browser tab

• New: Boot-device backups run as background tasks with selectable compression, live progress, and automatic download when complete

• New: Configure the physical power button under Settings → Power Settings → Power Button → Physical power button, with Shut down, Reboot, and Do nothing actions

• Improvement: Foreground task sheets now scale with the browser viewport while retaining saved-width and mobile behavior

• Improvement: License checks now retry to handle transient availability and network conditions

• Fix: Power Options retains both the Power Mode and Power Button tabs when the Dynamix System Buttons plugin is installed

• Fix: Power Options no longer shows the virtualization warning on bare-metal servers

• Fix: The Installed Plugins page checks updates independently so a slow or unreachable plugin does not keep the entire page waiting

• Fix: Plugin update validation failures remain visible with an explanation instead of silently reporting the plugin as up-to-date

• Fix: Plugin Manager post-hook cleanup now runs when error messages contain shell characters

Networking / Hardware

• New: Added kernel modules and firmware for Realtek RTW88 8812A, 8814A, and 8821A wireless adapters

• New: Added support for additional PlayStation, Nintendo, Steam, and Logitech controllers, along with additional audio codecs

• Improvement: Network defaults now follow Fedora's /etc/sysctl.conf baseline, including CUBIC TCP congestion control and fq_codel as the default packet scheduler

Virtualization

• New: Added kernel support for Hyper-V virtualization, including Hyper-V storage, balloon, keyboard, and VMBus modules

• Fix: VM startup no longer logs a PHP deprecation warning when the QEMU location lookup produces no output

Security

• Core package updates include fixes or security-related updates across cryptographic, web, file-sharing, networking, and X server components

• Notification integrations now verify the public API certificate instead of skipping certificate validation

Unraid API

• Updated dynamix.unraid.net to 4.37.3

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Known Issues

No release-specific known issues are documented for beta.2. See the Unraid OS Prerelease (Bugs & Feedback) board for issues reported by other testers.

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Rolling Back

No new release-specific rollback warnings are documented. For earlier rollback guidance, see the 7.3.2 release notes. Follow the normal prerelease rollback process before moving between builds.

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Upgrading

For step-by-step instructions, see Updating Unraid.

Links

• Release Notes — Full 7.4.0-beta.2 release notes

• Blog Post — beta.2 announcement

• Bug Reports — Report issues here please

Looking good here.

Only plugin related problems like the missing icon for Apprise notification (open() "/usr/local/emhttp/plugins/dynamix/icons/apprisenotificationagent.png" failed (2: No such file or directory)" and fix common problems not working.

Btw, the blog post link gives 404. Missing a zero.

Edited September 4Sep 4 by Niklas

5 hours ago, SpencerJ said:

1. New: Background operations from plugins, Docker, and virtual machines can be queued and managed from a shared task tray, with foreground recall from any browser tab

2. New: Boot-device backups run as background tasks with selectable compression, live progress, and automatic download when complete

Is that scheduled? So we can automatically the Boot Device Backup without additionally Script or other Solutions!

No, it doesn’t look like scheduling is included in beta.2. It just lets the boot backup run in the background with progress and automatic download.

Not good

https://product.unraid.net/p/7-4-b2-file-moves-across-shares-pools-delete-files-in-unraid-7-4-beta-2

57 minutes ago, Niklas said:

https://product.unraid.net/p/7-4-b2-file-moves-across-shares-pools-delete-files-in-unraid-7-4-beta-2

I see an issue moving files to exclusive shares due to the rsync changes, but it's not deleting any files for me, just failing to move them, but we can continue in the bug report.