Unraid OS 7.4.0-beta.1 is live for testing!

Highlights:

• Shared task tray — background jobs from plugins, Docker, and VMs now queue into one tray with foreground recall from any browser tab, instead of the old bomb-icon workaround.

• Multiple custom networks for Docker containers — and additional network attachments now survive a container recreate/update instead of getting wiped.

• Memory limit field for Docker — exposed directly in Advanced View, no more passing it as an extra parameter.

• Live icon preview on the Docker Add/Edit forms.

• Configurable power-button behavior — Shut down, Reboot, or Do nothing, under Settings → Power Options. Good news for anyone who's had a case bump take their server down.

• Boot Device backups can now be downloaded directly or saved to the server, with progress tracking.

• A few fixes: Enter-to-start on encrypted array passphrase fields, File Manager no longer bounces exclusive shares out of /mnt/user/<share>, Plugins page no longer hangs on a slow/unreachable plugin's update check, and a VM startup PHP deprecation warning is gone.

• New hardware support: kernel modules/firmware for Realtek RTW88 8812A/8814A/8821A wireless adapters.

Security: updates across bind, libXfont2, libarchive, libssh, openssh, p11-kit, php, samba, wpa_supplicant, and xorg-server — CVE details are in the full release notes. Notification integrations also now use certificate-verified requests for the public API.

Under the hood: Linux kernel 6.18.44, Docker 29.7.1, 68 packages updated total.

Standard beta caveats apply! Please do not run on production. Test on spare hardware or a VM, and back up your flash drive before updating.

Full release notes: https://docs.unraid.net/unraid-os/release-notes/

Report bugs / feedback: https://docs.unraid.net/unraid-os/release-notes/7.4.0

Updating instructions: https://docs.unraid.net/unraid-os/updating-unraid/

Release notes are 404 for me. Other links work.