Skip to main content

Version 7.3.0-rc.2 2026-05-06

This release candidate builds on 7.3.0-rc.1 with targeted fixes for internal boot, ZFS pool replacement workflows, virtualization, Docker, TPM-based licensing, WebGUI security hardening and other misc. bug fixes.

This is RELEASE CANDIDATE software. Please use on test servers only.

Upgrading​

For step-by-step instructions, see Updating Unraid. Questions about your license?

Known issues​

See Unraid OS Pre-release (Bugs & Feedback) for issues reported by other testers.

  • During internal boot setup, the WebGUI may show Array Offline while internal boot configures. DO NOT manually restart or remove your flash drive during this process.
  • Internal boot requires boot storage that can be accessed by built-in Linux drivers during startup. Devices that require third-party drivers or post-boot configuration cannot be used for internal boot. Unraid supports the following drivers for internal boot:
    • mvsas (rc.2)
    • mpt3sas
    • smartpqi (rc.2)
    • nvme
    • ahci
    • mmc
  • Some invalid ZFS pool names that begin with reserved ZFS prefixes may fail without a clear WebGUI error. Choose a different pool name if creation does not complete.
  • If a split boot-pool device is removed and another device is added immediately afterward, the slot count may not always update until the server is rebooted.

Notes​

  • Adding, removing, and replacing devices in the ZFS boot pool works correctly. If you start with a dedicated boot pool made from two small devices and replace them one at a time with larger devices, the pool may convert to a split pool.
  • When boot-pool devices are added, removed, or replaced, Unraid does not currently update the server BIOS boot priority automatically. After making those changes, verify the BIOS boot order manually.

Rolling back​

  • If you already enabled internal boot or switched to TPM-based licensing while testing the 7.3 pre-release, you can roll back to 7.3.0-rc.1 without issue.
  • Do not roll back to 7.2.5 or earlier after enabling internal boot or TPM-based licensing.
  • If you upgrade ZFS pool features, earlier Unraid releases may not be able to import those pools.
  • If you need to roll back, follow the normal pre-release rollback process before moving between builds.

If you are considering any rollback path below 7.3.0-rc.1, also see the 7.2.4 release notes.

Changes from rc.1​

Only the items in this section are new or materially updated in rc.2. The full 7.3.0-rc.1 changelog is included below.

Security​

  • Security: Add WebGUI security hardening for authenticated-session request handling. Upgrade recommended - this security fix is also present in 7.2.5.
  • Security note: The included 7.3 kernel already contains the fix for CVE-2026-31431, the Copy Fail local privilege escalation vulnerability. This security fix is also present in 7.2.5.

Licensing​

  • Fix: Improve TPM-based license replacement blacklist handling so a transferred TPM-based key is blocked without permanently blocking the underlying motherboard GUID from future valid activation.

Containers / Docker​

  • Improvement: Update Docker to version 29.4.1.

Storage​

  • Feat: Add mvsas and smartpqi as built-in storage drivers - this allows them to be used for internal boot
  • Fix: Address an md/unraid driver crash.
  • Fix: Correct ZFS pool replacement handling when a dropped device is marked REMOVED, so replacement workflows no longer leave the pool degraded with a stale blue new-device state or repeated overwrite warning.
  • Fix: Improve dedicated and split boot-pool detection after boot-pool devices are replaced with larger devices.
  • Fix: Allow adding a device to a formatted split boot pool when the data partition is formatted as ZFS or BTRFS.
  • Fix: Prevent creation of ZFS pools whose names start with reserved ZFS name prefixes: mirror, raidz, draid, and spare.

WebGUI / System​

  • New: Show chassis serial number in System Info when a valid chassis serial is available.
  • Fix: Keep the WebGUI responsive while adding Docker containers from the Add Container page.
  • Fix: Correct stale status display after affected storage replacement workflows.
  • Fix: Use online / offline instead of on-line / off-line in various text

Virtualization​

  • Fix: Update deprecated VM machine types during startup so older VMs do not fail with unsupported QEMU machine-type errors after upgrading.
  • Fix: Show the assigned RenderGPU for the first VM in the VM list when using Virtio 3D.

Changes from 7.2.5 - Previously included in 7.3.0-rc.1​

Security​

  • Security: Add WebGUI security hardening for authenticated-session request handling. Upgrade recommended.
  • Security: Update bind from 9.20.13 to 9.20.20.
  • Security note: The included 7.3 kernel contains the fix for CVE-2026-31431, the Copy Fail local privilege escalation vulnerability.

Onboarding and internal boot​

New users automatically start in the onboarding wizard, where they choose language, time zone, theme, activation code settings, and boot option, including internal boot.

Existing users can go to Settings → Onboarding Wizard to review settings and migrate to internal boot.

For details, see Onboarding.

  • New: Add dedicated boot pool support as a distinct option from split boot pools.
  • Improvement: Move the Onboarding Wizard under Tools and add a direct internal-boot device link when setup still needs attention.
  • Improvement: Update many user-facing strings from "Flash" to "Boot".
  • Improvement: Improve organization of boot-related settings.
  • Fix: Force the expected reboot or shutdown flow after internal boot setup.
  • Fix: Restore the Boot page browse icon on affected systems.
  • Fix: Correct black-theme dropdown visibility in the Onboarding Wizard.
  • Fix: Correct the GMT time zone selection state in the Onboarding Wizard.
  • Fix: Correct the New Config tool so it handles boot pools properly.
  • Fix: Allow pools that were previously configured as boot pools to be removed correctly.
  • Fix: Keep the boot pool visible when an expected boot-pool disk is missing or a wrong disk is selected.
  • Fix: Improve dedicated and split boot-pool detection after boot-pool devices are replaced with larger devices.

Licensing​

All new and replacement keys use TPM-based licensing when possible because it is more reliable than flash-based licensing.

To proactively switch to TPM-based licensing, see How can I move from flash-based licensing to TPM-based licensing.

  • Improvement: Improve handling of missing key file states.
  • Fix: Improve TPM-based license replacement blacklist handling so a transferred TPM-based key is blocked without permanently blocking the underlying motherboard GUID from future valid activation.

Containers / Docker​

  • Improvement: Update Docker from 29.3.1 to 29.4.1.
  • New: Add an optional fixed MAC address field to Docker templates for containers that need a stable network identity across restarts, including DHCP reservations, router or firewall rules, switch ACLs, and monitoring.
  • Improvement: Show Docker container MAC addresses in Advanced View alongside existing network and IP information.
  • Fix: Migrate legacy --mac-address= values from Extra Parameters into the new fixed MAC field where safe, while leaving templates unchanged when networking is still owned by Extra Parameters.
  • Fix: Prevent duplicate Docker user templates when container names and template filenames differ only by case on case-sensitive boot storage, such as ZFS internal boot.
  • Fix: Add the missing support needed for Strix Point iGPU Docker workloads on affected systems. See the user report.
  • Fix: Keep the WebGUI responsive while adding Docker containers from the Add Container page.

Storage​

  • New: Show corrupted files in ZFS pool status.
  • New: Add user-facing control for ZFS ARC max size on Settings → Disk Settings → Tunable (zfs_arc_max). This used to be controlled through a custom ZFS driver parameter. You may need to migrate your setting to the new location.
  • Improvement: Improve visibility into pool and drive health information.
  • Improvement: Improve duplicate drive detection and related messaging.
  • Fix: Address sector-size compatibility regressions for 4Kn devices and some LSI HBA setups using 512e disks that affect XFS-formatted array disks.
  • Fix: Address an md/unraid driver crash that could make encrypted XFS array disks report a missing or wrong encryption key when affected systems used 4Kn parity.
  • Fix: 4Kn devices formatted XFS with 7.3.0-beta.1 or newer can now be moved out of the array and mounted normally in pools or other Linux systems. Older XFS filesystems that were formatted inside the array on 4Kn disks in previous Unraid releases still cannot be corrected without reformatting.
  • Fix: Prevent drives from spinning down during parity copy as part of parity swap.
  • Fix: Correct ZFS pools waking once every 24 hours in affected cases.
  • Fix: Correct pool-device detection for larger device names, including devices such as sdp and sdap, so affected pool disks no longer appear as Unknown.
  • Fix: Correct ZFS pool replacement handling when a dropped device is marked REMOVED, so replacement workflows no longer leave the pool degraded with a stale blue new-device state or repeated overwrite warning.
  • Fix: Allow adding a device to a formatted split boot pool when the data partition is formatted as ZFS or BTRFS.
  • Fix: Prevent creation of ZFS pools whose names use reserved ZFS name prefixes such as mirror, raidz, raidz1, raidz2, raidz3, or spare.

WebGUI / System​

  • Improvement: Refresh WebGUI and system-device workflows for the 7.3 internal-boot and hardware-support work.
  • Improvement: Add support for the Cooler Master Qube 500 case model.
  • New: Show chassis serial number in System Info when a valid chassis serial is available.
  • Fix: Handle CRLF line endings in Syslinux and GRUB configuration files so the Boot Parameters page can read settings edited from Windows.
  • Fix: Correct RAM display parsing after dmidecode unit label changes.
  • Fix: Correct time zone label and identifier issues in affected regions.
  • Fix: Restore the Bind selected to vfio action in System Devices on affected setups.
  • Fix: Stop WebGUI and API requests from spinning up the full HDD array on affected systems.
  • Fix: Restore CPU isolation saving so selected cores apply correctly again.
  • Fix: Persist the built-in rclone configuration in a persistent location across reboot.
  • Fix: Correct strict proxy connectivity checks when using HTTP proxies that block CONNECT on port 80.
  • Fix: Correct rc.crond status typo.
  • Fix: Correct Discord notification formatting issues.
  • Fix: Correct stale status display after affected storage replacement workflows.
  • Fix: Remove outdated ReiserFS warnings and stale references.

File Manager​

  • Improvement: Improve File Manager UI and overall performance.
  • Improvement: Improve same-filesystem move operations.
  • Improvement: Improve upload behavior.
  • Fix: Correct File Manager styling on the Main tab so it follows the selected theme.
  • Fix: Correct path handling issues involving /sub/ in file paths.
  • Fix: Correct scrollbar interaction issues during copy or move operations.
  • Fix: Correct handling of double quotes in directory names.
  • Fix: Correct move and rename edge cases.
  • Fix: Preserve empty directories during affected rename operations.

Networking / Hardware​

  • Improvement: Update kernel config for additional AMD XDNA and ACP support, including CONFIG_DRM_ACCEL_AMDXDNA, CONFIG_DRM_AMD_ACP, CONFIG_REMOTEPROC, generic power-domain support, and CONFIG_REMOTEPROC_CDEV.
  • Improvement: Add AMD NPU firmware, Intel Bluetooth firmware, Intel wireless firmware, and the amdxdna kernel module.
  • New: Add Settings → Tailscale stub page for easier plugin discovery.

Virtualization​

  • Improvement: Improve System Devices visibility and VM template workflows.
  • Improvement: Improve custom VNC port validation and defaults.
  • Improvement: Update QEMU to 10.2.2, libvirt to 12.2.0, and refresh the OVMF firmware package.
  • Fix: Address virtiofs hangs seen with affected Linux guests.
  • Fix: Correct VM snapshot commit cleanup not updating snapshot metadata correctly.
  • Fix: Correct libvirt startup issues encountered during testing.
  • Fix: Prevent VMs created from user-defined templates from inheriting the source VM MAC address.
  • Fix: Update deprecated VM machine types during startup so older VMs do not fail with unsupported QEMU machine-type errors after upgrading.
  • Fix: Restore the Unraid UEFI logo for VMs.
  • Fix: Show the assigned RenderGPU for the first VM in the VM list when using Virtio 3D.

Linux kernel​

  • Linux kernel: update from 6.12.85-Unraid to 6.18.23-Unraid.

Base distro updates​

Removed packages​

  • reiserfsprogs: version 3.6.27-5 removed

Added packages​

  • efibootmgr: version 18
  • efivar: version 20201015_cff88dd
  • gettext: version 1.0
  • gettext-tools: version 1.0
  • iotop-c: version 1.30-1_SBo
  • libdisplay-info: version 0.3.0
  • tpm2-tools: version 5.7-1_SBo
  • tpm2-tss: version 4.1.3-1_SBo

Updated packages​

  • aaa_libraries: version 15.1-45 -> 15.1-50
  • adwaita-icon-theme: version 49.0 -> 50.0
  • at-spi2-core: version 2.58.1 -> 2.60.3
  • bash: version 5.3.003 -> 5.3.009
  • bash-completion: version 2.16.0 -> 2.17.0
  • brotli: version 1.1.0-3 -> 1.2.0
  • btrfs-progs: version 6.17 -> 6.19.1
  • ca-certificates: version 20251003 -> 20260413
  • cifs-utils: version 7.4 -> 7.5
  • coreutils: version 9.8-2 -> 9.11
  • cryptsetup: version 2.8.1 -> 2.8.6
  • curl: version 8.19.0 -> 8.20.0
  • dmidecode: version 3.6 -> 3.7
  • dnsmasq: version 2.91 -> 2.92
  • docker: version 29.3.1-1_LT -> 29.4.1-1_LT
  • dynamix.unraid.net: version 4.32.3-2 -> 4.33.0
  • e2fsprogs: version 1.47.3 -> 1.47.4
  • editres: version 1.0.9 -> 1.1.1
  • elfutils: version 0.193 -> 0.195
  • elogind: version 255.17 -> 255.23
  • etc: version 15.1-15 -> 15.1-16
  • ethtool: version 6.15 -> 7.0
  • eudev: version 3.2.14-2 -> 3.2.14-3
  • exfatprogs: version 1.3.0 -> 1.3.2
  • file: version 5.46-2 -> 5.47-2
  • freeglut: version 3.6.0 -> 3.8.0
  • freetype: version 2.14.1 -> 2.14.3
  • fuse3: version 3.16.2 -> 3.16.2-2
  • gawk: version 5.3.2 -> 5.4.0
  • gdk-pixbuf2: version 2.44.4-2 -> 2.44.6
  • git: version 2.51.1 -> 2.54.0
  • glew: version 2.2.0-3 -> 2.3.1
  • glib2: version 2.86.1 -> 2.88.1
  • glibc-zoneinfo: version 2025b -> 2026b
  • gnutls: version 3.8.12 -> 3.8.13 (CVE-2026-33846)
  • grub: version 2.12-18 -> 2.14-3
  • gtk+3: version 3.24.51 -> 3.24.52
  • harfbuzz: version 12.1.0 -> 14.2.0
  • htop: version 3.4.1 -> 3.5.1
  • icu4c: version 77.1 -> 78.3
  • infozip: version 6.0-7 -> 6.0-8 (CVE-2014-8139, CVE-2014-8140, CVE-2014-8141, CVE-2016-9844, CVE-2018-18384, CVE-2018-1000035, CVE-2021-4217, CVE-2022-0529, CVE-2022-0530)
  • iperf3: version 3.18-1cf -> 3.20-1cf
  • iproute2: version 6.17.0 -> 7.0.0
  • iptables: version 1.8.11 -> 1.8.13
  • jansson: version 2.14.1 -> 2.15.0
  • jemalloc: version 5.3.0-2 -> 5.3.1
  • krb5: version 1.22.1-2 -> 1.22.2-2
  • less: version 685 -> 692
  • libX11: version 1.8.12-2 -> 1.8.13
  • libXcomposite: version 0.4.6 -> 0.4.7
  • libXdamage: version 1.1.6 -> 1.1.7
  • libXext: version 1.3.6 -> 1.3.7
  • libXinerama: version 1.1.5 -> 1.1.6
  • libXmu: version 1.2.1 -> 1.3.1
  • libXrandr: version 1.5.4 -> 1.5.5
  • libXxf86dga: version 1.1.6 -> 1.1.7
  • libXxf86vm: version 1.1.6 -> 1.1.7
  • libcap-ng: version 0.8.5-2 -> 0.9.3
  • libdeflate: version 1.24 -> 1.25
  • libdrm: version 2.4.127 -> 2.4.133
  • libevdev: version 1.13.5 -> 1.13.6
  • libfontenc: version 1.1.8 -> 1.1.9
  • libgcrypt: version 1.11.2 -> 1.12.2
  • libgpg-error: version 1.56 -> 1.60
  • libjpeg-turbo: version 3.1.2 -> 3.1.4.1
  • libnetfilter_conntrack: version 1.1.0 -> 1.1.1
  • libnftnl: version 1.3.0 -> 1.3.1
  • libnl3: version 3.11.0 -> 3.12.0
  • libnvme: version 1.15 -> 1.16.1
  • libpciaccess: version 0.18.1 -> 0.19
  • libpng: version 1.6.57 -> 1.6.58
  • libunistring: version 1.4.1 -> 1.4.2
  • liburing: version 2.12 -> 2.14
  • libuv: version 1.51.0 -> 1.52.1
  • libvirt: version 11.7.0-1cf_LT -> 12.2.0-1cf_LT
  • libvirt-php: version 0.5.8-8.3.29_LT -> 0.5.8-8.4.15_LT
  • libx86: version 1.1-5 -> 1.1.1
  • libxkbcommon: version 1.11.0 -> 1.13.1
  • libxkbfile: version 1.1.3 -> 1.2.0
  • listres: version 1.0.6 -> 1.0.7
  • lmdb: version 0.9.33 -> 0.9.35
  • lsof: version 4.99.5 -> 4.99.6
  • lvm2: version 2.03.35 -> 2.03.40
  • lzip: version 1.25 -> 1.26
  • lzlib: version 1.15 -> 1.16
  • mcelog: version 207 -> 210
  • mesa: version 25.2.5 -> 26.0.6
  • mkfontscale: version 1.2.3 -> 1.2.4
  • nano: version 8.6 -> 9.0
  • ncurses: version 6.5_20250816 -> 6.6
  • nfs-utils: version 2.8.4 -> 2.9.1
  • nghttp2: version 1.67.1 -> 1.69.0
  • nghttp3: version 1.12.0 -> 1.15.0
  • noto-fonts-ttf: version 2025.10.01 -> 2026.05.01
  • ntfs-3g: version 2022.10.3 -> 2026.2.25
  • ntp: version 4.2.8p18-7 -> 4.2.8p18-8
  • nvme-cli: version 2.15 -> 2.16
  • openssh: version 10.2p1 -> 10.3p1
  • ovmf: version unraid202502 -> stable202602-2
  • pam: version 1.7.1 -> 1.7.2
  • pango: version 1.56.4 -> 1.57.1
  • parted: version 3.6 -> 3.7
  • pciutils: version 3.14.0 -> 3.15.0
  • pcre2: version 10.46 -> 10.47
  • perl: version 5.42.0 -> 5.42.2-2
  • php: version 8.3.29-1_LT -> 8.4.18-1_LT
  • pkgtools: version 15.1-30 -> 15.1-31
  • procps-ng: version 4.0.5 -> 4.0.6
  • qemu: version 9.2.3-1cf_LT -> 10.2.2-1_SBo_LT
  • rclone: version 1.70.1-1_SBo_LT -> 1.72.0-1_SBo_LT
  • readline: version 8.3.001-2 -> 8.3.003
  • rsync: version 3.4.1 -> 3.4.2
  • sed: version 4.9 -> 4.10
  • setxkbmap: version 1.3.4 -> 1.3.5
  • shadow: version 4.18.0 -> 4.19.4-2
  • spirv-llvm-translator: version 21.1.1 -> 22.1.2
  • sqlite: version 3.50.4 -> 3.53.0
  • sysstat: version 12.7.8 -> 12.7.9
  • sysvinit: version 3.15 -> 3.18
  • sysvinit-scripts: version 15.1-35 -> 15.1-36
  • talloc: version 2.4.3 -> 2.4.4
  • tdb: version 1.4.14 -> 1.4.15
  • telnet: version 0.17-7 -> 0.17-8 (CVE-2020-10188)
  • tree: version 2.2.1 -> 2.3.1
  • userspace-rcu: version 0.15.3 -> 0.15.6
  • util-linux: version 2.41.2 -> 2.42-2
  • virglrenderer: version 1.1.1-1cf -> 1.2.0-1cf
  • virtiofsd: version 1.13.1-1cf -> 1.13.2-1cf
  • wayland: version 1.24.0 -> 1.25.0
  • wireguard-tools: version 1.0.20250521 -> 1.0.20260223
  • wireless-regdb: version 2025.10.07 -> 2026.03.18
  • xauth: version 1.1.4 -> 1.1.5
  • xfsprogs: version 6.17.0 -> 6.19.0
  • xkbcomp: version 1.4.7 -> 1.5.0
  • xkeyboard-config: version 2.46 -> 2.47
  • xkill: version 1.0.6 -> 1.0.7
  • xorg-server: version 21.1.22-2 -> 21.1.22-3 (CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003)
  • xrandr: version 1.5.3 -> 1.5.4
  • xterm: version 403 -> 410
  • zfs: version 2.3.4_6.12.82_Unraid-2_LT -> 2.4.1_6.18.26_Unraid-1_LT