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elibosley merged 2 commits into from
May 27, 2026
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feat: Add Unraid OS 7.3.1 release notes #493

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ea21f32
docs(release-notes): add 7.3.1 changelog
elibosley May 27, 2026
5517b45
docs(release-notes): correct 7.3.1 heading
elibosley May 27, 2026
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90 changes: 90 additions & 0 deletions docs/unraid-os/release-notes/7.3.1.md
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# Version 7.3.1 2026-05-26

This release focuses on security updates, a Linux kernel update, Docker and ZFS updates, storage fixes, WebGUI/system fixes, and base distro package updates.

Recommended for all users, especially those who want the latest security and stability fixes.

## Upgrading

For step-by-step instructions, see [Updating Unraid](/unraid-os/updating-unraid/). Questions about your [license](/unraid-os/troubleshooting/licensing-faq/)?

## Known issues

* No new release-specific known issues are reported for this release. See the [Unraid OS 7.3.0](/unraid-os/release-notes/7.3.0/) release notes for previously documented issues that may still apply.

## Notes

* This release includes security-related package updates.
* The Unraid API version remains 4.34.0.

## Rolling back

* No special rollback notes for this release.

## Changes vs. [Unraid OS 7.3.0](/unraid-os/release-notes/7.3.0/)

### Security

* Security: updated bind to address CVE-2026-1519, CVE-2026-3039, CVE-2026-3104, CVE-2026-3119, CVE-2026-3591, CVE-2026-3592, CVE-2026-3593, CVE-2026-5946, and CVE-2026-5947.
* Security: updated dnsmasq to address CVE-2026-2291, CVE-2026-4890, CVE-2026-4891, CVE-2026-4892, CVE-2026-4893, and CVE-2026-5172.
* Security: updated nginx to address CVE-2025-53859, CVE-2026-1642, CVE-2026-27651, CVE-2026-27654, CVE-2026-27784, CVE-2026-28753, CVE-2026-28755, CVE-2026-32647, CVE-2026-40460, CVE-2026-40701, CVE-2026-42934, CVE-2026-42945, and CVE-2026-42946.
* Security: updated rsync to address CVE-2026-29518, CVE-2026-43617, CVE-2026-43618, CVE-2026-43619, CVE-2026-43620, and CVE-2026-45232.
* Security: updated Docker to 29.5.1, including Docker upstream CVE fixes.
* Security: updated avahi, glibc, and jq with NVD-referenced security fixes listed in the base distro updates below.

### Containers / Docker

* Improvement: Docker engine updated to 29.5.1.
* Fix: the Docker container dropdown menu remains usable when many containers are shown.

### Storage

* Improvement: ZFS updated to 2.4.2_6.18.33_Unraid.
* Fix: unassigned spare disks now spin down again as expected.
* Fix: mirrored boot pools can recover from a degraded state after a member returns for cache pool usage.
* Fix: relaxed the pool name validity check when importing existing pools to match pre-7.3 validation.
* Fix: Replacing online raidz device can fail

### WebGUI / System

* Fix: restored missing Connect version-check logic so required updates are detected correctly.
* Fix: file uploads are now handled correctly on Safari iOS.

### Networking / Hardware

* Fix: dhcpcd no longer waits 60 seconds to obtain an IP address.

### Linux kernel

* Linux kernel: update to 6.18.33-Unraid.

## Base distro updates

### Updated packages (25)

* aaa_glibc-solibs: version 2.42 -> 2.43
* at-spi2-core: version 2.60.3 -> 2.60.4
* avahi: version 0.8-3_SBo_LT -> 20260508_3737842-1_SBo (NVD: CVE-2023-38469, CVE-2023-38470, CVE-2023-38471, CVE-2023-38472, CVE-2023-38473)
* bash: version 5.3.009 -> 5.3.009-2
* bind: version 9.20.22 -> 9.20.23 (CVE-2026-3039, CVE-2026-3592, CVE-2026-3593, CVE-2026-5946, CVE-2026-5947; NVD: CVE-2026-5950)
* dnsmasq: version 2.92 -> 2.92rel2
* docker: version 29.4.3-1_LT -> 29.5.1-1_LT
* elogind: version 255.24 -> 255.25
* fontconfig: version 2.17.1-5 -> 2.18.0-2
* glibc: version 2.42-2_LT -> 2.43 (NVD: CVE-2025-15281, CVE-2026-0861, CVE-2026-0915)
* jq: version 1.6-1_SBo -> 1.8.1-1_SBo (NVD: CVE-2024-53427, CVE-2025-9403)
* less: version 692 -> 702
* libXi: version 1.8.2 -> 1.8.3
* libedit: version 20260508_3.1 -> 20260512_3.1
* libusb: version 1.0.29 -> 1.0.30
* libusb-compat: version 0.1.8 -> 0.1.9
* lvm2: version 2.03.40 -> 2.03.41
* mesa: version 26.1.0 -> 26.1.1
* nginx: version 1.27.2-1_SBo_LT -> 1.30.1-1_SBo_LT (NVD: CVE-2025-53859, CVE-2026-1642, CVE-2026-27651, CVE-2026-27654, CVE-2026-27784, CVE-2026-28753, CVE-2026-28755, CVE-2026-32647, CVE-2026-40460, CVE-2026-40701, CVE-2026-42934, CVE-2026-42945, CVE-2026-42946)
* rsync: version 3.4.2 -> 3.4.3 (CVE-2026-29518, CVE-2026-43617, CVE-2026-43618, CVE-2026-43619, CVE-2026-43620, CVE-2026-45232)
* samba: version 4.22.8-1_LT -> 4.22.10-1_LT
* util-linux: version 2.42-2 -> 2.42.1
* which: version 2.23 -> 2.25
* xev: version 1.2.6 -> 1.2.7
* xfsprogs: version 7.0.0 -> 7.0.1
* zfs: version 2.4.1_6.18.29_Unraid-1_LT -> 2.4.2_6.18.33_Unraid-1_LT