The kernel RPM integrating the patch is now available on the xcp-ng-testing repo. So you can already upgrade and use it. To do this, here are the commands:

yum clean metadata --enablerepo=xcp-ng-testing
yum update kernel --enablerepo=xcp-ng-testing
reboot

It will be released to all our users in an upcoming security update or update train. We don't have a date yet.

Updates published: https://xcp-ng.org/blog/2025/07/03/july-2025-security-and-maintenance-update-for-xcp-ng-8-3-lts/

Thank you for the tests!

New update candidates for you to test!

As you may know, we group non-urgent updates together for a collective release, in order not to cause unnecessary maintenance for our users.

The moment to release such a batch has come, so here they are, ready for user tests before the final release.

• XAPI:
  • Synced with XS82ECU1074
    • Enhancement: robustification of the command xe host-emergency-ha-disable
    • Correction of different issues:
      • Performing a hard shutdown of a VM may hang due to unnecessary RBCA permission checks. An icon (yellow triangle) may then be displayed on some management applications, indicating that the shutdown process did not complete successfully.
      • Canceling a hard shutdown of a hung VM fails because the cancel function only checks for proper shutdowns.
      • Migrating VMs from 8.2.1 to 8.3 with the xe vm-migrate command may fail with the error 'Failure: Unknown tag/contents'.
      • You may encounter a 500 error (internal server error) when trying to retrieve RRD measurements from a powered off virtual machine.
• xsconsole:
  • Synced with XS82ECU1074: Fix for a time-out when creating an iSCSI SR.
• guest-templates-json:
  • Add generic templates for Linux BIOS and UEFI
  • Synced with XS82ECU1085:
    • Oracle 8 requires minimum 2 vCPUS.
    • Added template for Ubuntu 24.04
• sm:
  • Synced with XS82ECU1075
    • Updated multipath.conf for several SANs
    • Fix for CA-393194: Find the real PV in a VG before removing the VG.
• blktap: Synced with XS82ECU1075: Improvements on coalesce performance.
• curl: Backport fixes for several CVE: CVE-2024-2004, CVE-2024-2379, CVE-2024-2398, CVE-2024-2466, CVE-2024-6197, CVE-2024-7264
• openssl: Update to version 1.0.2k-26 from CentOS 7 updates and backports of available CVE fixes from openssl upstream. Update from CentOS 7 Includes fixes for CVE-2021-3712, CVE-2022-2078 and CVE-2023-0286. Backport are fixing CVE-2019-1547, CVE-2019-1551 and CVE-2019-1563.
• xs-openssl: Rebased on version 1.1.1k-12 from CentOS 8 Stream. Include fixes for CVE-2023-5678, CVE-2023-3446, CVE-2023-3817 and a proper fix for CVE-2020-25659.
• zstd: Update to version 1.5.5 to avoid an extremely rare cases of corruption
• xcp-ng-xapi-plugins: Enhance error reporting when a command run on a host fails.
• xenserver-status-report: Update to latest version, synced with XS82ECU1058
• python-defusedxml: Added as a new dependency of xenserver-status-report.
• Alternate Drivers: Updated to newer versions.
  • intel-i40e-alt: From version 2.22.20-3.1 to 2.22.20-5.1
  • mellanox-mlnxen-alt: From version 5.9.0.5.5.0-1.1 to 5.9.0.5.5.0-1.2
  • More information about drivers and current versions is on the drivers page: (https://github.com/xcp-ng/xcp/wiki/Drivers).
• New alternate driver mlx4-modules-alt: To resolve some issues with CX3 cards and SR-IOV, we added an updated version 4.9-7.1.0.0-LTS of this driver.
• kernel-alt: Backport of a fix to correct cooling fan rotation speed on some Lenovo servers. For more information, you can read this thread on the forum.

As a dependency of XOSTOR:

• http-nbd-transfer:
  • Try to open device and start HTTP server before notifying the user
  • Install pyc and pyo files

Test on XCP-ng 8.2

From an up to date host:

yum clean metadata --enablerepo=xcp-ng-testing,xcp-ng-candidates
yum update --enablerepo=xcp-ng-testing,xcp-ng-candidates
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

• blktap: 3.37.4-4.1.xcpng8.2
• curl: 8.6.0-2.2.xcpng8.2
• forkexecd: 1.18.3-12.1.xcpng8.2
• gpumon: 0.18.0-20.1.xcpng8.2
• guest-templates-json: 1.10.7-1.2.xcpng8.2
• http-nbd-transfer: 1.4.0-1.xcpng8.2
• message-switch: 1.23.2-19.1.xcpng8.2
• ocaml-rrd-transport: 1.16.1-17.1.xcpng8.2
• ocaml-rrdd-plugin: 1.9.1-17.1.xcpng8.2
• ocaml-tapctl: 1.5.1-17.1.xcpng8.2
• ocaml-xcp-idl: 1.96.7-6.1.xcpng8.2
• ocaml-xen-api-client: 1.9.0-20.1.xcpng8.2
• ocaml-xen-api-libs-transitional: 2.25.7-1.1.xcpng8.2
• openssl: 1.0.2k-26.2.xcpng8.2
• python-defusedxml: 0.7.1-1.xcpng8.2
• rrd2csv: 1.2.6-17.1.xcpng8.2
• rrdd-plugins: 1.10.9-14.1.xcpng8.2
• sm: 2.30.8-13.1.xcpng8.2
• sm-cli: 0.23.0-63.1.xcpng8.2
• squeezed: 0.27.0-20.1.xcpng8.2
• varstored-guard: 0.6.2-17.xcpng8.2
• vhd-tool: 0.43.0-20.1.xcpng8.2
• wsproxy: 1.12.0-21.xcpng8.2
• xapi: 1.249.38-1.11.xcpng8.2
• xapi-nbd: 1.11.0-19.1.xcpng8.2
• xapi-storage: 11.19.0_sxm2-19.xcpng8.2
• xapi-storage-script: 0.34.1-18.1.xcpng8.2
• xcp-networkd: 0.56.2-17.xcpng8.2
• xcp-rrdd: 1.33.4-6.1.xcpng8.2
• xenopsd: 0.150.19-5.1.xcpng8.2
• xenserver-status-report: 1.3.16-3.xcpng8.2
• xcp-ng-xapi-plugins: 1.10.1-1.xcpng8.2
• xs-opam-repo: 6.35.13-4.xcpng8.2
• xs-openssl: 1.1.1k-12.3.xcpng8.2
• xsconsole: 10.1.13.1-2.1.xcpng8.2
• zstd: 1.5.5-1.el7

Optional packages:

• kernel-alt: 4.19.265-2.xcpng8.2
• Alternates drivers:
  • intel-i40e-alt: 2.22.20-5.1.xcpng8.2
  • mellanox-mlnxen-alt: 5.9_0.5.5.0-1.2.xcpng8.2

New optional package:

• mlx4-modules-alt: 4.9_7.1.0.0-1.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~1 week.

The update is published. Thanks for your tests!
Blog post: https://xcp-ng.org/blog/2022/11/04/november-2022-security-update/

Update published: https://xcp-ng.org/blog/2025/01/23/january-2025-maintenance-update-for-xcp-ng-8-3/

Thank you for the tests!

New update candidates for you to test!

A new batch of non-urgent updates is ready for user tests before a future collective release. Below are the details about these.

• amd-microcode: Update AMD microcode to the 2024-11-21 drop
  • Updates firmware for families 17h and 19h CPUs. For the first time, AMD published updates for non-server CPUs. One can assume that they started supporting microcode update for these, contrarily to what they did in the past, and that these updates thus fix various bugs and vulnerabilities. This is only (sensible) speculation at the moment, though.
• grub: Backport VLAN networking support for UEFI PXE boot.
• iperf3: Upgrade to version 3.9-13 from CentOS 7
  • Includes a security fix for CVE-2023-38403
• kernel: Backport of a fix to correct cooling fan rotation speed on some Lenovo servers. For more information, you can read this thread on the forum.
• kexec-tools: Backport of a patch removing kernel_version(). Fixing a bug for kernel with a patchlevel greater than 255.
• netdata: Fixed an issue that could occur when quickly uninstalling the package, right after an unfinished installation, and leave a service in an undetermined status.
• slang: Fixed display and input issues in optional package mc.
• sm: Contains a fix for leaf coalesce where the size of the leaf to coalesce was wrongly computed before deciding if it was a live coalesce or not, it resulted in some leaf having too much data to coalesce not successing the live coalesce and staying in this state indefinitely.
• xapi:
  • Fixed a malfunction related to the absence of a certificate, which could cause a loop.
  • Fixed and improved various points in IPv6, related to management, reboot and re-initialization.
• xo-lite: Update to version 0.6.0. For more details, you can consult the blog post on the latest release of Xen Orchestra.

Optional packages:

• kernel-alt: Backport of a fix to correct cooling fan rotation speed on some Lenovo servers. For more information, you can read this thread on the forum.
• socat: Update the package to version 1.7.4.1 which includes a fix for a buffer overflow and security fixes.
• traceroute: Updated to version 2.1.5.
• Alternate Drivers: Updated to newer versions.
  • broadcom-bnxt-en-alt: From version 1.10.2_227.0.130.0 to 1.10.3_231.0.162.0
  • intel-i40e-alt: From version 2.22.20-3.1 to 2.26.8
  • More information about drivers and current versions is on the drivers page: (https://github.com/xcp-ng/xcp/wiki/Drivers).

Test on XCP-ng 8.3

From an up-to-date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

• amd-microcode: 20240503-1.1.xcpng8.3
• grub: 2.06-4.0.2.1.xcpng8.3
• iperf3: 3.9-13.xcpng8.3
• kernel: 4.19.19-8.0.37.1.xcpng8.3
• kexec-tools: 2.0.15-20.1.xcpng8.3
• netdata: 1.44.3-1.2.xcpng8.3
• slang: 2.3.2-11.xcpng8.3
• sm: 3.2.3-1.13.xcpng8.3
• xapi: 24.19.2-1.9.xcpng8.3
• xo-lite: 0.6.0-1.xcpng8.3

Optional packages:

• kernel-alt: 4.19.322+1-1.xcpng8.3
• socat: 1.7.4.1-6.xcpng8.3
• traceroute: 2.1.5-2.xcpng8.3
• Alternate drivers:
  • broadcom-bnxt-en-alt: 1.10.3_231.0.162.0-1.xcpng8.3
  • intel-i40e-alt: 2.26.8-1.xcpng8.3

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

None defined, but early feedback is always better than late feedback, which is in turn better than no feedback

New security update candidates (xen)

Xen is being updated to mitigate some vulnerabilities:

• XSA-326: Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored.
• XSA-419: Xenstore: Cooperating guests can create arbitrary numbers of nodes
• XSA-414: A malicious guest can cause xenstored to crash, resulting in the inability to create new guests or to change the configuration of running guests.
• XSA-415: Xenstore: Guests can create orphaned Xenstore nodes
• XSA-416: Xenstore: Guests can cause Xenstore to not free temporary memory
• XSA-417: Xenstore: Guests can get access to Xenstore nodes of deleted domains
• XSA-418: Xenstore: Guests can crash xenstored via exhausting the stack
• XSA-420: Oxenstored 32->31 bit integer truncation issues. A malicious or buggy guest can write a packet into the xenstore ring which causes 32-bit builds of oxenstored to busy loop.
• XSA-421: Xenstore: Guests can create arbitrary number of nodes via transactions

Test on XCP-ng 8.2

From an up to date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update xen-dom0-libs xen-dom0-tools xen-hypervisor xen-libs xen-tools --enablerepo=xcp-ng-testing
reboot

Versions:

• xen-*: 4.13.4-9.27.1.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~2 days.

The update is published. Thanks for your tests!

Blog post: https://xcp-ng.org/blog/2022/10/14/october-2022-security-update/

New security update candidates (xen, linux-firmware, edk2, xapi)

Xen and XAPI are being updated to mitigate some vulnerabilities:

• XSA-410: Two privileged users in two guest VMs, in collaboration, can crash the host or make it unresponsive.
• XSA-411: Correct a flaw in XSA-226 that allows DoS attacks from guest kernels to harm the whole system.
• XSA-413: The management service on the host can become unresponsive or crash by the means of an unauthenticated user on the management network.

In this release, there are also the following fixes and improvements:

• XAPI, issues resolved:

  • When you had an active VIF connected on dom0, you couldn't delete that VIF or the associated network, including VLAN.
  • When certificates contain the \r character, the xe host-get-server-certificate command can incorrectly output it.

• xen, linux-firmware, edk2:

  • Issues resolved:
    • Sometimes a VM freezes when a graphics-intensive application run
    • Sometimes guest UEFI firmware hangs
  • Improvements:
    • AMD microcode is updated to version 2022-09-30
    • Improvements to Xen diagnostics.

Test on XCP-ng 8.2

From an up to date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update edk2 linux-firmware xen-dom0-libs xen-dom0-tools xen-hypervisor xen-libs xen-tools forkexecd message-switch xapi-core xapi-tests xapi-xe xcp-rrdd xenopsd xenopsd-cli xenopsd-xc --enablerepo=xcp-ng-testing
reboot

Versions:

• edk2-20180522git4b8552d-1.4.6.xcpng8.2
• linux-firmware-20190314-5.xcpng8.2
• xen-*: 4.13.4-9.26.1.xcpng8.2
• forkexecd-1.18.1-1.1.xcpng8.2
• message-switch-1.23.2-3.2.xcpng8.2
• xapi-*: 1.249.26-2.1.xcpng8.2
• xcp-rrdd-1.33.0-6.1.xcpng8.2
• xenopsd-*: 0.150.12-1.2.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~2 days.

The update is published. Thanks for your tests!

Blog post: https://xcp-ng.org/blog/2022/10/05/october-2022-maintenance-update/

Update released. Thanks everyone for testing!

https://xcp-ng.org/blog/2022/05/16/may-2022-security-update/

You can also do this from a host's xsconsole with the menu:

• Resource Pool Configuration
  • Join a Resource Pool

New security and maintenance update candidate

A new XSA (Xen Security Advisory) was published on the 1st of July, and an update to Xen addresses it. We also publish other non-urgent updates which we had in the pipe for the next release.

---

Security updates

• xen-*:
  • Fix XSA-470 - An unprivileged guest can cause a hypervisor crash, causing a Denial of Service (DoS) of the entire host.

Maintenance updates

• http-nbd-transfer: moved some logs into debug to reduce log spam
• sm:
  • XOSTOR: avoid a rare migration error when the GC would run on our migration snapshot
  • Use GC daemon code for LINSTOR like other drivers (no changes for users)
    This updated package is already included in the refreshed 8.3 installation ISOs.
• xapi:
  • Fix remote syslog configuration being broken on updates
  • Fix several RRD (stats collection) issues and make the plugins more robust:
    • Cap Derive values within a certain range without making them NaN
    • Use a computed delay time for RRD loop to prevent gaps in metrics collection
    • Avoid duplicating datasources on plugin restore
    • Protect against a resource leak in the plugins
    • Avoid running out of mmap-ed pages in xcp-rrdd-cpu for large numbers of domains
    • Prevent exceptions from escaping and introducing gaps into metrics collection
    • Avoid missing metrics from new and destroyed domains
  • Prevent xapi concurrent calls during migration from indirectly make each other fail (already fixed in the refreshed ISOs)
  • Fix a deadlock in xenopsd due to atom nesting (already fixed in the refreshed ISOs)
• xo-lite: update to 0.12.0
  • [VM/system] Display system information in vm/system tab
  • [Host/system] Display system view information in host/system tab
  • [Host/Dashboard] Fix color of tag list (PR #8731)
  • [Table] add pagination on table (PR #8573)
  • [Pool/system] Display pool information in pool/system tab (PR #8660)
  • [VM/Dashboard] Display VM information in dashboard tab (PR #8529)
  • [Tab/Network] Updated side panel in tab network behavior for mobile view (PR #8688)
  • [Stats] Fix graphs that were sometimes not displayed or displayed incorrectly (PR #8722)

Optional packages:

• Alternate Driver: Updated to newer version.
  • broadcom-bnxt-en-alt: Update to version 1.10.3_232.0.155.5

Test on XCP-ng 8.3

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions:

• http-nbd-transfer: 1.6.0-1.xcpng8.3
• sm: 3.2.12-3.2.xcpng8.3
• xapi: 25.6.0-1.9.xcpng8.3
• xen: 4.17.5-13.2.xcpng8.3
• xo-lite: 0.12.0-1.xcpng8.3

Optional packages:

• Alternate drivers:
  • broadcom-bnxt-en-alt: 1.10.3_232.0.155.5-1.xcpng8.3

What to test

Normal use and anything else you want to test.

Test window before official release of the updates

~2 days.

New update candidates for you to test!

As we move closer to making XCP-ng 8.3 the new LTS release, taking over from XCP-ng 8.2.1, a first batch of updates is now available for user testing ahead of a future collective release. Details are provided below.

• amd-microcode: Packaging and versioning update, but no actual changes in microcodes.
• blktap: Fixes.
• broadcom-bnxt-en: bug fix: "Backport patch to fix GSO type for HW GRO packets on 5750X chips"
• busybox: backport fixes for CVE-2018-20679 and others.
• gpumon: No major changes. Rebuild for dependency reasons.
• guest-templates-json: Add templates for Windows server 2025 and Ubuntu 24.04. Remove "preview" from a few template names.
• host-upgrade-plugin: Update to version 3.0.1 which transitions to python 3 and brings some fixes.
• intel-i40e: Update to version 2.25.11
• interface-rename: Sync with XenServer, but this only changes packaging details.
• ipxe: Rebuild.
• jemalloc: Updated to version 5.3.0.
• lvm2: Fixes.
• microsemi-smartpqi: Update to version 2.1.30_031
• ncurses: Updated to upstream 6.4-20240309 revision. Some minor improvements.
• net-snmp: Rebase on XenServer version 5.7.2-52, which incorporates fixes for CVE-2022-24805 and CVE-2022-24809
• openssh: fix CVE-2025-26465
• qemu: Rebuilt with new version of jemalloc.
• qlogic-qla2xxx: Update to version 10.02.12.01_k
• sm: (Storage manager):
  • Logging improvements
  • Minor fixes regarding race conditions
  • Robustify snapshots and a few XAPI calls
  • Send message to XAPI if the garbage collection process doesn't have enough space.
  • Multipath configuration updates for some vendors.
  • Preliminary work for future XOSTOR support and over 2TB VM disks.
• sm-core-libs: fixes.
• vmss: Synchronization with the latest package from XenServer, which replaces the use of a deprecated dependency (imp module) by another.
• xapi:
  • Update to version 24.39.1
  • Many fixes and improvements, among which:
• Improve logging during live storage migration
  • Lengthy VDI migrations were mistakenly canceled upon reaching a 12-hour time limit.
  • Faster starting VMs when they have multiple VIFs or in conditions where the database is under heavy load.
  • High availability occasionally fails to process heartbeats in time when there are a lot of hosts in a pool. Consequently, the host that is unable to process heartbeats is flagged as offline and self-fences.
  • IPv6-related fixes.
  • Configurable threshold for updating last_active
  • Many under the hood improvements or fixes.
  • Added python dependencies for opentelemetry support: pyproject-rpm-macros, python-aiocontextvars, python-charset-normalizer, python-contextvars, python-deprecated, python-idna, python-immutables, python-opentelemetry, python-requests, python-typing-extensions, python-urllib3, python-wheel, python-wrapt, python3-setuptools.
• xcp-ng-release:
  • Sync with xenserver-release-8.4.0-14. (XCP-ng release number remains 8.3.0)
  • Update dependencies between systemd services.
  • Enable new RRDD plugins
• xcp-python-libs: Sync with XenServer, but this only changes packaging details.
• xen: Synchronization with package 4.17.5-6 from XenServer:
  • Fix migration of VMs from XCP-ng 8.2 to XCP-ng 8.3 when the guest is using BHI_DIS_S
  • Initial AMD Turin support
  • Fix dom0 pIRQ limit calculation
  • Fix emulation of BMI1/2 instructions
• xenserver-status-report: Minor update to add scsi disk provisioning mode in the output from this debug tool.
• xo-lite: As described in Xen Orchestra's blog, added VM creation page and form and Display vifs list in vm view and vifs information in side panel
• xs-opam-repo: Update to version 6.86.0 as a dependency for xapi
• xsconsole: Improved xenapi error handling & reintroduced Portable SR feature

Test on XCP-ng 8.3

From an up-to-date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

• amd-microcode: 20241121-1.1.xcpng8.3
• blktap: 3.55.4-1.1.xcpng8.3
• broadcom-bnxt-en: 1.10.2_223.0.183.0-2.xcpng8.3
• busybox: 1.22.1-7.xcpng8.3
• gpumon: 24.1.0-32.1.xcpng8.3
• guest-templates-json: 2.0.13-1.1.xcpng8.3
• host-upgrade-plugin: 3.0.1-1.xcpng8.3
• intel-i40e: 2.25.11-2.xcpng8.3
• interface-rename: 2.0.6-1.1.xcpng8.3
• ipxe: 20121005-1.0.7.xcpng8.3
• jemalloc: 5.3.0-1.xcpng8.3
• lvm2: 2.02.180-18.1.xcpng8.3
• microsemi-smartpqi: 2.1.30_031-1.xcpng8.3
• ncurses: 6.4-5.20240309.xcpng8.3
• net-snmp: 5.7.2-52.1.xcpng8.3
• openssh: 7.4p1-23.3.2.xcpng8.3
• pyproject-rpm-macros: 1.8.0-4.1.xcpng8.3
• python-aiocontextvars: 0.2.2-3.1.xcpng8.3
• python-charset-normalizer: 2.1.0-4.1.xcpng8.3
• python-contextvars: 2.4-3.1.xcpng8.3
• python-deprecated: 1.2.14-3.1.xcpng8.3
• python-idna: 3.3-4.xcpng8.3
• python-immutables: 0.19-5.xcpng8.3
• python-opentelemetry: 1.12.0-1
• python-requests: 2.28.1-4.1.xcpng8.3
• python-typing-extensions: 3.7.4.3-4.xcpng8.3
• python-urllib3: 1.26.15-4.1.xcpng8.3
• python-wheel: 0.31.1-5.el7_7
• python-wrapt: 1.14.0-4.xcpng8.3
• python3-setuptools: 40.4.1-1.0.1.xcpng8.3
• qemu: 4.2.1-5.2.12.1.xcpng8.3
• qlogic-qla2xxx: 10.02.12.01_k-1.xcpng8.3
• sm: 3.2.12-3.1.xcpng8.3
• sm-core-libs: 1.1.2-1.xcpng8.3
• vmss: 1.2.1-1.xcpng8.3
• xapi: 24.39.1-1.3.xcpng8.3
• xcp-ng-release: 8.3.0-30
• xcp-python-libs: 3.0.4-2.1.xcpng8.3
• xen: 4.17.5-6.1.xcpng8.3
• xenserver-status-report: 2.0.7-1.xcpng8.3
• xo-lite: 0.9.1-1.xcpng8.3
• xs-opam-repo: 6.86.0-1.1.xcpng8.3
• xsconsole: 11.0.8-1.1.xcpng8.3

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

None defined, but early feedback is always better than late feedback, which is in turn better than no feedback

Update published: https://xcp-ng.org/blog/2025/03/12/march-2025-maintenance-update-for-xcp-ng-8-3/

Thank you for the tests!

New update candidates for you to test!

A new batch of non-urgent updates is ready for user tests before a future collective release. Below are the details about these.

• edk2: Fix "Guest has not initialized the display (yet)." error.
• intel-igc: Fix a possible update issue due to a recent package name change.
• intel-microcode:
  • Latest Intel release microcode-20250211:
    • Security updates for: INTEL-SA-01166, INTEL-SA-01213, INTEL-SA-01139, INTEL-SA-01228
    • Updates for multiple functional issues
    • Upstream update drops files for older Sapphire Rapids steppings, we kept the previous versions
• netdata:
  • Update to Netdata v1.47.5
    • Fix dmesg warnings due to setuid+capabilities on xenstat plugin
    • Improve systemd service restart with a custom script waiting for Netdata to be fully up-and-running before stopping it.
• openssl: Add security fixes from upstream: CVE-2019-1547, CVE-2019-1551, CVE-2019-1563
• qemu: Backport a security fixe (CVE-2023-3354) for QEMU VNC server vulnerability
• r8125-module: Disable some performance functionalities in the driver (TXchecksum/SG/TSO) by default to workaround bugs on Windows Server 2022 guests. These can be re-enabled using 'ethtool -K eth0 tx on tso on sg on'
• sm:
  • Fix issue where users may encounter problems with HPE Nimble arrays: unable to mount iSCSI LUNs, non-functional or imperfect multipathing.
  • Regarding Large Block driver, always enable the VG on the emulated device.
  • Prevent corruption in the LINSTOR KV-store caused by a race condition between user calls and GC.
• systemtap: No functional changes. Fix compilation for compatibility with new gcc version.
• xapi: Re-enabled nested virtualization in 8.3, with the same limitations as in 8.2.
• xcp-emu-manager: No functional changes, Fix rpm spec file for new cmake version
• xcp-ng-release: Update cipher list in .curlrc
• xcp-ng-xapi-plugins:
  • Add new service plugin to manage (start, stop, ...) XCP-ng services
  • Add a new ipmitool plugin to get information from ipmitool that:
    • Returns information about sensors
    • Returns ipmi lan information
• xen:
  • Re-enabled nested virtualization in 8.3, with the same limitations as in 8.2.
  • Fix XSA-467 / CVE-2025-1713
• xo-lite: update to version 0.8.0. For more information you can read latests posts on the Xen Orchestra blog: 0.7.1 & 0.8.0.

Regarding the nested virtualization, Xen-Orchestra is not yet updated to allow this in 8.3, even if we see the option in the advanced tab of the VM. They are working on it and this will come in a future update.

To actually enable the nested possibility, it must be done on the command line with xe.

Once your VM is created:

xe vm-param-set platform:nested-virt=true uuid=<vm-uuid>

To check this:

xe vm-param-get param-name=platform uuid=<vm-uuid>

You should have a line similar to below, with the nested-virt: true parameter visible:

nested-virt: true; timeoffset: 0; exp-nested-hvm: true; secureboot: false; device-model: qemu-upstream-compat; viridian: true; nx: true; acpi: 1; apic: true; pae:true; hpet:true

To deactivate it:

xe vm-param-remove param-name=platform param-key=nested-virt uuid=<vm-uuid>

For XOSTOR users:

• See the description for sm above.

(Reminder: XOSTOR is still in beta stage on XCP-ng 8.3)

Optional packages:

• Alternate Driver: Updated to newer version.
  • atlantic-module-alt:
    • Update vendor version of driver 2.5.12
    • Disable LRO for reliable bridging per README
    • More information about drivers and current versions is on the drivers page: (https://github.com/xcp-ng/xcp/wiki/Drivers).

Test on XCP-ng 8.3

From an up-to-date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

• edk2: 20220801-1.7.7.2.xcpng8.3
• intel-igc: 5.10.226-2.xcpng8.3
• intel-microcode: 20250127-1.xcpng8.3
• netdata: 1.47.5-4.1.xcpng8.3
• openssl: 1.0.2k-26.2.xcpng8.3
• qemu: 4.2.1-5.2.10.1.xcpng8.3
• r8125-module: 9.012.04-2.xcpng8.3
• sm: 3.2.3-1.17.xcpng8.3
• systemtap: 4.0-5.1.xcpng8.3
• xapi: 24.19.2-1.10.xcpng8.3
• xcp-emu-manager: 1.2.0-2.xcpng8.3
• xcp-ng-release: 8.3.0-29
• xcp-ng-xapi-plugins: 1.12.0-1.xcpng8.3
• xen: 4.17.5-4.2.xcpng8.3
• xo-lite: 0.8.0-1.xcpng8.3

Optional packages:

• Alternate drivers:
  • atlantic-module-alt: 2.5.12-1.xcpng8.3

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~ 4/5 days

@dxym It is always important to follow the instructions given on the forum or on the blog. In both cases, we indicate that the hosts must be restarted.
This way, we are sure that the hosts will apply the changes coming from the updates, like here changes on Xen and the Intel microcode.

The updates have been published; thank you for testing them out.

https://xcp-ng.org/blog/2024/03/29/march-2024-maintenance-update/

New update candidates for you to test!

As you may know, we group non-urgent updates together for a collective release, in order not to cause unnecessary maintenance for our users.

The moment to release such a batch has come, so here they are, ready for user tests before the final release.

• openvswitch:
  • CVE-2023-1668: Correct a flaw when processing an IP packet with protocol 0.
  • CVE-2023-5366: Apply the patch for OpenFlow and neightbor discovery target with IPv6
  • CVE-2023-3966: Correct a vulnerabity with "crafted Geneve packets causing invalid memory accesses and potential denial of service".
• blktap:
  • Synced with XS82ECU1056:
    • Bugfix for time out on NFS tasks which can sometimes exceed the configured value.
    • Improve the error handling for some lost iSCSI connection.
• sm:
  • Support NFS servers which only offer NFSv4. The discovery process for such servers differs from that of servers which offer also NFSv3, so the SR driver had to be improved.
  • Synced with XS82ECU1056: bugfix on the path checker for DELL EqualLogic with iSCSI protocol
  • Synced with XS82ECU1060: bugfix for when a host is unable to log into all iSCSI portals because there are separate independent Target Portal Groups inside the IQN.
• util-linux: preparatory steps to support 4k-only disks.
• xapi: Bugfix in a testing framework.
• xcp-ng-pv-tools: Small fixes regarding VM stats reporting.
• xcp-ng-xapi-plugins: Add check_installed function in updater plugin to test installed packages. This is a prerequisite for the upcoming XOSTOR release.

Test on XCP-ng 8.2

From an up to date host:

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing blktap openvswitch sm-* util-linux xapi-* xcp-ng-pv-tools xcp-ng-xapi-plugins
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

• blktap: 3.37.4-3.1.xcpng8.2
• openvswitch: 2.5.3-2.3.12.2.xcpng8.2
• sm: 2.30.8-10.1.xcpng8.2
• util-linux: 2.23.2-52.1.xcpng8.2
• xapi: 1.249.32-2.2.xcpng8.2
• xcp-ng-pv-tools: 8.2.0-12.xcpng8.2
• xcp-ng-xapi-plugins: 1.10.0-1.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~1 week.

A new version of xo-lite for XCP-ng 8.3 has been released:

Version: xo-lite-0.2.0-1.xcpng8.3

You can update it like this:

yum update xo-lite

For more information about the changes between version 0.1.3 and 0.2.0, you can consult this link: https://github.com/vatesfr/xen-orchestra/blob/master/%40xen-orchestra/lite/CHANGELOG.md