Early Access channel updates
The following features, preview features, improvements, and bug fixes are available in the Early Access update channel. Some of the latest listed entries might not be available in the Normal channel yet.
Note:
This article doesn’t list all changes in the Early Access channel, just a subset. For the full and up-to-date set of changes available, see the information in the XenCenter® Updates view.
File based licensing system EOL notification
License Activation Service (LAS) is the next generation technology for product activations across the suite of Citrix® products.
Note:
File based licensing system, traditionally used for activating various on-premises components, will be End of Life (EOL) on April 15, 2026.
LAS will be the only way to activate and license Citrix on-premises components after April 15, 2026. To remain supported, your XenServer® deployment must be on a LAS compatible version.
Requirement
Should you have questions or concerns, contact Customer Care. Citrix may limit or suspend your Citrix Maintenance for non-compliance with these requirements without liability in addition to any other remedies Citrix may have at law or equity. These requirements don’t apply where prohibited by law or regulation.
Apr 16, 2026
Checksum: 2c50b5593077d548d4c7546d8f01083c5b7c42fb1e2b44deca954641ff1ac187
These updates include fixes for the following issues:
- A recent change caused GFS2 and XFS datapaths to use an increased amount of Control Domain memory.
- If a scan on an LVM-based Storage Repository finds a virtual disk in the metadata that is not known to the toolstack it will (re)introduce it. In the event the VDI is not still present on the SR this (re)introduction will encounter an error.
- BIOS boot VMs may fail to network boot if a vlan priority tag is set in the DHCP response.
Apr 6, 2026
Checksum: 25c82a53636a5344189fe29c2fc7c950ecf96cb01bc8cccd4cd3af6605dfedae
These updates include the following improvements:
- Update OpenSSL to v3.5.5
- Improves the ability of a pool using GFS2 SRs to fence specific hosts which are having networking issues, rather than allowing them to negatively affect the whole cluster.
- Updates the Secure Boot Forbidden Signature Database (DBX) provided to new VMs to the latest published version.
- Add broadcom-mpi3mr driver.
- When using a VM with disks on a GFS2 or XFS SR, a serial number is now supplied.
These updates include fixes for the following issues:
- When the License Server is unreachable while a XenServer host starts up, the host may not become enabled.
- Certain records (e.g. PCI data) are left behind in the pool database after ejecting a host from a pool.
- A toolstack restart after an update synchronization may block application of updates until another synchronization is performed.
- When installing a UEFI VM from a local DVD, the VM may hang at the firmware screen before starting installation.
- In rare circumstances, the device model can fail due to a problem managing the Xen map cache.
- After upgrading an HA-enabled GFS2 pool from an older XenServer release, HA may not be able to be re-enabled.
- When using an LIO iSCSI target, multipath failover may be delayed.
Mar 17, 2026
Checksum: 0e3647a4f77c8f52e9df18776988a3df99809565d3231cbdc7b6b68a79710a76
These updates include security fixes. For more information, see the Security Bulletin.
Mar 11, 2026
Checksum: eab08fa137afaa1f005206692ca767087817f9e475cd99aa7836cc07ba1b53c3
These updates include the following improvements:
- Add qlogic-qla2xxx driver.
- Optimizations to VM migration process to reduce migration time for heavily loaded VMs on systems using AMD processors.
These updates include upstream code changes for the following issues:
- CVE-2024-12243
- CVE-2025-32990
- CVE-2025-32988
- CVE-2025-32989
- CVE-2025-6395
- CVE-2025-9820
- CVE-2025-14831
- CVE-2026-1584
Mar 2, 2026
Checksum: fcdc08d17f088b98e6326f8b1173b15803b5135e5759c3f34c3f631157607358
These updates contain foundational changes.
Feb 23, 2026
Checksum: bb6f87ab348e9bb0ce519aac852952f13bf9e59231f67447d41511a77c69dc02
These updates include fixes for the following issues:
- In some situations, a VM export operation can fail to complete.
- A VDI copy operation initiated by a user with the “VM Power Admin” role may incorrectly result in a permissions error.