Cumulative Update 4 (CU4)

Jun 19, 2017

Release date: June 2017

Cumulative Update 4 (CU4) is the latest Cumulative Update to the XenApp and XenDesktop 7.6 Long Term Service Release (LTSR). CU4 provides updates to 10 baseline components of the original 7.6 LTSR.

Issues fixed since XenApp and XenDesktop 7.6 LTSR CU3

Known issues in this release

Downloads

Download LTSR CU4 (XenApp)

Download LTSR CU4 (XenDesktop)

New deployments

How do I deploy CU4 from scratch?

You can set up a brand-new XenApp or XenDesktop environment based on CU4 - using the CU4 metainstaller.* Before you do that, we recommend that you familiarize yourself with the product:

Peruse the XenApp and XenDesktop 7.6 Long Term Service Release documentation and pay close attention to the Technical Overview, New Deployments, and Security sections before you start planning your deployment. Make sure your setup meets the system requirements for all components. Follow New Deployments for deployment instructions.

* Note: Provisioning Services and Session Recording are available as separate downloads and installers.

Existing deployments

What do I update?

CU4 provides updates to 10 baseline components of 7.6 LTSR. Remember: Citrix recommends that you update all LTSR components of your deployment to CU4. For example: If Provisioning Services is part of your LTSR deployment, update the Provisioning Services component to CU4. If Provisioning Services is not part of your deployment, you do not need to install or update it.

Since the 7.6 LTSR release, we have added a metainstaller that lets you update the existing components of your LTSR environment from a unified interface. Following the Upgrade instructions, use the metainstaller to update the LTSR components of your deployment. 

Note

The following information is specific to the CU4 release. For the equivalent information for the LTSR base release, CU1, CU2, or CU3, see the respective documentation.

LTSR CU4 compatible components

The following components are recommended for use in 7.6 LTSR CU4 environments. These components are not eligible for the LTSR benefits (extended lifecycle and fix-only cumulative updates). Citrix might ask you to upgrade to a newer version of these components within your 7.6 LTSR environments.

Note about Windows 10: Regular support for Windows 10 is available through the Current Release path. Windows 10 does not get the full set of 7.6 LTSR benefits. For deployments that include Windows 10 machines, Citrix recommends that you use the Current Release Version 7.9 or later of the VDA for Desktop OS and of Provisioning Services.

For more information, see Adding Windows 10 Compatibility to XenApp and XenDesktop 7.6 LTSR and the XenApp and XenDesktop Servicing Options (LTSR) FAQ.

Compatible versions of Citrix Receiver

For ease of maintenance, and to ensure optimal performance, Citrix recommends that you upgrade to the latest version of Citrix Receiver any time it becomes available. The latest versions are available for download at https://www.citrix.com/downloads/citrix-receiver.html. For your convenience, consider subscribing to the Citrix Receiver RSS feed to receive a notification when a new version of Citrix Receiver becomes available.

Note that Citrix Receiver is not eligible for the XenApp and XenDesktop LTSR benefits (extended lifecycle and fix-only cumulative updates). Citrix may ask you to upgrade to a newer version of Citrix Receiver within your 7.6 LSTR environments. In the case of Citrix Receiver for Windows, Citrix has announced a special LTSR program. More information on that program is available on the Lifecycle Milestones for Citrix Receiver page.

Specifically, LTSR supports the following versions of Citrix Receiver and all later versions:

LTSR notable exclusions

The following features, components, and platforms are not eligible for LTSR lifecycle milestones and benefits. Specifically, cumulative updates and extended lifecycle benefits are excluded. Updates to excluded features and components will be available through regular current releases.

* Citrix reserves the right to update platform support based on third party vendors’ lifecycle milestones.

Install and upgrade analytics

When you use the full-product installer to deploy or upgrade XenApp or XenDesktop components, anonymous information about the installation process is gathered and stored on the machine where you are installing/upgrading the component. This data is used to help Citrix improve its customers’ installation experiences. For more information, see http://more.citrix.com/XD-INSTALLER.

XenApp 6.5 migration

The XenApp 6.5 migration process helps you more efficiently and quickly transition from a XenApp 6.5 farm to a Site running XenApp 7.6 (or a later supported release). This is helpful in deployments that contain large numbers of applications and Citrix group policies, lowering the risk of inadvertently introducing errors when manually moving applications and Citrix group policies to the new XenApp Site.

After you install the XenApp 7.6 core components and create a Site, the migration process follows this sequence:

• Run the XenApp 7.6 installer on each XenApp 6.5 worker, which automatically upgrades it to a new Virtual Delivery Agent for Windows Server OS for use in the new Site.
• Run PowerShell export cmdlets on a XenApp 6.5 controller, which exports application and Citrix policy settings to XML files.
• Edit the XML files, if desired, to refine what you want to import to the new Site. By tailoring the files, you can import policy and application settings into your XenApp 7.6 Site in stages: some now and others later.
• Run PowerShell import cmdlets on the new XenApp 7.6 Controller, which import settings from the XML files to the new XenApp Site.
• Reconfigure the new Site as needed, and then test it.

For more information, see Migrate XenApp 6.x.