What’s new in Citrix Virtual Apps and Desktops 7 1811


This article describes information published with an earlier version of Citrix Virtual Apps and Desktops. For information on the current release, see the Citrix Virtual Apps and Desktops documentation.

About this release

This Citrix Virtual Apps and Desktops release includes new versions of the Windows Virtual Delivery Agents (VDAs) and new versions of several core components. You can:

  • Install or upgrade a Site

    Use the ISO for this release to install or upgrade core components and VDAs. Installing or upgrading to the latest version allows you to use all the latest features.

  • Install or upgrade VDAs in an existing Site

    If you have a deployment, and aren’t ready to upgrade your core components, you can still use several of the latest HDX features by installing (or upgrading to) a new VDA. Upgrading only the VDAs is often helpful when you want to test enhancements in a non-production environment.

    After upgrading your VDAs to this version (from version 7.9 or later), you do not need to update the machine catalog’s functional level. The 7.9 (or newer) value remains the default functional level, and is valid for this release. For more information, see VDA versions and functional levels.

For instructions:

Citrix Virtual Apps and Desktops 7 1811

This product release includes the following new, modified, and enhanced features.


New product names and version numbers were introduced in Citrix Virtual Apps and Desktops 7 1808. That information is retained in this article for reference. For more information, see New product names at the end of this article.

Delivery Groups: New Studio interface for creating machine restart schedules

In earlier releases, you used Studio to create a restart schedule for machines in a Delivery Group. To create multiple schedules, you used PowerShell cmdlets. Now, the updated Studio interface enables you to create and manage one or more restart schedules. For details, see Create and manage restart schedules for machines in a Delivery Group.

Citrix Scout: AOT traces on network shares

In earlier releases, Always On Tracking (AOT) traces that were saved to network shares were not included in collected diagnostics. Now, those traces are included. For details, see Citrix Scout.

Machine catalogs: New functional level

A new machine catalog functional level has been added. The default remains 7.9 (or newer). Keep that default, unless all of the VDAs in the catalog are version 1811 or later supported versions. For more information, see VDA versions and functional levels.

Machine Creation Services (MCS) provisioning to AWS dedicated hosts

This release adds support for Machine Creation Services (MCS) provisioning to AWS dedicated hosts. An administrator can create a catalog of machines with host tenancy defined through PowerShell. See AWS host tenancy support.

Support for AWS IAM roles

Citrix Studio supports the ability to configure an AWS Hosting Connection to use IAM roles by entering role_based_auth as the value for the Access Key and Secret Key fields. An IAM Role defining the policy and permissions required by Citrix is required when attaching to AWS hosted Delivery Controllers or Cloud Connectors instances.

Citrix Director

Logon Performance - Profile Drilldown

The Logon Duration panel in the User Details pages now includes information on the Profile load phase drill down of the logon process. Profile Drilldown provides useful information about user profiles for the current session that can help administrators troubleshoot high profile load issues. A tool tip with the following user profiles information is displayed:

  • Number of files
  • Profile size
  • Number of large files

A detailed drill down provides information about the individual folders, their size, and the number of files. This feature is available on Delivery Controller version 7 1811 or later and VDAs 1811 or later. For more information, see Diagnose user logon issues.

Microsoft RDS license health

Director now displays the Microsoft RDS (Remote Desktop Services) license status on the Machine Details panel in the Machine Details and the User Details page for Server OS machines. An appropriate message is displayed for the license status. You can hover over the info icon to see further details. For more information, see the Microsoft RDS license health section in Troubleshooting Machines.

Hypervisor alerts monitoring

Director now displays alerts to monitor hypervisor health. Alerts from Citrix Hypervisor and VMware vSphere are supported. Hypervisor alerts help monitor the following states/parameters:

  • CPU usage
  • Memory usage
  • Network usage
  • Hypervisor connection unavailable
  • Disk usage (vSphere only)
  • Host connection or power state (vSphere only)

Hypervisor alerts monitoring is available for Premium licensed Sites. This feature requires Delivery Controller version 7 1811 or later. If you are using an older version of Director with the latest version of the Site, only the hypervisor alert count is displayed. To view the alerts, upgrade Director. For more information, see the Hypervisor alerts monitoring section in Alerts and Notifications.

Key RTOP Data display

Director now displays key RTOP (RealTime Optimization Pack) 2.6 data in the HDX panel of the User Details page. This helps monitor the following status of the RTOP pack for each user:

  • Status (optimized, fallback)
  • RTC version
  • RTME version on user device
  • Packet loss metrics

This feature requires Delivery Controller(s) 7 1811 or later, and VDA 1808 or later.

Application Probing access through Citrix Gateway

You can now use Director’s Application probing feature to probe Citrix Virtual Apps from anywhere. You can use this flexibility to run the Citrix Application Probe Agent on end point machines that are hosted in a different network. You can access the Site you want to probe through the Citrix Gateway. To do this, while configuring the Citrix Application Probe Agent, type the Citrix Gateway URL in the StoreFront URL field. Citrix Gateway automatically routes the request to the corresponding Site StoreFront URL. This feature is available for Citrix Gateway version 12.1 or later, and Delivery Controller(s) 1811 or later. For more information about Application probing setup, see Application probing.

Virtual Delivery Agents (VDAs) 1811

Version 1811 of the VDA for Windows Server OS and the VDA for Windows Desktop OS includes the following enhancements (in addition to the VDA installation and upgrade items listed above):

Graphics status indicator

The Graphics status indicator policy has been updated to replace the display lossless indicator policy.

This setting configures the graphics status indicator to run in the user session. It allows you to see details about the graphics mode in use, including graphics provider, encoder, hardware encoding, image quality, progressive display status, and lossless text.

By default, the Graphics status policy is disabled. It replaces the Display lossless indicator policy of earlier releases, which was enabled by default.

For more information, see Graphics status indicator.

DPI matching on Windows 10

DPI matching allows the Windows 10 desktop session to match the DPI of the endpoint when using Citrix Workspace app for Windows.


This setting is off by default. DPI matching is enabled whenever the DPI scaling setting is set to No. When using VM hosted apps, the DPI is set to 100% by default.

Client drive mapping performance improvements

Client drive mapping now supports the transfer of data from the host to the client as a stream. This enhancement ensures that the file transfer adapts to the changing network throughput conditions. It also uses any available extra bandwidth to scale up the data transfer rate. By default, this feature is enabled. These improvements require Citrix Workspace app for Windows 1811 or later.

To disable this feature, set the following registry key and then restart the server:


Name: DisableFullStreamWrite



0x01 - disables

0 or delete- enables

HDX adaptive throughput

HDX adaptive throughput intelligently fine-tunes the peak throughput of the ICA session by adjusting output buffers. The number of output buffers is initially set at a high value. This high value allows data to be transmitted to the client more quickly and efficiently, especially in high latency networks. Providing better interactivity, faster file transfers, smoother video playback, higher framerate and resolution results in an enhanced user experience.

Session interactivity is constantly measured to determine whether any data streams within the ICA session are adversely affecting interactivity. If that occurs, the throughput is decreased to reduce the impact of the large data stream on the session and allow interactivity to recover.

This feature is supported only on Citrix Workspace app 1811 for Windows or later.


HDX adaptive throughput changes the way that output buffers are set by moving this mechanism from the client to the VDA, and no manual configuration is necessary. This new behavior requires both VDA version 1811 or later and Citrix Workspace app 1811 for Windows or later. It is not available in deployments with older versions of the VDA or of the client.

Virtual display layout

This feature lets you define a virtual monitor layout that applies to the remote desktop and to virtually split a single client monitor into up to eight monitors on the remote desktop. You can configure the virtual monitors on the “Monitor Layout” tab in the desktop viewer. There, you can draw horizontal or vertical lines to separate the screen into virtual monitors; the screen is split according to specified percentages of the client monitor resolution.

You can set a DPI for the virtual monitors that will be used for DPI scaling or DPI matching. After applying a virtual monitor layout, resize or reconnect the session.

This configuration applies to all subsequent applicable connections from this client, only to full screen single monitor desktop sessions, and does not affect any published applications.

Citrix Licensing 11.15

Citrix Licensing 11.15 contains new features and fixed and known issues.

Federated Authentication Service logon evidence support

The Federated Authentication Service (FAS) is now able to receive logon evidence passed to it from Citrix Gateway and StoreFront. The evidence can be validated to ensure that it was issued by a trusted Identity Provider (IdP). A new FAS Assertion SDK is provided to support this feature. For more information about the logon evidence feature, see Citrix Federated Authentication Service Logon Evidence Overview.

New product names

If you’ve been a Citrix customer or partner for a while, you’ll notice new names in our products and in this product documentation. If you are new to this Citrix product, you might see different names for a product or component.

The new product and component names stem from the expanding Citrix portfolio and cloud strategy. Articles in this product documentation use the following names.

  • Citrix Virtual Apps and Desktops: Citrix Virtual Apps and Desktops offers a virtual app and desktop solution, provided as a cloud service and as an on-premises product, giving employees the freedom to work from anywhere on any device while cutting IT costs. Deliver Windows, Linux, web, and SaaS applications or full virtual desktops from any cloud: public, on premises or hybrid. Virtual Apps and Desktops was formerly XenApp and XenDesktop.
  • Citrix Workspace app: The Citrix Workspace app incorporates existing Citrix Receiver technology as well as the other Citrix Workspace client technologies. It has been enhanced to deliver additional capabilities to provide end users with a unified, contextual experience where they can interact with all the work apps, files, and devices they need to do their best work. For more information, see this blog post.
  • Citrix SD-WAN: NetScaler SD-WAN, a crucial technology for our customers and partners transforming their branch networks and WANs with cloud technology, is now Citrix SD-WAN.
  • Citrix Secure Web Gateway: As the Citrix Networking portfolio expands, we’re proud to offer our robust Citrix Secure Web Gateway service, previously known as NetScaler Secure Web Gateway.
  • Citrix Gateway: Our robust NetScaler Unified Gateway, which allows secure, contextual access to the apps and data you need to do your best work, is now Citrix Gateway.
  • Citrix Content Collaboration and Citrix Files for Windows: The advanced access, collaboration, workflows, rights management, and integration features of ShareFile are now available in the Citrix Content Collaboration component set in our secure, contextual, integrated Citrix Workspace. Citrix Files for Windows allows you to access your Content Collaboration files directly through a mapped drive, providing a native Windows Explorer experience.
  • Citrix Hypervisor: The technology from XenServer for virtualization infrastructure, based on the XenProject hypervisor, is now Citrix Hypervisor.

Here’s a quick recap:

Is Was
Citrix Virtual Apps and Desktops XenApp and XenDesktop
Citrix Workspace app Incorporates Citrix Receiver and extensive enhancements
Citrix SD-WAN NetScaler SD-WAN
Citrix Secure Web Gateway NetScaler Secure Web Gateway
Citrix Gateway NetScaler Unified Gateway
Citrix Content Collaboration ShareFile
Citrix Files for Windows ShareFile Desktop App, ShareFile Sync, ShareFile Drive Mapper
Citrix Hypervisor XenServer
Citrix Provisioning Citrix Provisioning Services

Implementing this transition in our products and their documentation is an ongoing process.

  • In-product content might still contain former names. For example, you might see instances of earlier names in console text, messages, and directory/file names.
  • It is possible that some items (such as commands and MSIs) might continue to retain their former names to prevent breaking existing customer scripts.
  • Related product documentation and other resources (such as videos and blog posts) that are linked from this product’s documentation might still contain former names.
  • For Citrix Hypervisor: The new name will be used on the Citrix website and in informational product materials from September 2018. You will also see the new name in the administrator consoles of some Citrix products, such as Citrix Virtual Apps and Desktops. The XenServer product release and technical documentation materials will continue to use XenServer 7.x until early 2019.

Your patience during this transition is appreciated. For more detail about our new names, see https://www.citrix.com/about/citrix-product-guide/.

New product and component version numbers

In this release, product and component version numbers are displayed in the format: 7 YYMM.c.m.b.

  • YYMM = Year and month when the product or component released. For example, a release in September 2018 appears as 1809.
  • c = Citrix Cloud release number for the month.
  • m = Maintenance version (if applicable).
  • b = Build number. This field is shown only on the About page of the product, and in the OS’s feature for removing or changing programs.

For example, Citrix Virtual Apps and Desktops 7 1809.1.0 indicates that the product released in September 2018, is associated with Citrix Cloud release 1 in that month, and is not a maintenance version. Some displays show only the version’s year and month: for example Citrix Virtual Apps and Desktops 7 1809.

In earlier releases of this product (XenApp and XenDesktop 7.18 and earlier), version numbers were displayed in the format: 7.version, where the version value incremented by one for each release. For example, the release following 7.17 was 7.18. Those earlier releases will not be updated with the new numbering format.