Citrix Workspace app for Mac is compatible with all currently supported versions of the following Citrix products. For information about the Citrix product lifecycle, and to find out when Citrix stops supporting specific versions of products, see the Citrix Product Lifecycle Matrix.
Symptoms or Error
Could not connect to server after upgrading Citrix Workspace App for Windows to version 1904.
After clicking on the desired resource, the message reads: Citrix Workspace / Unable to connect to the server. Contact your system administrator with the following error: SSL Error 4: The operation completed successfully. The other message names the Resource with the common message: (Unknown client error 0).
Solution
To resolve this issue:
Option 1 (recommended): Update the Gateway with a compatible cipher suite (See Cryptographic Update for supported cipher suites), following the steps outlined in: CTX235509 Option 2: Note: This should be considered a short-term workaround, since previous versions of CWA contains a security vulnerability; see CTX251986 for details Uninstall Citrix Workspace app 1904 (See Control Panel --> Programs --> Uninstall a Program ) Download and install Citrix Workspace app 1903 from here: Download link Problem Cause
No compatible cipher suite on the Gateway vServer. There is a Cryptographic update for Citrix Workspace app for Windows release 1904 (CWA 1904). All support for TLS_RSA_ cipher suites has been removed. This TLS_RSA_ cipher suite should be removed from the gateway and replaced with a compatible cipher suite. Until the gateway is updated with compatible cipher suites, no connections will be successful from clients using CWA 1904.
https://docs.citrix.com/en-us/citrix-workspace-app-for-windows/about.html Text from the 'About this update': 'In this release, the TLS_RSA_ cipher suites have been removed entirely. Instead, this release supports the advanced TLS_ECDHE_RSA_ cipher suites. If your environment is not configured with the TLS_ECDHE_RSA_ cipher suites, client launches are not supported due to weak ciphers.' Overview of the Crypto Kit updates in Citrix Workspace 1904 - includes Expected failure scenarios and edge cases - https://support.citrix.com/article/CTX250104 This CTX article explains the basics: Configuring Cipher suite order on the NetScaler Gateway for Application or Desktop Launch Failures with TLS or DTLS due to invalid cipher suites - https://support.citrix.com/article/CTX235509 This blog article has instructions that might be helpful for a customer that needs to update the Netscaler Gateway with a compatible cipher suite: Scoring an A+ at SSLlabs.com with Citrix NetScaler – 2016 update - https://www.citrix.com/blogs/2016/06/09/scoring-an-a-at-ssllabs-com-with-citrix-netscaler-2016-update/ Additional ResourcesRelease notes for CWA 1904 - https://docs.citrix.com/en-us/citrix-workspace-app-for-windows/about.htmlOverview of the Crypto Kit updates in Citrix Workspace 1904 - https://support.citrix.com/article/CTX250104
Configuring Cipher suite order on the NetScaler Gateway for Application or Desktop Launch Failures with TLS or DTLS due to invalid cipher suites - https://support.citrix.com/article/CTX235509
Scoring an A+ at SSLlabs.com with Citrix NetScaler – 2016 update - https://www.citrix.com/blogs/2016/06/09/scoring-an-a-at-ssllabs-com-with-citrix-netscaler-2016-update/
Citrix have released a new version of Citrix Virtual Apps and Desktop 7 1903 which is now available for download. Mozilla firefox 33 version download.
Citrix Virtual Apps (former name: XenApp) Citrix Virtual Desktop (former name: XenDesktop)
Microsoft Windows Server 2019 & Windows 10 1809 is supported with this release.
Another great thing is that now “infrastructure components for Citrix” can be installed on Microsoft Windows ServerCore, which means a minimum OS and only install what is required, no GUI just raw performance, something which a lot of service providers, customers are going to like. This is important for scalability and automation and having best TCO running a Citrix infrastructure. Citrix director & delivery controller now works and is supported on ServerCore (WS2012r2/WS2016/WS2019).
Citrix raises the bar of for user experience and new product release of following technologies:
What’s new in Citrix Virtual Apps and Desktop 7 1903
This product release includes the following new, modified, and enhanced features.
Note:
New product names and version numbers were introduced in Citrix Virtual Apps and Desktops 7 1803. That information is retained in this article for reference.
Install and upgrade: Addition of Citrix Files for Outlook component to VDA installation
Citrix Files for Outlook allows you to bypass file size restrictions and add security to your attachments or emails by sending them through Citrix Files. You can provide a secure file upload request for co-workers, customers, and partners directly in your email.
Be notified whenever someone accesses a file or sends you a file so you are always aware of what is going and can take action. You can also set different security and access levels on a file-by-file basis for greater control.
For more information, see Citrix Files for Outlook. For installation information, see Install VDAs, and Install using the command line.
Install and upgrade: Removal of Framehawk feature from VDA installers
You can no longer enable Framehawk when installing a VDA. Framehawk is now unsupported. Instead, use Thinwire with adaptive transport enabled.
Citrix policy settings for Framehawk are not valid as of this release. If you enabled Framehawk in an earlier release, ensure that the UDP ports used only by Framehawk are closed in your firewall.
Citrix Scout
For details, see Citrix Scout.
Call Home
Citrix Call Home now collects installation and upgrade logs. For details, see Citrix Insight Services.
Machine Creation Services (MCS) storage optimization
This release includes updates to the Citrix Provisioning storage approach using Machine Creation Services (MCS) storage optimization. For more information, see Create machine catalogs.
Citrix Director 1903Citrix Profile Management Duration in Profile Load
Director now includes profile processing duration in the Profile Load bar of the Logon duration chart. This is the duration Citrix Profile Management takes to process user profiles. This information helps administrators to troubleshoot high profile load durations with greater accuracy. For more information, see Profile Load.
Minor user interface change
The user interface in the Trends page contains some minor changes to the appearance – for example the hover text appears in a higher contrast in the details list. Similar changes will be rolled out over coming releases to improve the user experience and rendering speed.
New features guide
Director now has an in-product guide that gives an insight into the new features released in the current version of Director. The quick overview coupled with appropriate in-product messages helps you understand what’s new in the product.
Citrix Probe Agent TLS 1.2 compliance
Citrix Probe Agent now supports TLS (Transport Layer Security) 1.2.
Virtual Delivery Agents (VDAs) 1903 for Windows
Version 1903 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):
Docking and Undocking for Remote PC Access
We support docking and undocking for Remote PC Access devices. For more information, see Technical requirements and considerations.
Support for Microsoft Surface Pro and Surface Book pens with Windows Ink-based applications
We support standard pen functionality on client devices using Window 10 and a minimum of Citrix Workspace app for Windows version 1902. Support includes pointing, erasing, pen pressure, Bluetooth signals, and other features depending on the operating system firmware and pen model.
For more information, see Microsoft Surface Pro and Surface Book pens.
DPI matching on Windows Server 2016 and Windows Server 2019
DPI matching allows the Windows Server 2016 or Windows Server 2019 desktop session to match the DPI of the endpoint when using Citrix Workspace app for Windows.
Note:
This setting is off by default. DPI matching is enabled whenever the DPI scaling setting is set to No. When using seamless apps, the DPI is set to 100% by default.
Support for copy and paste between sessions and clients
Using Citrix Virtual Apps and Desktops 1903 and the latest version of Citrix Workspace app for Windows, users can now copy and paste files, directories, or groups of files or directories between a session and a local client. Copy and paste functions work by using the right-click menu or keyboard shortcuts.
For more information on configuring copy and paste, see Copy and paste between session and client.
Limitations
Postscript simulation and full font embedding
Users can now control image compression and Font embedding using registry keys. The new options appear in the PDF Universal Print Driver UI.
To enable or disable Enable Postscript Simulation, set the following registry key:
HKEY_LOCAL_MACHINESOFTWARECITRIXUniversalPrintDriversPDF
Name: EnablePostscriptSimulation
Type: REG_DWORD
Value :
0 – Disable
1 – Enable
To enable or disable Full font embedding (larger file size), set the following registry key:
HKEY_LOCAL_MACHINESOFTWARECITRIXUniversalPrintDriversPDF
Name: EnableFullFontEmbedding
Important:
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. For such older deployments, see Optimize HDX bandwidth over high latency connections for information about manual output buffer configuration. Type: REG_DWORD
Value :
0 – Disable
1 – Enable
Note:
If users have applied custom settings, they are honored. If users have changed these settings, the registry values will not be applied.
Note:
Standard fonts and Licensed fonts are checked when Full font embedding is checked. They are also controlled by the PDF optimization default policy. If there are conflicts, the registry settings are honored
Virtual Delivery Agents (VDAs) 1903 for Linux
Version 1903 of the Linux VDA includes the following new features and enhancements:
Support for Ubuntu 18.04
Starting with this release, Citrix added Ubuntu 18.04 as a supported distribution. For more information, see Easy install and Install Linux Virtual Delivery Agent for Ubuntu.
Support for fast smart card
By default, fast smart card is enabled on the Linux VDA. Fast smart card is an improvement over the existing HDX PC/SC-based smart card redirection. It improves performance when smart cards are used in high-latency WAN situations. For more information, see Pass-through authentication by using smart cards.
ICA RTT metrics for Linux sessions are available in Citrix Director
ICA Round Trip Time (RTT) is the elapsed time from when you press a key until the response appears on the endpoint. To obtain the ICA RTT metric of a Linux session, find the session in Citrix Director and check the Session Details view (see the following screenshot).
To use this feature, you must:
Citrix Provisioning 1903
This release of Citrix Provisioning contains numerous fixes and enhancements, and no new features.
See the fixed and known issues for additional information about this release of Citrix Provisioning.
Citrix Storefront 1903
StoreFront 1903 includes the following new features. For information about bug fixes, see Fixed issues.
Removal of classic user experience
The classic user experience (“green bubbles”) was announced as deprecated at XenApp and Xen Desktop 7.15 LTSR, and it is no longer supported in StoreFront 1903 (Citrix Virtual Apps and Desktops 7 1903). When you upgrade to StoreFront 1903, stores which were using the classic experience are changed to the unified experience. The unified experience delivers a centrally managed HTML5 user experience to the web and to native Citrix Workspace apps (formerly Citrix Receiver), together with customization and featured app groups management. For more information about the unified experience, see Unified user experience.
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’re 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.
Implementing this transition in our products and their documentation is an ongoing process.
Your patience during this transition is appreciated. For more detail about our new names, see https://www.citrix.com/about/citrix-product-guide/.
Management console and documentation product name changes
Text in the StoreFront management console has been updated to the new Citrix product names. References to removed functionality and products, which are described in the Citrix Virtual Apps and Desktops Deprecation article, are also removed. For example, references to “NetScaler Gateway” are now “Citrix Gateway”, and references to “Citrix Receiver” are now “Citrix Workspace app”. Please note that the term “Citrix Receiver for Web site” is unchanged, and still refers to a website used as an app store.
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The StoreFront product documentation is updated to match text in the StoreFront management console, and the new Citrix product names.
Deprecation of TLS versions
The deprecation of StoreFront support for TLS 1.0 and 1.1 protocols was announced at StoreFront 3.14 and XenApp and XenDesktop 7.17, see CTX232266.
Customers can now also upgrade to Citrix Workspace app, which supports the TLS 1.2 protocol.
At StoreFront 1903, Citrix further recommends disabling TLS 1.0 and 1.1 support in the Web Server hosting StoreFront. You should enforce this via group policy objects, which create the necessary registry settings on the StoreFront server to disable older protocols like TLS 1.0 and TLS 1.1. See also the Microsoft TLS/SSL Settingsreference topic.
Citrix Session Recording 1903
This release includes the following new features and enhancements:
Citrix Applayering 1902
This release includes the following features and improvements.
Note:
We do not yet officially support Windows Server 2019 as an OS Layer.
Labs features in this releaseCitrix Workspace 1903 Windows Download
Labs features are previews of potential functionality for future releases. While a feature is in Labs, you should notuse it in production. There is no guarantee that Labs feature will remain in the product, nor that the feature will work as originally designed if and when they are released.
The Labs features available in this release include the following:
To use a Labs feature, you need to enable the feature first.
Supported platforms
For information about platforms supported by Citrix App Layering, see System requirements.
Upgrade path
You can upgrade from any previous Citrix App Layering 4.x version to the current release.
Citrix Workspace App 1903 for WindowsWhat’s new in 1903Updated framework
Updated the Citrix Secure Browser engine to include the latest security updates, to ensure better security and performance when accessing secure SaaS apps.
Citrix Workspace App 1903 for MacCitrix Casting updates
Citrix Casting has been updated throughout with new features and enhancements. Adium sipe plugin mac download. For more information on Citrix Casting, see Citrix Casting.
Citrix Workspace App 1903 for LinuxWhat’s new in 1903Cryptographic update
This feature is an important change to the secure communication protocol. Cipher suites with the prefix TLS_RSA_ do not offer forward secrecy and are considered weak. These cipher suites were deprecated in Citrix Receiver version 13.10 with an option for backward compatibility.
In this release, the TLS_RSA_ cipher suites have been removed entirely. Instead, this release supports the advanced TLS_ECDHE_RSA_ cipher suites. If your environment is not configured with the TLS_ECDHE_RSA_ cipher suites, client launches are not supported due to weak ciphers. This release supports 1536-bit RSA keys for client authentication.
The following advanced cipher suites are supported:
For more information see, Configuring cipher suites.
Note:
From version 1903 and later, DTLS is supported from Citrix Gateway 12.1 and later. For information on DTLS supported cipher suites for Citrix Gateway, see Support for DTLS protocol
Bloomberg audio redirection
This feature allows the use of Bloomberg v4 audio interfaces across multiple sessions. The audio from the sessions now goes through the optimized channel to the Bloomberg interface. The fingerprint interface is redirected to a single session as before.
Note:
By default, this feature is disabled for the x86, x64, and for ARMHF platforms.
For more information on how to configure Bloomberg audio redirection, follow the steps mentioned under Bloomberg v4 keyboard redirection through generic USB and with selective redirection support.
Sign-on page
This release introduces a new sign-on page in the self-service user interface.
Disconnect time![]()
This release addresses issues that help to significantly improve the disconnect time.
Citrix Workspace 1904Citrix Workspace App 1903 for Chrome
This release addresses a number of issues that help to improve overall performance and stability.
Citrix Workspace App 1903.1 for Android
This release addresses a number of issues that help to improve overall performance and stability. For more information, see Fixed issues.
Citrix Workspace App 1903 for iOS
This release addresses a number of issues that help to improve overall performance and stability.
Install Citrix Workspace App
Download Citrix Virtual Apps and Desktops 7 1903 here (requires MyCitrix ID)
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