What’s new in 1808
Version 1808 of the Linux VDA includes the following new features and enhancements:
Adjust average bit rates based on bandwidth estimation
With this release, Citrix is enhancing HDX 3D Pro hardware encoding by adjusting average bit rates based on bandwidth estimation. For more information about this experimental feature, see Configure graphics.
Support YUV444 software encoding
Starting with this release, the Linux VDA supports YUV444 software encoding. The YUV encoding scheme assigns both brightness and color values to each pixel. In YUV, ‘Y’ represents the brightness, or ‘luma’ value, and ‘UV’ represents the color, or ‘chroma’ values. You can use this feature of the Linux VDA on Citrix Receiver for Windows 4.10 through 4.12 and on Citrix Workspace app 1808 for Windows and later. For more information, see Configure graphics.
Smart card certificate mapping
Starting with this release, a smart card certificate-mapping module is deployed. This mapping module (or mapper) maps a certificate to a domain user when the user is logging on to a Linux virtual desktop session. This new feature enhances smart card logon by supporting smart card certificates generated from a larger range of certificate templates. For more information, see the Configure the pam_pkcs11 module section of Pass-through authentication by using smart cards.
Support Citrix Workspace app for HTML5
Starting with this release, you can use Citrix Workspace app for HTML5 to access Linux virtual apps and desktops directly without connecting your client to Netscaler Gateway. For more information, see Support Citrix Workspace app for HTML5.
HDX bandwidth limit
This version of the Linux VDA supports the bandwidth limit on total sessions and the bandwidth limit per each virtual channel. You can set the relevant bandwidth policies to avoid performance issues that can arise due to the bandwidth consumption of sessions. For a list of supported bandwidth policies, see Policy support list.
System requirement changes
- In this release, RHEL 7.5 and CentOS 7.5 are supported. For more information, see System requirements.
- To use this version of the Linux VDA in RHEL 7.4 or CentOS 7.4, update the selinux-policy package to selinux-policy-3.13.1-192.el7_5 or later versions.