Citrix has released update 5 for the XenDesktop 5.6 Controller software.
Fixed with this update:
- This update is intended to be applied only by customers who require Federal Information Processing Standards compliant encryption. This update supports end-to-end TLS encryption of HDX communications in a XenDesktop 5.6 environment.
You can download and read more about installing and uninstalling this update at the following locations.