Citrix has released a new version of Citrix Receiver for Windows, new version is 4.3.0.5014
At last this version includes ADMX support files (still need some improvements )
Download installation file:
https://www.citrix.com/downloads/citrix-receiver/windows/receiver-for-windows-43.html
Changes is this version:
http://support.citrix.com/article/CTX138197
And finally documentation: