Product : Citrix, XenServer/7.1, Standard
Feature : Overview, Assessment, General
Content Owner:  Roman Macek
Summary
XenServer 7.1 Standard Edition includes Citrix support. XenServer 7.1 Standard Edition includes the following new features:

- First-ever Long Term Service Release (LTSR) of XenServer to align with XenApp and XenDesktop
- Support for Nutanix, enabling customers to use Xenserver as the management platform hypervisor

For Standard vs Enterprise edition, please check: http://bit.ly/2ddQiVL
Details
Citrix released XenServer version 7.1 (code-name “Ely”) in February 2017, this release added support for:

-streamlined approach to installing product updates
-long-term support release (LTSR) that underlines Citrix’s long-term commitment to our XenServer customers
-Ability to configure vCPU for Linux guests from within XenCenter without stopping the VM
-Greatly improved performance for VM Import / Export actions

Citrix entered the Hypervisor market with the acquisition of XenSource - the main supporter of the open source Xen project - in Oct 2007. The Xen project continues to exist, see https://www.xenproject.org/