In 2013 Citrix merged their application and desktop delivery solutions XenApp and XenDesktop into XenDesktop 7. XenDesktop 7 (XD7) combined the ability to provide remote access to single- and multi-user Windows platforms improving their FlexCast technology.
Besides that we got rid of the ancient IMA architecture, what I liked most was the fact that there’s now one single product to offer access to single- and multi-users applications AND desktops: XenDesktop. Nonetheless we had to let our beloved XenApp go. After numerous evolutions and name changes (WinFrame >> MetaFrame >> Presentation Server >> XenApp) this was the end of an era. But, Citrix did skip the cursed version 6 for the XenDesktop product range. Hooray!