Upgrading VDA and PVS target device software

All of us in the IT world have to deal with upgrades—from the smallest binary on Patch Tuesday to complex upgrades of enterprise applications, databases, and storage. A pivotal part of administering a XenApp environment is keeping your systems as up to date as possible with the latest Citrix hotfixes and service packs. When it comes to major releases, such as XenApp 7.6, it is completely understandable and expected that companies will not migrate their production environment from 6.5 to the latest version right away. In all fairness to them, the architecture is so different between 6.x and 7.x that in some cases, it may not be recommended to do so until all applications are tested with 7.6 and newer operating systems, such as Windows 2012 R2. Since there is no upgrade path from XenApp 6.5 to 7.6, companies currently on 6.5 will need to build a brand new 7.6 infrastructure, conduct thorough testing, and slowly migrate users to a new environment...