Can Someone Explain to me the different versions of Citrix XenApp Server?


We are currently using Citrix XenApp Server 6.0 on our Citrix farm.  It is working like a champ even though it is considered old and bug-prone.  We were told that Citrix 6.5 came out 6 months after version 6.0.  

We were planning on upgrading our Citrix Farm to version 7.6 (the latest version); but, our major software vendor just told us that they have not done full testing on version 7.6.  I have asked them what is the newest version that they have done full testing on.  Please see the web link below:

Can someone explain to me what the different versions of XenApp represent?  Does XenApp version 7.5 include everything from version 6.5 and new hotfixes (as of may 2014)?
PkafkasNetwork EngineerAsked:
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Carl WebsterCitrix Technology Professional - FellowCommented:
XenApp 6.5 did come out several months after 6.0 and that was back in 2011. That is a lifetime ago in software terms.

XenApp 7.x is a completely different product than XenApp 6.x. Many features of XenApp 6.5 were not included in 7.x for whatever reasons. They are slowing being added back in. XenApp 7.6 FP1 is the latest and adds back in several of the missing features. 7.x supports Server 2012+ and Windows 8.x.

Citrix just added one year to the supported lifetime of XenApp 6.5 which is now through sometime in 2017. They also announced another FP coming to XenApp 6.5.

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