I think he is refrering to the SEP install package that got downloaded through liveupdate in SEPM, When we upgrade the Manger to RU5 , the SEPM version shows 11.0.5002.333 , but the cleint packge still show 11.0.5000.2 or 11.0.5002.0 ( I am not sure about the version ).But when we try to add the 11.0.5002.333 package in SEPM we get the messgae that the package already exists.
When an install packge is created with the help of this packge the version shows 11.0.5000.2 or 11.0.5002.0
But if a cleint is upgraded through auto upgrade shows the version as 11.0.5002.333.