my Lightroom is a 4.4 version system .. it will not open RAW files from my Nikon D810 camera .. how do I upgrade my LR 4.4 system ? .. I do not want to buy a cloud system ..
You could purchase the standalone version of Lightroom from Products
Or you could use the FREE Adobe DNG Converter (version 9.1) to convert your RAWs to DNG, which can be read by Lightroom 4.4.
By the way, "cloud system" as you call it is vastly misunderstood, the Creative Cloud version of Lightroom is a local app that runs on your computer, it does not live or exist in "the cloud", and it needs to be connected to the internet only once a month to make sure your subscription is paid.
thanks much for your response .. at this time I am downloading the standalone version of Lightroom 6.0 ..