I want to upgrade from 4.4 to ver 6. Does anyone know if or where to find out. Any help is appreciated.
The upgrade price is the same for any previous version of Lightroom. In the US the upgrade price is $79. On the order page it is necessary to indicate that you want to purchase an upgrade and also indicate what version you are upgrading from. After you have done that the price will change to the upgrade price. Here is a link to the website where you can purchase Lightroom 6: Products
Make sure that your computer meets the system requirements for Lightroom 6 before you buy.
Notably Lightroom 6 is 64 bit only. There is no 32 bit version so if you're running 32 bit Windows, it won't install or run.