Probably not - if you have been using it since then you probably know the program inside out. A new (365) version has a lot of added stuff, almost all of it non-vector and, in my opinion mostly inessential. Xtreme 5 is a very good program, most of what has been added since then has had a strong emphasis on the photography side of things. A huge plus was the light interface - Stay with Xara by all means, have a look-see at what has been added, but I would be inclined to go with Affinity Designer for noticeable improvements to what you have already got.
Bob.