IL-2

I have this sim along with Forgotton battles, Ace expansion pack, and the latest Pacific Fighters. I cleared a large space on my primary drive to reload it as I love this sim and have a little more time these days to fly something other than FS9. Does anyone know how many patches are out now for the sims? Will I have to start with IL-2 and update it in total before loading Forgotton Batles? Do the same for Forgotton before loading the Ace expansion? The same for Pacific Fighters? Or have they got it now that one patch will do it all for the entire series? Was thinking I might reload LOMAC as well as when I got it had just came out and was full of bugs. It looks like it has come a long way since release. I have a feeling I have my work cut out for me. Any info would be great. Thanks guys 
Mike

Mike