Good morning/afternoon/evening/whatever, wherever you happen to be.

I currently have on multiple linux boxes some sztaki boinc installs of boinc v4.19 I think it is. Anyway, I need to upgrade to 5.4.9 or whatever. How do I do this since they have changed a few items since then. I'd like to keep the same system ID#'s, otherwise I'd just detach and do new installs.