Updated addons and savedvariable question

[Anceane]

When you update an addon should we remove the savedvariable and start from fresh ?

i dont use minion i do my installations mysellf, but i often wonder if for some addons like Destinations, Lorebooks, Mininap when you do lots of changes into your LUA files, can we keep our savedvariables files or the new version of the addon will just adapt the savedvariables itself ?

Thank you