[Garkin]

Yes, it is exactly that easy as you say.

Just add some flag to the saved variables, so you can check if variables are updated already. Something like:

local newDefaults = {
    internalVersion = 1,
    key1 = value1,
    ...
}
 
MYADDON.savedVariables = ZO_SavedVars:New(...) --here should be correct arguments to the function
 
local currentVersion = MYADDON.savedVariables.internalVersion or 0
 
if currentVersion < newDefaults.internalVersion then
    for k, v in pairs(newDefaults) do
        MYADDON.savedVariables[k] = v
    end
end