[Hoft]

Originally Posted by votan version is nil? should be a number, e.g. 1.

Right! Just forgotted to place this variable in example.
But version is assigned in my version of the add-on.

Nearly solved: ZOS bug? getFunc can receive only local variables! Now it works:

function Addon.Menu()
	local settings=Addon.Vars
	local options = {
		{	type	= "checkbox",
			name	= "Enables add-on",
			tooltip	= "",
			getFunc	= function() return settings.OnOff end,
			setFunc	= function(value) Addon.Vars.OnOff =value end,
			default	= Addon.Defaults.OnOff,
		},
end

But now ZO_SavedVars do not saves actual values!