can't invoke static methods in Matlab 7.1.0.246(R14)

This is a simple .m file. Saved to "temp.m".

In Matlab 7.12.0 (R2011a), I can just call temp.t0() or temp.t1(), it will print the expected results. But in Matlab 7.1.0.246(R14). It shows this error:

>> temp.t0()
??? The function, script, or class temp
cannot be indexed using {} or . indexing.

Is it because Matlab version is low, and it doesn't support to invoke static methods?

Below is the source code of temp.m

classdef temp
    methods (Static)
        function [] = t0()
            fprintf('function t0\n');
        end
        function [] = t1()
            fprintf('function t1\n');
        end
    end
end

[per isakson]

AFAIK: The support for classdef first appeared in R2008a