# MATLAB: Do I get different results when performing complex number vector multiplication in Matlab R2017b compared to newer releases

MATLAB

I have a complex number vector 'x' and I perform x*x'.
I got different results in R2017b and R2018a.
Below is the sample code:
rng('default')n=2;x = rand(n,1)+rand(n,1)*1j;ret = x*x'isHermitian = isequal(ret,ret')
In R2017b:
ret =     0.6799 + 0.0000i   0.8540 - 0.6291i     0.8540 + 0.6291i   1.6547 - 0.0000iisHermitian =    logical     0
In R2018a:
     0.6799 + 0.0000i   0.8540 - 0.6291i     0.8540 + 0.6291i   1.6547 + 0.0000iisHermitian =    logical     1
Why is that?