0.6.0.3 has the same changelog list as 0.6.0.0, plus several tweaks to when things can or cannot happen (one of the devs decided that players could do some things more quickly than intended, such as when you get access to the sex shop), along with over 100 bug fixes from the baseline 0.6.0.0. Just FYI, the current release is v0.6.0.3e (fifth bug-squashing hotfix since x.3), and there'll be at least 1-3 more updates tonight. The stable version won't be until 0.6.1.0, any version less than that is still a beta test release.