ah, so does a diff between the official version (form wp.org, so 1.9.2) and the one you're using (1.9.3-pre) and it's flagging your version because it doesn't match? well, nothing to worry about then, no? I'm hoping to be able to push 1.9.3 out the end of this or the beginning of next week (finalizing wp youtube lyte 1.6 first).
frank