is version 2.8.4 legit?

I was just in the middle of upgrading a wordpress install to 2.8.3 and on the final page where you go back to wp-admin it said “please upgrade to 2.8.4”

I see that 2.8.4 is available for download here on ww.wp.xz.cn (shows as the current version), but I don’t see any posts about it on the dev blog at ww.wp.xz.cn/development or twitter.com/wordpress

So I’m just checking to make sure it’s “real” and I’m just super fast or if it’s compromised somehow.