For some odd reason, when I attempt to update MC to 1.0.0 (NOT craftbukkit), it goes through the normal updating procedures, but it fails to show the updated version in the about section.
Users can log in and do stuff in 1.0.0 server (like normal), but then, after a few minutes, it is reverting back to 1.8 server (i have to downgrade client to 1.8 in order to log in).