TiVo does this with every update. The rollout includes a customer support ramp of the final beta version (L5 in this case). The full release is identical, but they take the beta identifier out of the version number.lessd said:
I had that happen once when I got the CS ramp a few updates back. When the roll out was complete, that TiVo updated again to the final version number. I think it was about 5 weeks or so later.