Bill Berry left some years ago. They played with Beck's drummer Joey Waronker for some time, then recruited Bill Rieflin for their 2003 European tour. I'm not sure if he's still with them or if he's been made a permanent member.
Current press suggests that the band are credited as the three original members. This is an increasing trend - Status Quo are Parfitt and Rossi, rhythm section uncredited, and The Stones' replacement for Bill Wyman remains as a salaried session musician, not included in interviews or band photos. Still, you would, wouldn't you.