Preamp Question

My Bryston BP25 is presently being serviced by Bryston. I'm wondering if anyone has ever had their BP25 serviced recently and if it can be considered a "new" preamp internally,at least,when it comes back from the shop.The reason I'm asking is because I'm thinking of upgrading to their BP26 because of the new power supply. If the BP25 is updated then maybe I will just get myself their new power supply.
any thoughts/insights would be appreciated.
I believe there has been chat on this on audiocircle.
If you can't find it,I'd talk to James Tanner over there.