Snetterton Classic 29th June ??

I wonder if someone better informed than i am could help me...........
I was planning to attend this event as a spectator. However I am confused. At the beginning of the season i noted it down as a 3 day MRL event. More recently the MRL website showed it as a 2 day event (i think it was U2TC & Historic TC &TonyDron + the usual HRDC grids). MRL now show their next event as Silverstone. MSVs website shows Snetterton as a 1 day (sunday) event- it only appears to refer to HRDC races. Does anyone know whats racing ?