When trying to enable ST_Raster on PostgreSQL 9.1, this is the error I get
[Mon Apr 29 09:58:20 2013] ST_RASTER support being upgraded...
   Upgrade from release 0 to 100000 
[Mon Apr 29 09:58:20 2013] ev.SQLstate = XX000
SDE DBMS Error: -51  ERROR:  incompatible library "C:/Program Files/PostgreSQL/9.1/lib/libst_raster_pg.dll": version mismatch
DETAIL:  Server is version 9.1, library is version 9.0.
[Mon Apr 29 09:58:20 2013] Error creating ST_RASTER TYPE and functions:-51.
I notice between ArcSDE 10.1 and ArcSDE 10.1 SP1, libst_raster_pg.dll did not get updated.  The version shows as 10.1.0.346.  
Should there have been a new libst_raster_pg.dll released with SP1?
Thanks,
Colin