Samsung Kies Updates release a new firmware update.
These devices are:
Wave I GT-S8500:CHN = China S8500ZCLB4/S8500OZCLB4
Wave II GT-S8530:CHN = S8530ZCLB4/S8530OZCLB4
Wave I GT-S8500:XXX = Default S8500XXLA1/S8500DBTLA2 (Bada 2.0)
Source: Samsung Buzz