Samsung Kies Updates released new firwmare updates for Samsung devices.
These Samsung devices are:
GT-19003 MID = United Arab Emirates I9003JPKPH/I9003OJPKPC
GT-19003 XSG = United Arab Emirates I9003JPKPH/I9003OJPKPC
GT-19003 PAK = Pakistan (PAK) I9003JPKPH/I9003OJPKPC
GT-S8500 CHN = China S8500ZCLB4/S8500OZCLB4
Source: Samsung Buzz