OS 5.0 for 8520 Query

Hi, :)

I saw that the Official OS 5.0.0.860 has been released for the BB 8520 Curve through WIND Hellas.

Link : Official OS 5.0.0.509 For The Blackberry Curve 8520, 8900 And Bold 9000 From WIND Hellas

I was wondering whether or not ANY carrier around the world can download this OS update and not face problems.

I live in India and have a BB Curve 8520 and its an all-round GSM phone which takes every carrier available here.

Would love to know if I can install that OS Update without possibly facing problems.

Thanks,
AK_Boris