ICS update for Defy XT 535 OR Defy+(MB526)

[SandeepRoy]

I need to understand if i can update the XT535 or MB526 from GB 2.3 to ICS ?
Both phones are GSM. A friend is discarding them & i would need help in choosing one phone.
New to Android, need help. :-\

Ref link - Motorola DEFY XT535 vs. Motorola DEFY+ - GSMArena.com