Migrating from 2008 to 2011

Hi, I'm migrating my site from J1.5 to J1.7, any important consideration to take into account to migrate the alias database transparently?
thanks,
Gianpietro

Export / import the backup will work.
However, you should keep in mind that the non-SEF links might have changed between Joomla 1.5 and 1.7 and all aliases may not work because of that. You should check them manually after the import.

Thanks Saka! will have that into account.

Regards,
Gianpietro