Reg:Clodstack upgrade from 3.0.2 to 4.0.2

[prakash]

Hi,

 db scheme from 3.0.2 to 4.0.2 is not available.

schema-302to40.sql

 so how can we upgrade cloudstack from 3.0.2 to 4.0.2 any ideas?

 Regards,
 Prakash.M