Upgrade path from 1.9 to 3.0?

Hi,

Which is the upgrade path from 1.9 to 3.0?
Do I need to upgrade before 2.0 and to each high versions until 3.0?

Thank you

Found it:

Note (upgrading from 1.X to 2.X): If you want to upgrade from a version 1.90 to the latest version, you would need to install 2.00 first (over the existing database), run the 1.90 to 2.00 migration SQL script, and then upgrade to 2.10, 2.20, 2.30, etc