Upgrading from 2.x to 4.0
 

Sorry I am not sure where to post this and cannot find out who has the account infos for the boards atm so posting here.

A busy-ish forum 300,000 users 2.5 million posts (probably not busy at all by todays standards but we were one of the biggest vb forums back in the day 9 years ago) is in dire need of an upgrade.

It sadly is still running 2.x but as we need to upgrade I am thinking 4 is a sensible option.

Is it possible to upgrade from 2.x to 4 in one go? or do you have to incrementally go 2.x -> 3.x -> 4.0