So we are getting ready to migrate a Fortisblue client. According to this post we are to upgrade from 2.5 to 6.8 then 6.9, 6.10, 6.11, and then 6.12. Is this correct? This is confusing because when I look at the FAQ it does not show any download for 2.5 or higher. 

1. Do we need to upgrade step by step all the way to 6.12 for FortisBlue?

2. If so where do we need to download the software from?