[jaredwilli]

Originally Posted by Lynne

I have never heard anything about having to upgrade a 3.8.3 board (or any version board) to 3.8.4 first - where did you get this info because I don't see it in the readme files. All you should have to do is upload the vb4 files and run the upgrade script. Once your database starts to be upgraded for 4.0, there is no going back. You will have to use your backup to go back to the 3.8 series.

It says this in the vb4_readme.html

Upgrading from older versions of vBulletin

Before upgrading to vBulletin 4.0, you will need to download the files to upgrade to vBulletin 3.8.4. Once your community is running on vBulletin 3.8.4, then you can upload the vBulletin 4.0 files and perform the upgrade to this version. If you need assistance with this, contact vBulletin Support.

There is a section right before it that is for: Upgrading from vBulletin 3.8.4

I saw this and panicked, thinking that it had to upgrade from 3.8.4. vbulletin is picky so I have no idea what could happen.