I'm not sure what to choose. vB 3.8.7. or 4.2.0. My three forums currently runs on vB 3.8.7. Should I upgrade? I'm worried about prefromance, higher CPU and memory usage.
I agree with Solid - stick with vBulletin. I installed 4 and hated it - I so dislike it. I have always had a love for 3.8, such a great forum software. Now that vB5 is out that is even worse. Dannm...
There is nothing wrong with the 4.2.x series of vbulletin. If you have access to that license, I'd definitely upgrade your forums.