Moving from VB4 - Viable alternatives

[ruchirasharma]

Hi

Logged into VB4 console and saw this: https://www.vbulletin.com/forum/node/4383927

The vBulletin 4.X Publishing Suite is considered to be End of Life software. While we will strive to support the latest version, we do not foresee any further development of the series.

There are known vulnerabilities in VB4, which they will not fix. What are my alternatives? We run a forum with like 300K users, and 200 sub-forums. What we need something that is works great on search engines.

I have been recommended Xenforo, Hoo.la and Vanilla.