which version shoud i use?

some people told me v4 is better than v5. right?

Haven't used 5 yet, but 4 is decent

v5 is best go with v5

The latest version of anything, let that be forum software, CMS etc.. would be better than the previous one. Of course there will be bug/vurnablities which are fixed and what not.

I am using 4.2.0 and i suggest your use 4.2.0 or updated version. In vb5 have so many bugs and not so much mod hacks

vB5 is having a bad press, it's very vuln and not very stable..

4.2.x is also vuln to multiple things, however it's easier to patch and not as many things to wrong.

If you're wanting 4.x.x, then go for 4.2.2 stable release or I think there is a 4.2.3 beta at the moment, not 100%.

I'd recommend 4.2.2 none the less.

4.2.2 is the stable branch that is overall compatible with many themes as well as modifications. Dont you 5, its still a buggy environment there.

Use the latest version