mysql and php version compatibility

[Kirkus]

I'm curious if anyone knows if mods added to vBulletin are all compatible with versions 5 of both mysql and php?

I want to upgrade my installations of mysql and php to the latest stable versions, and vBulletin itself won't have a problem, but I wonder if any of my mods might?

[Lynne]

I would guess that most made recently (the last couple of years) are compatible since many (most?) people have already upgraded to version 5 or php and mysql. But, read the threads because if it isn't compatible, I'm sure people would have posted about it.