snow leopard update 10.6.4 safe?

[Sossity]

the software update popped up with this update to install, along with other stuff. I unchecked the 10.6.4 update, as I have read bad things about it causing bootup problems etc. I am currently running 10.6.3

is there a safe way to install it?

 

[miles01110]

Short of having it preinstalled on a new Mac, you're going to have to install it via Software Update. It's perfectly safe...