I was using the 1.5RC4 of litespeed webserver, then I got noticed by litespeedtech that the final of 1.5 was available.
So I decided to upgrade from 1.5RC4 to 1.5 .
And I have to say it went as easy as blinking your eye.
It is a piece of cake, and your webserver will maybe be down for a second or two.
This is really a great job done by litespeedtech.