Well I'm not sure it has anything to do with vulnerabilities or not. They do a large feature add on minor updates between 6.x and 6.x+1 which may or may not add

Well I'm not sure it has anything to do with vulnerabilities or not. They do a large feature add on minor updates between 6.x and 6.x+1 which may or may not add new modules etc. I design stuff to be resilient to host reboots. Then again we have a lot of kit to play with.