I know one can issue a quit via the netcon port when you run forked l4d2 servers. This works very nice (waiting for all players to be finished, then it will update)
At the moment if there is a update i normally issue a quit towards the port of the server, in this case it should be the netcon port, but thats not how i have set it up at the moment.
So.... is there any way you can stop/shutdown the forks? so if you have 8 forks running that you perhaps issue some sort of command which will make it restart (and thus auto update it)