RockOfFire

Again, noob at this. -.- How do you change the .jar file?

So I've been looking at the forums (not a forum person, so you guys are going to probably yell at me), but I can't figure out how to up-date my launcher. I thought the launcher was suppose to up-date by itself, but mine is not. :/ I'm sorry if this is suppose to be somewhere else(or already talked about), like I said, don't usually go on forums because I don't know how they work.