今天又有两个小朋友来挑战挠痒痒大赛，说好的不怕痒的，谁知道动作比谁都还厉害！开心而又好玩！How can I up grade to this version? I suppose I just could install it once again with the most up-to-date version, but I don't want to get it done right before I'm confident that my job folders in the folder "node"