Upgrade cocos2d-x

Hi,there:
I know this is a stupid question, but i just cant’t figure out how to upgrade the cocos2d-x to a newer verison.
here is there situation:
1:I already have a cocos2d-x project, how to upgrade it?do i have to replace all the lib files in the project with the newer version?
2:how to create a new project with the newver cocos2d-x template in Xcode? do i need to run ./install-templates-xcode.sh again?

Hi,

This is a simpler way. Use the newer version as a base template.

Put all your the classes and assets to the newer version. In VS, add all the classes and assets again and compile.

Hope helps.

thanks