Legacy Article : Arduino Yun

Good day. I've an 2014 article that I am going to follow to make a standalone webcam server with Dropbox assets. The article is based on the Yun . However , I note that this item is 'retired' . Does the Yun Shield take it's place ? Will I have any major issues porting to the different device? Thanks - very new at this and this looked like a good place to start. Ms