Seeing my old post I think it deserves an update 😄

Best Practice 6: moving a scoped app (aka deploy)

Nowaways I would not recommend anymore to use / stick with update sets. We have made great improvements on how we package applications and publish them to the application repository. This should be the no. 1 / default way to go. If you happen to have a complex environment with lots of developers and potentially lots of instances using source control as a mechnism can also be a help.