This repo contains different scripts to automate the update of Ghost. All of them are up to date to take you from any version of Ghost to the latest. If you are unsure, here are the scripts you should use:
Full instructions located on Ghost for Beginners
###Hosting on DigitalOcean
Script: updateghost_digitalocean.sh
Command: wget -O - https://allaboutghost.com/updateghost-digitalocean | sudo bash
###Hosting Yourself
Script: updateghost.sh
Command: wget -O - https://allaboutghost.com/updateghost | sudo bash