Please see the blog post for an overview of this release.
[New] Support for editing on touch screen devices!
[New] Tag archive support!
[New] Custom page template support!
[New] Default robots.txt which can be overridden by themes
[New] RPC ping when new posts are published
[New] Themes can now have a package.json
[New] Ghost is now an NPM module
[New] Bower now manages front end dependencies