Multisite 110 is up to date for WordPress 4.1!
What’s that? It’s not out yet? Pish tosh.
I’ve been going through everything in the ebook, checking the plugins to make sure they’re still what I would use, editing how to do things like use a CDN as a reverse proxy, and all sorts of other advanced multisite tricks, included the popular “How to switch your main site with another.” Now with better pictures.
If you’ve already bought it once, use the discount code UPDATE for a free version.