[codemonkeymike]

Others have provided good answers but I'll add my 2 cents. Neovim was made to be fully(Mostly?) backwards compatible with all Vim specific features, and most Vi features. You may be wondering what is missing, some ed features and support for some more obscure Operating Systems. You shouldn't have to worry about the missing features as they are mostly legacy features that mostly all new/newish users of vim never will use. As for additional features they are mostly all under the hood, better embedablility, extensibility, and sensible defaults things you don't need when editing your Appache routes on the server.