Unreal Engine 4.18 Released!

What’s the difference between VS Code and the normal version? Can I replace VS community by it and make it work with UE4 the same way it does now? I installed VS 2015 because UE4 required it but I don’t use it at all, if I can replace it by Code and get some extra disk space that’ll be great.

And about this:

If I package a game for Android and PC using Google OSS and Sign-In can I make PC and Android people play together (AKA cross-platform multiplayer)?