This will make it much easier to fix bugs and make improvements going forward, since they won't have to wait for the next release of Meteor. One functional change: when the parent process exits, it no longer forces all connected shell clients to disconnect, which is actually a more convenient behavior, because it gives the clients a chance to reconnect when/if the server starts up again, and it's easy enough to kill the clients if that's what you want.
Isobuild Static Assets
Files here are designed to be copied to the output destination of a Meteor CLI command.
Sometimes, for code sharing, the JS files can be imported by parts of the tool
(like mini-files.js - it is shared between built apps and tool).
skel - App Skeleton
skel is a folder that is the skeleton of a new fresh app. It is copied to the
destination on meteor create command. The important part of the skeleton is
the packages it includes by default.
skel-pack - Package Skeleton
Similar to skel, skel-pack is copied on meteor create --package command.
server - Bundled App's Bootstrap
The server folder is copied by Isobuild when the app is bundled (on
meteor run or meteor build). The boot.js file is the default entry point
of any built Meteor app, it loads the server program and runs the files from the
manifest. It also sets up the source-maps and a backdoor for meteor shell.