Meteor 2.0-rc.1 is out 
If you want to see HMR in action watch this video where I update an app from Meteor 1.11 to 2.0-beta.9 to use HMR with React
This video is part of a series (see the playlist Making Of) where I’m recording without edits (so you can learn with my mistakes) the development of an education platform for web developers. And of course I’m using Meteor to build the platform.
If you want learn Meteor and web development follow this channel. New videos every week.