There is an error with latest Meteor @1.6.1 and all meteor releases after @1.5.4.1

[ryanbraving]

On blog admin after creating a new blog and in order to publish it, it needs to change the setting from "Me & Admins only" to "The World". But after hitting the change this error happens:
Uncaught TypeError: this.update is not a function
an screenshot has been attached