Congratulations to Ninja Forms for their major release, version 3 (they annoyingly but cleverly named it “THREE” in all caps). It’s a complete rewrite of the interface and codebase, built with Backbone, Underscore, and Marionette, along with using an interesting front-end templating system.
They spent a very long time on this release, and it went out to 600,000 free users of the plugin. I do not envy the task but their marketing and management of the process was something to behold and learn from.
