In web frameworks, over the past decade, we've had various PHP frameworks, Zope, Ruby on Rails, Django, a variety of microframeworks in various scripting languages, Play, node.js+express in a handful of configurations (though generally MVC-ish), and Phoenix. There's very likely more that I'm forgetting.

In deployment, we've gone from SFTP scripts to Fabric-like software to PaaS to configuration management software to Docker, and then it seems every 6 months there's a different preferred way to make Docker do something useful. And of course there's the eternal argument over whether to deploy to VPSes, cloud platforms, or bare-metal hardware.

The "hip" web companies at any given moment - the ones who need the latest and greatest components to impress investors and attract "rockstar" "10x" developers - aren't tied to any specific language. They'll pick whatever was the most popular at the time they needed to pick something. Hence, right now, you have a whole lot of companies building on Golang and node.js, where they'd've been building on RoR five years ago.