Upgrading a Rails App to Tailwind v4

Last week, I upgraded a client’s Rails app to Tailwind v4. I rarely delay upgrading dependencies, but after briefly looking through the release notes on Tailwind v4 when it first came out, I decided I would hold off for a bit on most of my projects. (I also tend to wait a bit on upgrading to a major release to until a few patch releases have come out.) For this modest-sized Rails app, the upgrade…