require(esm) now stable in Node 25

#​608 — January 22, 2026 Read on the Web Node.js 25.4.0 (Current) Released — Another gradual step forward for Node with require(esm) now marked as stable , as well as the module compile cache , along with a variety of other minor tweaks. Joyee Cheung of the Node team has written a thread on Bluesky going deeper into this release. Rafael Gonzaga 💡 Socket also published a good round-up of the Node 25.4 release. New Course: Backend System Design — Join Jem Young for this detailed video course and develop the system-thinking skills to solve complex backend design challenges related to scaling, data storage, reliability, performance, and more. Frontend Masters sponsor 🤖   Mastra 1.0: An AI Framework from the Former Gatsby Team — An all-in-one framework ( homepage ) for building AI powered apps and agents. With v1.0, you can now bundle agents and workflows into existing Node apps using several new adapter packages to run Mastra inside existing Express, Hono, Fastify or Koa apps. Support for