Node 18 | Top |

Thank Node 18 for fetch , streams, and a built-in test runner. Then leave it behind. What version of Node are you running in production right now? Let us know in the comments below.

// test/basic.test.js import test from 'node:test'; import assert from 'node:assert'; test('synchronous passing test', (t) => assert.strictEqual(1, 1); ); node 18

But as of April 2026, Node 18 belongs in the history books—not your production servers. If you haven't migrated to Node 20 (and soon, 22), treat this as your wake-up call. Thank Node 18 for fetch , streams, and

This wasn't just about convenience. It reduced bundle sizes, improved standardization, and made isomorphic JavaScript (code that runs identically on client and server) a true reality. Okay, maybe not death , but a serious challenge. Node 18 introduced an experimental test runner that later became stable in Node 20. For the first time, you could write and run tests without a single devDependency . Let us know in the comments below