ESM-only and updated Node.js requirements — permalink
The Checkly CLI is now distributed as ESM only instead of CommonJS, and CLI 8 requires Node.js ^20.19.0 || >=22.12.0. Make sure your local development, CI, and deployment environments run a compatible Node.js version before upgrading; your own projects can still use CommonJS. The CLI also switches its TypeScript loader from ts-node to jiti, which is now bundled as a direct dependency.
npm install checkly@latest