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TypeScript is a typed superset of JavaScript maintained by Microsoft. TypeScript projects share the npm ecosystem — package.json manages all dependencies. ReleaseRun provides free tools for auditing npm dependencies in TypeScript projects, tracking TypeScript release status, and checking dependency health across your stack.

TypeScript Dependency Health

package.json Health Checker

TypeScript projects use npm (or Yarn/pnpm) for dependency management. The package.json Health Checker audits your TypeScript project's package.json for packages with CVEs, EOL major versions, and abandoned packages — including the TypeScript compiler itself and commonly used type definitions (@types/* packages).

TypeScript Release History

TypeScript releases approximately three major versions per year. Unlike Node.js, TypeScript does not have a formal LTS policy — each release is supported until the next one ships. The TypeScript Release History page tracks key releases, breaking changes, and compatibility requirements.

Key TypeScript milestones: TypeScript 5.0 (March 2023) introduced decorators aligned with the TC39 standard. TypeScript 5.5 (June 2024) added inferred type predicates. TypeScript 5.x targets ES2015+ by default.

TypeScript and Node.js Version Compatibility

TypeScript version requirements depend on your Node.js runtime and the JavaScript features you're targeting. TypeScript 5.x supports lib targets from ES2015 through ESNext. Keeping Node.js current unlocks newer target and lib values in tsconfig.json.

Track both TypeScript and Node.js release status on ReleaseRun:

TypeScript Tooling Ecosystem

  • tsc — the TypeScript compiler; run as a type checker in CI with --noEmit
  • ts-node — execute TypeScript directly without compilation; useful for scripts and tooling
  • tsx — faster TypeScript runner using esbuild
  • Biome — all-in-one formatter and linter for TypeScript projects (faster alternative to Prettier + ESLint)
  • ESLint + typescript-eslint — the standard linting setup for TypeScript; adds type-aware lint rules

All TypeScript Tools on ReleaseRun