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@mrsteele mrsteele released this 02 Feb 03:20
· 2 commits to master since this release

modernize to ESM with Node.js 18+ and TypeScript support
BREAKING CHANGE: This release modernizes the package to current standards and introduces several breaking changes:

  • Minimum Node.js version is now 18.0.0 (previously 12+)
  • Package is now ESM-only, CommonJS (require()) is no longer supported
  • All imports must use ESM syntax (import instead of require)
  • CLI preload flag changed from -r to --import
  • Converted entire codebase from CommonJS to ES Modules

New features:

  • Full TypeScript support with included .d.ts files (no build step required)
  • Comprehensive JSDoc type annotations for better IDE support
  • Modern package exports for better import resolution
  • Updated dependencies to latest versions (dotenv ^16.4.7, jest ^29.7.0, standard ^17.1.2)
  • GitHub Actions workflow updated to test Node 18, 20, and 22

Migration guide included in MIGRATION.md for users upgrading from v2.x.

Users must update their code from:

require('dotenv-defaults/config')

To:

import 'dotenv-defaults/config'

See MIGRATION.md for complete upgrade instructions.