Release v8.0.0 (2025-09-14)

Features

Add dual package support with CommonJS and ESM builds using tsup (#23 by @sectsect)
Migrate test framework from Jest to Vitest with v8 coverage provider
Add comprehensive dual package testing to verify both module formats
Add TypeScript target ES2023 support for Node.js 20+
Add new test commands: test:watch, test:ui, type-check:watch

Bug Fixes

Fix security vulnerabilities in dependencies
Fix TypeScript compilation errors with import.meta usage in tests
Fix tsup build configuration to use default export
Fix npm install hooks by moving build step from prepare to prepublishOnly
Add lcov reporter for codecov compatibility

Refactor / Maintenance

Update TypeScript target from ES2020 to ES2023 for modern Node.js support
Restore Node.js v20.x support (was temporarily bumped to v21+)
Improve test descriptions for better clarity and readability
Add Vitest ESLint plugin for test file linting
Update ESLint configuration to include test directories
Disable TypeScript incremental compilation to prevent DTS build conflicts

Documentation

Add dual package support documentation to README with usage examples
Add ES Modules and TypeScript usage examples
Update CLAUDE.md with Vitest migration and build system documentation
Fix code examples and improve feature descriptions in README
Add Claude Code guidance file for development workflow

CI/Build

Add missing build step before running tests in CI
Fix workflow permissions for GitHub Actions security compliance
Update coverage configuration for Vitest
Remove Jest dependencies and configuration files

Dependencies

Replace Jest with Vitest testing framework
Add tsup for modern dual package builds
Add @vitest/eslint-plugin for test linting
Update development dependencies to latest versions

This major release introduces modern dual package support (CommonJS + ESM) with tsup, migrates the testing infrastructure to Vitest, and updates the
build system for better Node.js compatibility. The package now supports both import and require syntax while maintaining backward compatibility.