v2.0.0

Added

• createLogger(options) and the Logger class, for loggers with their own level, name, format and destinations.
• Log levels (trace, debug, info, warn, error, fatal, silent) that actually filter output, settable
  through logger.level, logger.setLevel() or the LOG_LEVEL environment variable.
• logger.trace(), for the level below debug.
• logger.child(), which inherits everything from its parent, joins names with a colon and merges structured bindings.
• logger.isLevelEnabled(), to skip work that only exists for a log line.
• Structured JSON output through format: 'json' or LOG_FORMAT=json, including errors, BigInts and circular
  references in the bindings.
• Configurable timestamps: locale time, ISO 8601, a custom function, or none at all.
• Configurable destinations — anything with a write method, so logging to a file or a test double needs no mocking.
• Support for the NO_COLOR and FORCE_COLOR conventions, on top of TTY detection.
• A CommonJS build alongside the ESM one, each with its own type declarations.
• npm run demo, which prints every feature to your terminal.

Changed

• Breaking: messages below info are no longer emitted by default. Set LOG_LEVEL=debug or
  logger.level = 'debug' for the old behavior.
• Breaking: output is written directly to process.stdout and process.stderr instead of through console.
  Tests that spied on console.log should spy on process.stdout.write. The stream each level goes to is unchanged.
• Breaking: Node.js >=22.12.0 is now required.
• fatal is now magenta instead of red, so it can be told apart from error.
• Pretty output colors the timestamp, the tag and the message separately instead of tinting the whole line.

Removed

• Breaking: the chalk dependency. The package now has no runtime dependencies.

Compatibility

The default export still works the same way, from both ESM and CommonJS.

v1.0.1

What's Changed

• Added default export for everything.

Full Changelog: v1.0.0...v1.0.1

v1.0.0

What's Changed

• Re-initialized project under new package name.
• Rewritten in TypeScript.

Full Changelog: https://github.com/moonstar-x/node-logger/commits/v1.0.0