# Changelog for `express-cluster-stability`

## v3.0.0

- **BREAKING:** Remove common-js, now only a module.

## v2.0.0

- **Misc:** Upgrade build and code structure.
- **BREAKING:** Require Node.js >=13.2.0.

## v1.4.2

- **Misc:** For consistency, always log a `string` and an optional `Error`.

## v1.4.1

- **Fix:** Handle Promise rejection from master function; quit with exit code 1.
- **Fix:** Load environment variables on use, rather than on load. Allows using
  [dotenv](https://www.npmjs.com/package/dotenv) for configuration.

## v1.4.0

- **Feature:** Allow `workerFunction` to return `Promise` for server.
- **Feature:** Allow `masterFunction` to return `Promise`, to delay initial
  workers.
- **Fix:** The server closing fast is not an error.
- **Docs:** Correct `logLevel` env variable.

## v1.3.2

- **Misc:** Enforce correct argument types.

## v1.3.1

- **Fix:** `workerFunction` is not required to return a server.

## v1.3.0

- **Feature:** Accept optional `masterFunction` as third argument.
- **Misc:** Print `logLevel` before `processName` in default logger.

## v1.2.1

- **Docs:** Encourage starring in `README.md`.

## v1.2.0

- **Feature:** Add extra export `log`.
- **Docs:** Document `processName` and `log` in `README.md`.

## v1.1.2

- **Docs:** Add `workerRespawnDelay` and `workerKillTimeout` to full example.

## v1.1.1

- **Docs:** Add this `CHANGELOG.md`.

## v1.1.0

- **Feature:** Don't spawn workers too fast.

## v1.0.0

- First official release.