# Release history
## 4.0.0 - 2018-04-01
### Breaking changes
- Now requires node v4 or higher.
## 3.0.0 - 2017-06-30
### Breaking changes
- `toml`, `coffee` and `cson` are no longer supported by default. Please see [`options.engines`](README.md#optionsengines) and the [examples](./examples) to learn how to add engines.
### Added
- Support for [excerpts](README.md#optionsexcerpt).
- The returned object now has non-enumerable `matter` and `stringify` properties.
### Changed
- Refactored engines (parsers), so that it's easier to add parsers and stringifiers.
- `options.parsers` was renamed to [`options.engines`](README.md#optionsengines)