2.2.4 / 2018-03-13

- Use flow strict mode (i.e. `@flow strict`).

# 2.2.3 / 2018-02-19

- Change license from BSD+Patents to MIT.

# 2.2.2 / 2016-11-15

- Add LICENSE file.
- Misc housekeeping.

# 2.2.1 / 2016-03-09

- Use `NODE_ENV` variable instead of `__DEV__` to cache `process.env.NODE_ENV`.

# 2.2.0 / 2015-11-17

- Use `error.name` instead of `Invariant Violation`.

# 2.1.3 / 2015-11-17

- Remove `@provideModule` pragma.

# 2.1.2 / 2015-10-27

- Fix license.

# 2.1.1 / 2015-09-20

- Use correct SPDX license.
- Test "browser.js" using browserify.
- Switch from "envify" to "loose-envify".

# 2.1.0 / 2015-06-03

- Add "envify" as a dependency.
- Fixed license field in "package.json".

# 2.0.0 / 2015-02-21

- Switch to using the "browser" field. There are now browser and server versions that respect the "format" in production.

# 1.0.2 / 2014-09-24

- Added tests, npmignore and gitignore.
- Clarifications in README.

# 1.0.1 / 2014-09-24

- Actually include 'invariant.js'.

# 1.0.0 / 2014-09-24

- Initial release.