v0.0.4 - 2019-03-24

• Fix test.
• Extend compatibility back to OCaml 4.04.2.

v0.0.3 - 2019-03-24 (bad)

• Keep track of external data files using a Git-tracked manifest.
• Update data.

v0.0.2 - 2018-11-28

• Split API into three modules corresponding to ISO 639-3, ISO 639-5 and combined types.
• Add scope and macrolanguage requests.
• Tidy up the API and documentation.
• Bugs may have been fixed in the process.

v0.0.1 - 2018-09-04

• Initial release.