Update documentation

Author: axelrindle

README.md

@@ -14,6 +14,14 @@
 
 While versions below 12.x are not officially tested they might work anyway.
 
+## Is this ESM only?
+
+**No.**
+
+This module may be require'd (CommonJS) or imported (ESM).
+
+I do not plan on making this an ESM only module in the near future.
+
 ## Install
 
 ```bash

docs/changelog/unreleased.md

@@ -3,6 +3,29 @@ sidebar_position: 1
 ---
 
 # 🔜 Unreleased
+## Added
+
+- A brand new CLI interface for usage in non Node.js projects.
+
+## Changed
+
+- `undefined` is returned instead of `null` in case of no found updates.
+- The usage of the GraphQL API may be explicitly disabled by passing `false` for the `token`.
+- The GraphQL queries have been optimized in terms of stability and reliability.
+- Using [Octokit](https://github.com/octokit) under the hood.
+
+## Removed
+
+- The `reduceTraffic` option.
+- Official support for Node.js below version 12. Older version might work but are not tested.
+
 ## Security
 
--  Bump minimist from 1.2.5 to 1.2.6 (#10).
+- Dependencies have been updated.
+- The project is officially built and released with Node.js 18.
+
+## Other
+
+- Documentation an other stuff is now hosted at https://axelrindle.github.io/github-version-checker/
+- Moved to TypeScript.
+- Using [Lerna](https://lerna.js.org/) for monorepo management.