# The river of Apple HIG

> A measured comparison of Apple's 1982, 1987, 1992, 2008, and current Human Interface Guidelines, plus a sourced version catalog.

## When to use this site

Use this site to research how the structure and emphasis of Apple's interface guidance changed over time. Search for a finding or version first, then read only the selected records you need.

## Primary content

- [Comparison as HTML](https://hig.josefrichter.design/)
- [Comparison as Markdown](https://hig.josefrichter.design/comparison.md)
- [Version catalog as HTML](https://hig.josefrichter.design/versions/)
- [Version catalog as Markdown](https://hig.josefrichter.design/versions.md)
- [Sitemap](https://hig.josefrichter.design/sitemap.xml)

## Agent interfaces

Both HTML views register two read-only WebMCP tools: `search_hig` returns ids and short snippets, and `read_hig_items` reads up to eight selected public records. The 88-record corpus contains topic transitions, findings, short attributed excerpts, and version metadata—never complete historical books. It is also available as JSON at https://hig.josefrichter.design/assets/hig-data.json.