The after.md file is not documented

This after.md file, which I also encountered in old, obscure corners of the Python repo, seems to be entirely undocumented publically.

Was are its role, purpose, presentation, …?

Ehm, Concepts | Exercism's Docs?

after.md, not about.md.

After.md was used before. But was deprecated.

Yeah, they’re the same thing (sorry that wasn’t obvious)