# YAML (YAML Ain't Markup Language)
Status: public
Confidence: medium (0.835) (verified)
Last verified: 2026-05-28
Generation: human_only


## TL;DR

YAML is a human-friendly data serialization language whose information model uses mappings, sequences, and scalars. The article now relies on YAML specifications rather than unrelated web or AI sources.

## Evidence Notes

- YAML 1.2.2 anchors the current definition and data model.
- YAML 1.2.1 documents the JSON-alignment change from earlier behavior.
- YAML 1.1 remains included only as version-history evidence.

## Further Reading

- [YAML 1.2.2 specification](https://yaml.org/spec/1.2.2/)
- [YAML 1.2.1 specification](https://yaml.org/spec/1.2.1/)
- [YAML 1.1 specification](https://yaml.org/spec/1.1/current.html)