[RHSeeger]

YAML is not a superset of JSON, it's a totally different format.

[TomasSedovic]

According to the spec, YAML 1.2 is:

"The primary objective of this revision is to bring YAML into compliance with JSON as an official subset."

http://yaml.org/spec/1.2/spec.html

If I understand it correctly, the earlier versions were close but not 100% compatible.

[sehrope]

YAML 1.2 is a super set of JSON. Check out the spec itself: http://www.yaml.org/spec/1.2/spec.html#id2759572

[bct]

It's both.