JSON Schema has been around for quite a while. Back in 2015, a small group decided to pick up development from draft-4, publishing a futher 4 drafts (draft-8 pending).
JSON Schema is primerily used for validation, but during the period between draft-4 and rebooting the project, a number of other use cases developed, including form validation and code generation.
Each library that extends the functionality of JSON Schema by adding their own key words, creates their own extensions, which only work with that specific library, or function differently for similar libraries.
JSON Schema draft-8 adds a new concept. Vocabularies. Allowing groups to specify new sets of keywords, and schemas to identify as using a set of keywords.
Learn about these and other draft-8 keywords, such as `unevaluatedProperties`, which can "see through" conditional applicators, a common user wish.
JSON Schema lead and wearer of many hats, now full time on JSON Schema thanks to Postman. Committed to making JSON Schema better than it was yesterday.
