Most recent JSON Schema version is not supported

[dwjohnston]

Prerequisites

• I have searched the existing issues
• I understand that providing a SSCCE example is tremendously useful to the maintainers.
• I have read the documentation
• Ideally, I'm providing a sample JSFiddle, Codesandbox.io or preferably a shared playground link demonstrating the issue.

What theme are you using?

core

Version

5.x

Current Behavior

As I understand it - The $schema keyword is used to point to a JSON Schema that describes the shape of a valid JSON schema itself.

The most recent version of the JSON Schema spec is 2020-12 https://json-schema.org/specification.html

If we try use a schema with

  "$schema": "https://json-schema.org/draft/2020-12/schema",

RSJF will show a validation error:

no schema with key or ref "https://json-schema.org/draft/2020-12/schema"

Expected Behavior

The most recent version of JSON schema should be supported.

Steps To Reproduce

1. Navigate to: https://rjsf-team.github.io/react-jsonschema-form/
2. Paste "$schema": "https://json-schema.org/draft/2020-12/schema", into the top level of the schema
3. Submit the form
4. Observe the validation error

Environment

Sandbox

Anything else?

No response

[heath-freenome]

@dwjohnston It is true that our UI code doesn't understand the newer syntax for the things that have changed. It works just fine using newer schemas that do not have the breaking changes between version 7 and 2020. We really could use some help to provide support for this in a backwards compatible manner. That said, you can easily switch the AJV validator to recognize the newer schemas so that your validator errors go away. See the documentation on how to do that.

[dwjohnston]

@heath-freenome

It is true that our UI code doesn't understand the newer syntax for the things that have changed. It works just fine using newer schemas that do not have the breaking changes between version 7 and 2020.

That's fine. Do you think you can update your docs somewhere to mention that the modern version isn't supported? For my use case I can probably just use schemas at the older version.

[nickgros]

Ideally the docs would capture the nuance in our support, perhaps with something like a compatibility table that indicates which newer draft features aren't supported in the form-rendering logic.

[nickgros]

Related to #3751