14 Aug, 2022

This is a major release with lots of new features, plenty of bugfixes, significant internal rewrite and, therefore, some breaking changes.

What's new

EditorState
Now the form component and its state are separate. This will allow for the component to be used as a library in other Node projects.
Schema validation
Schema will be validated for errors while new form component is created.
File uploads
New keyword called handler has been added for file uploads. Use this to provide the URL endpoint where files will be uploaded to.
New APIs for browser component
APIs for controlling the form component in the browser such as handling change events and dynamically updating the schema.
Exception reporter for browser component
New exception reporter will now display schema errors in the browser. Currently, it's primitive but will evolve in future.
Docs, Live demos, Interactive playground
https://bhch.github.io/react-json-form/.

#32: Display help text under "Select file" button (of file-url field).
#33: If default value for integer type was 0, it was being overwritten by null.
#34: Make multiselect widget work on top level arrays.
#35: Boolean type will be null by default. Earlier, the default for boolean was false.
#36: Make select input respect falsy values.
#37: Add support for date-time (from the standard spec) as an alias for datetime.
#39: Respect minItems when creating or syncing arrays.

If you directly use the Form component (such as in Node projects), the following notes are for you.

Renamed Form component to ReactJSONForm.
Removed fileListEndpoint and fileUploadEndpoint props. Now use fileHandler prop instead.
The form component will requires two compulsory props: state (instance of EditorState) and onChange (a callback function for handling the changes).
Boolean type will be null by default. Earlier, the default for boolean was false.

If you use the component in the browser (and not in Node projects), the following notes are for you

Removed JsonForm function which was used for creating the form component in browsers. Instead use the new createForm function.
Removed uid config option.
Removed fileListEndpoint and fileUploadEndpoint config options. Use the new fileHandler option which serves the purpose of both.