React-jsonschema-form: ANNOUNCEMENT: Breaking changes planned for v3

[epicfaace]

The next version of rjsf will be v3, and we'll add a few breaking changes to it.

Planned changes

PRs that are nearly ready and will be added in v3:

• [ ] refactor: types for withTheme #2279
• [x] No core-js in core #2211
• [x] Drop support for node 8 / 9 #2031
• [x] Drop support for node 10 #2299
• [ ] Maintain AJV properties when custom validator is in use. #2002

Other potential changes

If someone makes PRs for these issues, we might be able to get them into v3.

• noHtml5Validate should be true by default #1184
• Fieldset preventing flexbox styling #762

These PRs would be good to add, but still have some work to do on them:

• support if/then/else, breaking change is removing the dependency on json-schema-merge-allof https://github.com/rjsf-team/react-jsonschema-form/pull/1666

Have suggestions for changes / additional items we should add to this list? Feedback welcome!

cc @ri0ter @erunion @stanlemon @mattcosta7 @zepatrik @wegry @jimmycallin @robophred @bmmpt

[wegry]

@epicfaace I was hoping the react-is bump might make it into v3 as well. https://github.com/rjsf-team/react-jsonschema-form/pull/2196.

[epicfaace]

Oh, is that a breaking change? If not, we can still get it in either in v3 or sometime later, but the scope of this issue is just categorizing the breaking changes (because they _have_ to be released on a new major bump).

[wegry]

Sounds good.

Is that a breaking change?

I don't believe so. Just something I've been hankering for.

[mattcosta7]

@epicfaace sounds good to me.

I noticed there's a few things tagged with 'deprecated' in the codebase. might be a good time to clean those as well.

Particularly

• autocomplete vs autoComplete
• ui:widget object API, where a widget and options were specified with "ui:widget": {component, options} shape

[jimmycallin]

Sounds good! Might want to look into the discussions in this PR and consider them as well https://github.com/rjsf-team/react-jsonschema-form/pull/2010

[stanlemon]

Some thoughts...

• Previously we discussed swapping out native controls in the Material UI theme for their provided ones, specifically the date picker.
• Any widget built around arrays and nesting requires a lot of work in a new theme, it would be great if to make that a lighter lift.
• This might be controversial, but perhaps we drop the verbose date picker with tons of selects altogether.

[jimmycallin]

@epicfaace You also mentioned this old PR of mine to be a breaking change https://github.com/rjsf-team/react-jsonschema-form/pull/1522

might be time to merge it then (or let me know if you want me to revert the breaking change part). personally i would love to see rjsf to be strict mode valid as a part of v3.

[gsstar9028]

@epicfaace Please consider including https://github.com/rjsf-team/react-jsonschema-form/pull/2272

[epicfaace]

@gsstar9028 no worries, it's already been merged into master, so it will be included!

[epicfaace]

personally i would love to see rjsf to be strict mode valid as a part of v3.

@jimmycallin Agreed, that would be nice! (so we'd need to stop using unsafe component lifecycle methods) Sorry for the delay in responding to your other PR.