npm / @rjsf/core

@rjsf/core

What changed in @rjsf/core 6, from its official release notes, upgrade guides and advisories. Also covers @rjsf/utils, @rjsf/validator-ajv8. Sources checked 2026-10-19.

7 breaking17 new APIs and options1 performance2 behavior and defaults17 fixes and other

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@rjsf/core 644 changes

Breaking changes 7

Adds path-based property lookup; bare strings are literal keys, and lookup resolves own properties only.
6.9.0release notes
Adds path-based property presence checks; bare strings are literal keys, and checks resolve own properties only.
6.9.0release notes
RJSF packages no longer depend on lodash; applications relying on it being hoisted must declare it in their own package.json.
6.9.0release notes
A required boolean field now defaults to false when the schema has no default.
6.9.0release notes
Adds a path-based setter; bare strings are treated as literal keys, while dotted paths can be parsed with toPath().
6.9.0release notes
Adds explicit parsing of lodash-style dotted path strings for use with the new path utilities.
6.9.0release notes
Adds a path-based property remover; bare strings are treated as literal keys, while dotted paths can be parsed with toPath().
6.9.0release notes

New APIs and options 17

Adds requiredBooleanDefault: skip leaves required booleans without a default undefined, while the default populateFalse preserves the 6.9.0+ behavior.
6.11.0release notes
Adds a helper for the shared widget-name and enumOptions fallback logic used by StringField and NumberField.
6.10.1release notes
Adds a helper to detect conditionals nested below a schema's top level, allowing sanitization to run when the root retrieved schema looks unchanged.
6.10.1release notes
Added autocapitalize UI option handling to getInputProps() and the public input prop types.
6.10.0release notes
Adds an optional deep flag that descends into nested objects and same-length arrays, returning the dotted path of the changed field.
6.9.0release notes
Adds a helper to read a property's sub-schema, defaulting to an empty schema.
6.9.0release notes
Adds a stricter counterpart to isObject() that excludes class instances, replacing lodash/isPlainObject for consumers.
6.9.0release notes
Adds a do-nothing function to replace lodash/noop for consumers.
6.9.0release notes
Added a utility to detect locale-specific decimal separators.
6.7.1release notes
Added the CycleDetected key to enums.ts.
6.7.0release notes
Added the props type for the cyclic schema expansion template.
6.7.0release notes
Added a template for customizing the UI used to expand cyclic schemas.
6.7.0release notes
Added the ExpandButton key to enums.ts.
6.7.0release notes
Uses nestedDefaultsPrecedence to control how defaults defined on multiple levels are merged.
6.7.0release notes
Added a helper for theme select widgets to warn when a schema default is not present in the enum options.
6.7.0release notes
Added an option to control how defaults defined on multiple levels are merged.
6.7.0release notes
Added markCycleOnDetection to mark schemas detected to contain a cycle with RJSF_REF_CYCLE_KEY.
6.7.0release notes

Performance 1

Declares sideEffects as false so bundlers can tree-shake unused @rjsf/utils exports.
6.9.0release notes

Behavior and default changes 2

Parses locale-specific decimal strings.
6.7.1release notes
Selected option descriptions are now shown.
6.7.0release notes

Fixes and other changes 17

Merging allOf schemas now preserves Symbol-keyed properties and distinct allOf.contains branches, avoiding over-constrained schemas.
6.10.1release notes
When allOf is set to populateDefaults, computeDefaults merges a non-object schema's allOf so a $ref wrapped in a single-element allOf populates the same defaults as the bare $ref.
6.10.1release notes
Includes defaults from a dependency subschema when called without form data or with an empty object.
6.10.1release notes
Defaults number schemas to a text input in locales whose decimal separator is not a period, unless an explicit inputType is set, avoiding browser rejection of localized values.
6.10.1release notes
Resolves dependencies, if/then/else, and allOf on each property's old and new schema before comparing them, so nested conditionals are considered when sanitizing data.
6.10.1release notes
Fixed handling of existing arrays and stale undefined values when applying a new schema, retaining data or applying defaults for newly defined properties.
6.10.0release notes
Fixes recursive default merging when an object key's default is an array, preventing defaults in nested dependencies from being dropped.
6.9.0release notes
Stops over-reaching additionalProperties post-processing from stripping keys written by winning oneOf/anyOf and if/then/else branches.
6.9.0release notes
Fixed handling of arrays containing null and undefined values.
6.8.0release notes
With experimental_defaultFormStateBehavior.arrayMinItems.populate = 'never', optional arrays with no data remain omitted and required arrays default to [], allowing the validator to report minItems violations instead of surfacing invalid null items.
6.7.0release notes release notes
Now filters out RJSF_REF_KEY-prefixed keys before hashing schemas.
6.7.0release notes
Now treats empty tuple items arrays as fixed items so additionalItems schemas are handled consistently.
6.7.0release notes
Better handles allOfs containing multiple if/then/else blocks.
6.7.0release notes
Preserves an explicitly empty string title on oneOf/anyOf options instead of falling back to the option's value.
6.7.0release notes
Now preserves boolean conditional branches while resolving schemas.
6.7.0release notes
Preserves valid enum values while replacing or clearing stale values across enum, oneOf, and anyOf schema changes.
6.6.2release notes
Filters invalid enum values in arrays when sanitizing data for a new schema.
6.6.2release notes