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## 4.32.1

**`(fix):`** Unknown JSON keys that match a declared property's wire name case-insensitively (e.g. `VALUE` next to
`value`) are no longer kept in `additionalProperties`, so they are not re-emitted on serialization where a
case-insensitive, last-wins decoder downstream would read them instead of the declared field. Non-colliding
unknown keys are still preserved and round-tripped.