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**Breaking changes**
- ``kinto-wizard load`` now expects to find a ``buckets:`` root level in
the YAML file. And ``kinto-wizard dump`` will now add it (fixes 59)
**New feature**
- Add a ``validate`` command to run JSON schema validation on the records
locally. (fixes 61)
**Internal changes**
- To ease the transition between kinto-wizard 3 and kinto-wizard 4,
handle both for a couple of releases. (64)