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## Other schema changes
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33Changes since the most recent release will accumulate here.
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5## Other schema changes
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71. Restore the optional `_meta` field on `CreateMessageRequestParams`, `ElicitRequestFormParams`, `ElicitRequestURLParams`, `ElicitResult`, and `ListRootsResult`. It was unintentionally dropped in 2026-07-28 when these types stopped extending `TaskAugmentedRequestParams` and `Result`, leaving `ListRootsRequest` as the only input request that could carry `_meta` ([#3468](https://github.com/modelcontextprotocol/modelcontextprotocol/issues/3468)).
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