Page History

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• Add the feature of clearing errors to `flush()`: `flush()` is not necessarily a transactional method + `AddPartition` is not done successfully in the next `send`.
• Add the feature of clearing errors to `commitTxn()`: `flush()` is not necessarily a transactional method + `AddPartition` is not done successfully in the next `send`.
• `send()` throws ApiException: may break backward compatibility.
• No need of explicit `flush()` before calling `commitTransaction(commitOptions)` :  not safe + `AddPartition` is not done successfully in the next `send`

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