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* bugfix:Shorthand Syntax: Fix parser regression when a key name has an underscore character (`issue 1510 <https://github.com/aws/aws-cli/pull/1510>`__)
* feature:``aws s3``: Add support for ``STANDARD_IA`` storage class to the ``aws s3`` commands (`issue 1511 <https://github.com/aws/aws-cli/pull/1511>`__)
* feature:``aws logs``: Add support for ``create-export-task``, ``cancel-export-task``, and ``describe-export-tasks``.