* enhancement:``s3``: Added support for flexible checksums when uploading or downloading objects.
0.5.1
=====
* enhancement:Python: Officially add Python 3.10 support
0.5.0
=====
* feature:Python: Dropped support for Python 2.7
0.4.2
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* enhancement:s3: Add support for ``ExpectedBucketOwner``. Fixes `181 <https://github.com/boto/s3transfer/issues/181>`__.
0.4.1
=====
* enhancement:``crt``: Add ``set_exception`` to ``CRTTransferFuture`` to allow setting exceptions in subscribers.
0.4.0
=====
* feature:``crt``: Add optional AWS Common Runtime (CRT) support. The AWS CRT provides a C-based S3 transfer client that can improve transfer throughput.