Add multihash release note.
Related to blueprint multihash Change-Id: I3dd3c06f970b5d1e9373b3240863e3806e759811
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---
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features:
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- |
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This release adds client support for the Glance "multihash" feature
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introduced in Rocky. This feature introduces two new image properties,
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``os_hash_algo`` and ``os_hash_value``. The content of ``os_hash_algo``
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is an algorithm identifier recognized by the Python ``hashlib`` library.
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The ``os_hash_value``is a hexdigest of the image data computed using
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this algorithm. The ``os_hash_algo`` is not end-user settable; it
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is configured in Glance by the cloud operator. In the glanceclient,
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the feature is limited solely to the display of these values.
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If the "multihash" properties are not available on an image, their
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values are displayed as ``None`` in the glanceclient image-show and
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image-list responses.
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