Expanded release notes
Made it clear signed images is a preview feature and added a little more info about how the feature works. Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)
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@ -110,14 +110,20 @@ ability to configure things like volumes or port mappings before the container
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is started. For example, in a rapid-response scaling situation, you could use
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`create` to prepare and stage ten containers in anticipation of heavy loads.
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*New provenance features*
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Official images are now signed by Docker, Inc. to improve your confidence and
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security. Look for the blue ribbons on the [Docker Hub](https://hub.docker.com/).
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The Docker Engine has been updated to automatically verify that a given Official
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Repo has a current, valid signature. If no valid signature is detected, Docker
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Engine will use a prior image.
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*Tech preview of new provenance features*
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This release offers a sneak peek at new image signing capabilities that are
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currently under development. Soon, these capabilities will allow any image
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author to sign their images to certify they have not been tampered with. For
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this release, Official images are now signed by Docker, Inc. Not only does this
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demonstrate the new functionality, we hope it will improve your confidence in
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the security of Official images. Look for the blue ribbons denoting signed
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images on the [Docker Hub](https://hub.docker.com/).
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The Docker Engine has been updated to automatically verify that a given
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Official Repo has a current, valid signature. When pulling a signed image,
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you'll see a message stating `the image you are pulling has been verified`. If
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no valid signature is detected, Docker Engine will fall back to pulling a
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regular, unsigned image.
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*Other improvements & changes*
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