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    API previews

    You can use API previews to try out new features and provide feedback before these features become official.

    API previews let you try out new APIs and changes to existing API methods before they become part of the official GitHub API.

    During the preview period, we may change some features based on developer feedback. If we do make changes, we'll announce them on the developer blog without advance notice.

    To access an API preview, you'll need to provide a custom media type in the Accept header for your requests. Feature documentation for each preview specifies which custom media type to provide.

    GitHub App Manifests

    GitHub App Manifests allow people to create preconfigured GitHub Apps. See "Creating GitHub Apps from a manifest" for more details.

    Custom media type: fury-preview

    Content attachments

    You can now provide more information in GitHub for URLs that link to registered domains by using the Content Attachments API. See "Using content attachments" for more details.

    Custom media types: corsair-preview Announced: 2018-12-10

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