Schema previews

About schema previews

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 a schema 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.

Access to package version deletion preview

This preview adds support for the DeletePackageVersion mutation which enables deletion of private package versions.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.package-deletes-preview+json

Previewed schema members:

• Mutation.deletePackageVersion

Deployments preview

This preview adds support for deployments mutations and new deployments features.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.flash-preview+json

Previewed schema members:

• DeploymentStatus.environment

• Mutation.createDeploymentStatus

• Mutation.createDeployment

Merge info preview

This preview adds support for accessing fields that provide more detailed information about a pull request's merge state.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.merge-info-preview+json

Previewed schema members:

• PullRequest.canBeRebased

• PullRequest.mergeStateStatus

Update refs preview

This preview adds support for updating multiple refs in a single operation.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.update-refs-preview+json

Previewed schema members:

• Mutation.updateRefs

• GitRefname

• RefUpdate

Project event details preview

This preview adds project, project card, and project column details to project-related issue events.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.starfox-preview+json

Previewed schema members:

• AddedToProjectEvent.project

• AddedToProjectEvent.projectCard

• AddedToProjectEvent.projectColumnName

• ConvertedNoteToIssueEvent.project

• ConvertedNoteToIssueEvent.projectCard

• ConvertedNoteToIssueEvent.projectColumnName

• MovedColumnsInProjectEvent.project

• MovedColumnsInProjectEvent.projectCard

• MovedColumnsInProjectEvent.projectColumnName

• MovedColumnsInProjectEvent.previousProjectColumnName

• RemovedFromProjectEvent.project

• RemovedFromProjectEvent.projectColumnName

Create content attachments preview

This preview adds support for creating content attachments.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.corsair-preview+json

Previewed schema members:

• Mutation.createContentAttachment

Labels preview

This preview adds support for adding, updating, creating and deleting labels.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.bane-preview+json

Previewed schema members:

• Mutation.createLabel

• Mutation.deleteLabel

• Mutation.updateLabel

Import project preview

This preview adds support for importing projects.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.slothette-preview+json

Previewed schema members:

• Mutation.importProject

Team review assignments preview

This preview adds support for updating the settings for team review assignment.

To toggle this preview and access the following schema members, you must provide a custom media type in the Accept header:

application/vnd.github.stone-crop-preview+json

Previewed schema members:

• Mutation.updateTeamReviewAssignment

• TeamReviewAssignmentAlgorithm

• Team.reviewRequestDelegationEnabled

• Team.reviewRequestDelegationAlgorithm

• Team.reviewRequestDelegationMemberCount

• Team.reviewRequestDelegationNotifyTeam