# REST API preview promotions

DevFeed: [REST API preview promotions](<https://devfeed.tech/articles/rest-api-preview-promotions-74301.md>)

Original publisher: [Read original article](<https://github.blog/changelog/2021-10-14-rest-api-preview-promotions>)

Author: phanatic

Published: 2021-10-14T19:37:21Z

Content type: release

Language: en

Sources: [GitHub Changelog](<https://devfeed.tech/sources/github-changelog.md>)

Topics: [REST API](<https://devfeed.tech/topics/rest-api.md>), [API](<https://devfeed.tech/topics/api.md>), [GitHub API](<https://devfeed.tech/topics/github-api.md>)

Tags: [github](<https://devfeed.tech/tags/github.md>), [header](<https://devfeed.tech/tags/header.md>), [http](<https://devfeed.tech/tags/http.md>), [preview](<https://devfeed.tech/tags/preview.md>), [rest-api](<https://devfeed.tech/tags/rest-api.md>)

## AI overview

GitHub graduated 23 of 25 REST API previews, removing the custom Accept header requirement for those APIs. Two previews, content_references and code_of_conduct, still require the header and were planned for sunset later that year.

## Source excerpt

We have graduated twenty-three of the twenty-five existing previews that were in our REST API. Previously, REST API consumers needed to pass in a custom media-type via an HTTP accept...