Rendered here: https://docs.github.com/en/github-ae@latest/admin/release-notes
A content file exists in content/admin/release-notes.md. It has a special frontmatter property layout: release-notes and no Markdown content. The source of the release notes comes from YAML data.
The source data for the release notes lives in this directory (data/release-notes/github-ae).
The directories are named by month. The YAML files are named by the data of a weekly release.
A boolean property called currentWeek must be set in each YAML file. No more than one file at a time can have this property set to true.
Note that patch files can be deprecated individually (i.e., hidden on the docs site) by an optional deprecated: true property.
The YAML data is processed and sorted by middleware/contextualizers/release-notes.js and added to the context object.
The context object data is rendered by components/release-notes.
The release notes page has a custom design with CSS in stylesheets/release-notes.scss.
The schema that validates the YAML data lives in tests/helpers/schemas/ghae-release-notes-schema.js. See the schema file to find out the required and optional properties.
The schema is exercised by a test in tests/linting/lint-files.js. The test will fail if the data does not pass validation.