After the heading, a release must have Markdown content. This content can optionally start with a notice. Following that, a release of any kind must list changes grouped by category.
This is incorrect. If there's a notice, changes are optional. For example, on a first release or a promoted prerelease.
2.2. Release says:
This is incorrect. If there's a notice, changes are optional. For example, on a first release or a promoted prerelease.