In V1, developer can obtain a list of collaborators for a specific version of a page using the endpoint /rest/api/content/:id/version?expand=collaborators.user
.
In V2, to get a list of all collaborators across all versions of a page, users must:

• Retrieve a list of all versions of a page using /api/v2/pages/:id/versions.
• For each version, make an individual API request to /api/v2/pages/:page-id/versions/:version-number to obtain the collaborators of the page.

This results in 1 + [every version] API calls, which is inefficient and burdensome, particularly for pages with numerous versions.

As a developer, we would like to have a new endpoint or the enhancement of an existing one to allow users to retrieve all collaborators across all versions of a page in a single API call.