Is the graphQL approvalsRequired property on Merge Request tied to a specific GitLab edition?

We’ve built an app that uses the GitLab api and allows users to view their Merge Requests. A user that is on version {“version”: “13.10.2”,“revision”: “7efd19e3716”} is reporting to us an error that a field we use in the graphQL query ‘approvalsRequired’ doesn’t exist on type ‘MergeRequest.’ According to the docs it should be there in version 13.10 => GraphQL API Resources | GitLab

Is that property tied to a different version, or perhaps a different edition of GitLab?