It appears that there is no specific content or details available for the Pull Request you are referring to for the project thanos-io/thanos. Without any information about the changes proposed in the Pull Request, its purpose, or the context within the Thanos project, I’m unable to provide a meaningful summary.

If you could provide details such as the title, description, or key changes introduced in the Pull Request, I would be happy to help create a coherent summary for an advanced developer.