It appears that the details of the Pull Request for the project thanos-io/thanos are not provided. To create a meaningful summary, I would need specific information such as the changes being proposed, the reasons for the modifications, any relevant context about the associated issue or feature request, and the impact of the changes on the codebase or functionality.

If you can provide more details about the Pull Request, I’d be happy to help you craft a summary tailored for an advanced developer.