It seems that the Pull Request you’re referring to is undefined or lacks specific details. Without any information regarding the changes, features, fixes, or context of the PR within the Thanos project, I can’t provide a meaningful summary.

To assist you better, please provide some details about the PR, such as:

1. Title and description of the Pull Request.
2. Key changes or features introduced.
3. Any relevant context (bug fixes, enhancements, etc.).
4. Related issues or discussions.

Once you provide this information, I can help summarize it appropriately!