It seems that there is no specific information provided regarding the Pull Request for the Thanos project. To summarize a Pull Request effectively, I would typically need details such as the main objectives, changes introduced, files affected, rationale behind the modifications, and any relevant discussion or reviews.

Since the content is undefined, please provide more context or a summary of the key points related to the Pull Request, and I will be able to help you create a comprehensive summary for an advanced developer.