It appears that your request refers to an undefined Pull Request for the Thanos project, which means specific details about the changes proposed in the Pull Request are not available. To create an effective summary, I would need information such as:

• The main objective of the Pull Request (e.g., bug fix, new feature, performance improvement)
• The files or components affected
• Key changes or code highlights
• Any related issues or discussions in the project
• Impact on existing functionality or performance
• Tests added or modified
• Any specific notes or considerations for reviewers

If you can provide any of this information or clarify the content of the Pull Request, I’ll be happy to help you summarize it!