It seems that you referred to a “undefined Pull Request” for the Thanos project but did not provide any specific details or context about the pull request. Therefore, I’m unable to create a summary without more information.

If you can provide details such as:

• The title and description of the Pull Request
• The main changes or additions being made
• Any issues it addresses or features it implements
• Relevant discussions or comments

With that information, I would be able to craft a concise summary suitable for an advanced developer.