Worked on the CocoaPods/Specs repository to deliver a critical upgrade of the Google Mobile Ads SDK to version 12.12.0, focusing on maintaining compatibility with Google’s evolving monetization stack and upcoming app builds. The work involved integrating new SDK files and updating existing components to align with the latest SDK requirements, all implemented in Ruby. Emphasizing mobile development and SDK integration, the changes were consolidated into a single commit for streamlined review and reduced upgrade risk. This update improved ad performance and reliability across platforms while ensuring seamless integration with current build and CI pipelines, supporting ongoing app monetization efforts.