Worked on the CocoaPods/Specs repository to upgrade FirebaseFirestoreInternalBinary and FirebaseFirestoreBinary to version 12.4.0, ensuring downstream projects could access the latest Firestore features and bug fixes. The process involved updating the relevant specs and podspec files, aligning dependency management practices to reduce drift with Firebase releases. Leveraged skills in CocoaPods, package management, and mobile development, using Objective-C and Ruby to implement and document the changes. Provided clear upgrade paths and release notes to assist maintainers and users in adopting the new version. The work focused on maintaining compatibility and streamlining dependency updates for mobile development workflows.