Worked on the rootstrap/rails_api_base repository to deliver a Ruby version upgrade, moving the codebase from Ruby 3.3.5 to 3.4.1. This involved updating the .ruby-version file, Dockerfile, and Gemfile to ensure full compatibility with the latest Ruby features and security patches. The upgrade process focused on validating the environment through continuous integration and passing test suites, with attention to maintaining stability and preparing for future enhancements. Leveraged skills in Docker, Ruby on Rails, and version management to modernize the runtime environment, reduce technical debt, and establish a secure foundation for upcoming feature development within the Rails API.