Amir M. upgraded the Akeyless SDK from version 3 to 4 in the gitlabhq/gitlab-runner repository, focusing on improving maintainability and future compatibility. He refactored API calls such as GetSecretValue and GetDynamicSecretValue to return map[string]interface{}, updating related mocks and tests to match the new signatures. Using Go, Amir emphasized dependency management by removing unused modules, updating go.sum, and running go mod tidy to ensure clean, reproducible builds. His work addressed the evolving SDK requirements, enhanced test coverage for the updated API surface, and contributed to a more secure and stable dependency environment without introducing new bugs.