Worked on the getsentry/sentry-java repository to enhance security and stability by upgrading Spring Boot from version 2.7.5 to 2.7.18. Focused on addressing multiple security vulnerabilities and ensuring continued compatibility for downstream users relying on Spring Boot 2. The technical approach involved dependency management and security patching, with careful updates to build tools and the project changelog to document the changes. Utilized Kotlin and Markdown throughout the process, emphasizing maintainability and transparency. No new features were introduced during this period, but the work ensured the codebase remained secure and up to date for ongoing development and user support.