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I have a small Spring Boot project running on older dependencies (Spring Boot 2.x, Java 11) that needs to be updated to the latest versions. The app works fine, but it’s time to modernize it — just want to update the libraries and make sure everything builds and runs correctly afterward. 💰 Budget: $50 (fixed) Scope Upgrade project to Spring Boot 3.3.3 and Java 21 Update outdated dependencies in pom.xml (Spring Data, Hibernate, MySQL driver, etc.) Fix minor compatibility issues or deprecated imports Verify successful build and startup Provide a short summary of changes made Tech stack Java 21 Spring Boot 3.3.3 Maven MySQL, REST API I will provide GitHub access to the repository Build logs / test credentials if needed Expected outcome ✅ App builds successfully on Java 21 ✅ All dependencies updated to stable versions ✅ App starts normally and endpoints respond ✅ Short summary of updates