I will upgrade your spring boot application and fix migration issues

Is your Spring Boot application failing after an upgrade, stuck on an older version, or facing dependency and compatibility issues?

I can help you upgrade, migrate, and troubleshoot your Spring Boot application, including migrations to the latest Spring Boot 4.x versions, while keeping your existing functionality stable.

What I can help with:

Spring Boot 2.x 3.x migration

Spring Boot 3.x 4.x migration

Spring Boot 2.x 4.x upgrade planning and migration

Spring Boot minor and patch version upgrades

Java version compatibility and upgrade issues

Maven and Gradle dependency conflicts

Deprecated or incompatible dependency replacement

Compilation and application startup errors

Spring configuration and properties migration

Spring Security migration and compatibility issues

REST API issues caused by framework upgrades

Jakarta / dependency compatibility issues

Library and plugin compatibility fixes

Code cleanup related to migration

Basic testing and verification after the upgrade

I work primarily with Java and Spring Boot backend applications and focus on clean, maintainable fixes instead of unnecessary rewrites.

Whether you have a small dependency issue or need help moving an existing applic