Hands-on Spring Boot 3 to 4 migration: Jackson 3 pitfalls and automated fixes
therealdanvega · x · 2026-10-17
Dan Vega published a real-app walkthrough of upgrading Spring Boot 3 to 4 — bumping versions and fixing what breaks, not a slide deck.
He covers Jackson 3 changes, test updates, and missing auto-configuration, then demonstrates an automated approach using Application Advisor. Useful as a practical checklist for teams planning the migration.
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