The Challenge

Spring Boot 4.1 is here, but most organizations are still running earlier versions like 2.x or 3.x across large, distributed codebases. Version drift happens, and it compounds over time. Whether your next upgrade is 2.x to 3.5 or 3.5 to 4.1, the preparation steps are the same, and they're the difference between a migration that ships and one that stalls.

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Why Attend

In this hands-on training, you'll see how modern platform and application teams are executing Spring Boot 4.1 migrations at portfolio scale, using agents equipped with the right context to ship quickly but safely.

You'll see how Moderne Trigrep can help surface your full migration scope across the repo estate in seconds, and how Moderne Prethink gives your coding agents (Claude Code, Cursor, Copilot) pre-resolved dependency graphs and architectural context so they reason over facts instead of reconstructing them from source files on every run.

The result: a migration that's coordinated, visible, and shipped in waves, not a service-by-service grind that takes quarters.

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What You'll Learn

• How to build a version inventory and identify migration hotspots, and order of services to migrate
• How Moderne Prethink gives coding agents the pre-resolved context to reason over facts, not source files
• How to use semantic search recipes like Dependency Insight and Find Deprecated Uses along with Trigrep rapid search to surface risk
• The recommended sequence for JUnit, Java, JSpecify, and Spring Boot 3.5.x upgrades
• How to reduce friction and shorten the timeline of your next Spring Boot migration