The Spring Boot Migration Tool for Enterprise-scale Upgrades
Automate Spring Boot upgrades across hundreds of services with safe, scalable code transformations
65% of Spring and Spring Boot users still rely on manual upgrade processes.
- The State of Spring 2024
Spring Boot is core to many modern Java services. But manual, repo-by-repo upgrades don’t hold up as systems grow.
Over time, versions drift, security fixes slip, and upgrades become harder to coordinate. What should be routine maintenance slowly turns into compounding technical debt.
On-demand training
Preparing for your next spring boot migration
A practical, hands-on training for teams on 2.x, 3.x, or planning for 4.x. Learn Spring Boot migration patterns, common pitfalls, and how to automate large-scale upgrades without slowing delivery.
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Why Spring Boot upgrades break down at scale
- Older Spring Boot versions lose OSS support, increasing security and compliance risk
- Multiple Spring Boot versions across services create fragmentation and inconsistent baselines
- Framework and dependency changes, including Jakarta-related shifts, introduce cascading complexity
- Manual, repo-by-repo upgrades don’t scale beyond a small number of services
- Migration guides fall short in real-world environments with custom frameworks and shared libraries
Spring Boot upgrades are no longer isolated framework updates. As versions age and the ecosystem evolves, keeping large application portfolios current becomes a coordination problem, not a lack of expertise.
CAST STUDY
SquareSpace sees faster modernization and dramatically reduced effort with Moderne
What to look for in a Spring Boot migration tool
Enterprise teams need more than code suggestions. A Spring Boot migration tool must support modernization at portfolio scale.
Semantic correctness
Ensures code changes are safe and accurate by understanding program intent—not just syntax—reducing the risk of subtle runtime issues.
Automated dependency updates
Updates dependencies and build configurations automatically, keeping projects aligned without manual intervention or brittle scripts.
Multi-repository orchestration
Coordinates changes across many repositories and teams, enabling consistent upgrades without manual sequencing or coordination overhead.
Style and formatting preservation
Maintains existing formatting and coding conventions so upgrades integrate cleanly with current codebases and review workflows.
Automated Java and Jakarta upgrades
Handles Java version upgrades and Jakarta namespace and API migrations automatically, reducing manual effort and upgrade risk.
Portfolio-wide visibility
Provides insight into upgrade progress, coverage, and risk across the entire application portfolio—not just individual repositories.
Built-in security alignment
Applies security updates that align with supported Spring versions, helping teams stay secure without managing patches manually.
The Spring Boot migration tool built for scale
Moderne enables deterministic, repeatable Spring Boot modernization across entire code estates, with testable changes powered by Lossless Semantic Trees for accuracy at enterprise scale.
Enterprise-wide impact analysis
Understand which services are affected, what versions they’re running, and what changes are required before applying upgrades.
Deterministic, organization-approved upgrades
Apply the same validated Spring Boot upgrade recipes across all repositories to ensure consistency and reduce regression risk.
Coordinated pull requests at scale
Roll out upgrades across hundreds or thousands of repositories with automated, reviewable PRs that fit existing developer workflows.
Campaign-level visibility and tracking
Track upgrade progress, adoption rates, and key milestones across teams using DevCenter dashboards—without spreadsheets or manual reporting.
Our developers now spend less time worrying about legacy code and more time focusing on value-driven work.
Moderne delivers comprehensive spring boot coverage
Moderne's recipes cover:
- Spring Boot version upgrades through 4.0
- Java alignment (including Java 17, Java 21, and Java 25)
- Dependency updates across Spring modules and third-party libraries
- Configuration and property migrations
- Spring Security modernization
- Performance, cloud-readiness, and security hardening updates
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Moderne vs other approaches
Organizations evaluating Spring Boot 4 upgrades often explore other options—but most fall short at scale
Moderne
Enterprise-scale orchestration
Moderne applies validated recipes across the entire code estate, with impact analysis, coordinated PRs, and centralized progress tracking.
Semantic correctness
Moderne uses Lossless Semantic Trees to deliver deterministic, format-preserving transformations across hundreds or thousands of services.
Portfolio-wide upgrade control
Moderne coordinates Spring Boot migrations across teams and repositories, enabling controlled rollouts and portfolio-wide visibility.
Others
Repo-by-repo execution
Platforms using OpenRewrite recipes typically operate repo-by-repo with limited portfolio visibility and coordination.
Syntax-level automation
AST- and regex-based tools automate basic changes but struggle with semantic accuracy and consistency at scale.
Individual developer tooling
IDE-driven refactoring or AI assistants are helpful for individual developers but cannot coordinate, track, or govern enterprise-wide migrations.
Frequently Asked Questions
