Tag: spring
All the articles with the tag "spring".
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GraalVM native image with Spring Boot 4 — startup gains, build costs, and when it's worth it
postGraalVM native image can cut Spring Boot startup from seconds to milliseconds and halve memory usage. Spring Boot 4 ships improved AOT support and requires GraalVM 25. This post covers the real performance numbers, every meaningful limitation, and a decision guide for when native is worth the build complexity.
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Spring Boot 3 to Spring Boot 4 migration guide
postSpring Boot 4.0 is a major version upgrade that drops Java 8/11 support, ships Jackson 3, removes Undertow, and cleans out years of deprecated APIs. This post walks you through a phased migration plan, every common breakage, and a rollback-safe rollout strategy.
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Async context propagation improvements in Spring Boot 4.1
postSpring Boot 4.1 improves how Micrometer observation context, security context, and MDC values carry over to async threads. Learn why context used to get lost, what changed, and how to configure it.
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Fine-grained Jackson configuration in Spring Boot 4.1
postSpring Boot 4.1 adds dedicated spring.jackson.read.* and spring.jackson.write.* properties so you can control serialization and deserialization separately without touching Java code. Here's what changed and how to use it.
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JmsClient in Spring Boot 4.x for cleaner messaging code
postSpring Boot 4.x adds auto-configuration for JmsClient, a modern alternative to JmsTemplate with a fluent API. Learn what made the old approach painful, what changed, and how to migrate.