Hutool’s "Core" remains the heart of the library, and 5.8.39 introduces several "quality of life" features:
Hutool’s maintainers (Looly et al.) enforce strict semantic versioning. Upgrading from 3.8.x to 3.9.x requires zero code changes for 95% of projects.
If you are looking for specific module updates (e.g., hutool-core , hutool-crypto , or hutool-cache ), these are typically bundled in the hutool-all artifact. hutool/README-EN.md at v5-master - GitHub hutool 39 new
Hutool 3.9 was developed with a focus on enhancing stability, increasing the efficiency of existing modules, and introducing new utilities that reflected the evolving landscape of Java development. 1. Robustness and API Stabilization
Improves outbound REST requests resilience under sudden load spikes. SAX-mode Excel reading optimizations. Hutool’s "Core" remains the heart of the library, and 5
Given that we are now in the era of Java 21, is learning "hutool 39 new" a waste of time?
// Store in session (simplified) SessionUtil.setAttribute("oauth_state", state); hutool/README-EN
For modern reactive gradle applications, simply introduce the configuration inside your build.gradle dependencies collection: implementation 'cn.hutool:hutool-all:5.8.39' Use code with caution.
Java 8’s streams are powerful, but verbose. Hutool 3.9 introduced CollUtil methods that mimic functional programming without the lambda boilerplate for simple tasks.
Run grep -r "SecureUtil.md5" src/ before upgrading. Replace with DigestUtil.md5Hex() if you need checksums only.
For Gradle build pipelines, insert this snippet into the dependencies block of your build.gradle file: implementation 'cn.hutool:hutool-all:3.9.0' Use code with caution.