Hutool 3.9 Upd [portable] Jun 2026

And every year, on the anniversary of the midnight update, a single commit message would appear in the Hutool repo, pushed by an anonymous committer:

For developers working with Chinese national standard (Guomi) algorithms, 3.9 provided better stability and performance for these specific cryptographic ciphers. 2. Enhanced HTTP Client Capabilities

Introduced to allow logging without needing to instantiate a Logger object in every class. Why This Version Mattered

In traditional Java development, projects are frequently bogged down by custom Util packages. These homegrown utilities often lack rigorous testing, leak edge cases, and lead to significant code duplication across development teams. Hutool 3.9 UPD

Hutool AI模块的推出，大大降低了Java开发者集成AI能力的门槛。以往需要分别对接不同AI服务商的SDK，学习各自独特的API设计；现在通过Hutool的统一封装，开发者可以用一套简洁的API覆盖多种AI场景，学习成本和维护成本都得到了显著降低。

Hutool对项目的侵入几乎为零，它可以与Spring Boot、MyBatis-Plus等主流框架无缝集成。无论是作为独立工具库使用，还是作为框架生态的一部分，Hutool都能发挥其独特的价值——每个方法都是可被代替的，甚至整个Hutool也是可被替换的。这种无侵入性设计确保了开发者可以随时替换或移除Hutool而不会破坏整体系统架构。

URL url = new URL("https://example.com"); try (InputStream in = url.openStream(); OutputStream out = new FileOutputStream("image.png")) byte[] buffer = new byte[4096]; int bytesRead; while ((bytesRead = in.read(buffer)) != -1) out.write(buffer, 0, bytesRead); catch (IOException e) e.printStackTrace(); Use code with caution. Hutool Solution: And every year, on the anniversary of the

: This version is specifically required for handling BMWs with newer integration levels (I-Step), such as the

The latest update of Hutool offers numerous benefits to users, including:

// Fast string parsing Date date = DateUtil.parse("2026-05-19 18:00:00"); // Intuitive time relative math Date tomorrow = DateUtil.tomorrow(); Date threeDaysAgo = DateUtil.offsetDay(date, -3); // Direct time delta calculation long dynamicDays = DateUtil.between(date, tomorrow, DateUnit.DAY); Use code with caution. 3. Native IO and File System Operations ( FileUtil ) Why This Version Mattered In traditional Java development,

The 3.9 update brings several exciting new features that expand Hutool's capabilities:

Props props = new Props("config.properties"); String user = props.getProperty("user"); Use code with caution. Scenario 2: Image Processing ( ImgUtil ) Hutool makes it trivial to resize or convert images:

In addition to new features, Hutool 3.9 includes several enhancements and improvements: