Hutool 3.9 Upd < 90% EXCLUSIVE >

RSA and SM2 (SM national standard algorithms). Digest Algorithms: MD5, SHA-1, SHA-256, and Hmac. hutool-http: Lightweight Client Execution

Instead of writing extensive code to load properties, use Setting or Props : Hutool 3.9 UPD

Run a regression test. While most methods survive the upgrade, check the changelog for specific classes that may have moved (e.g., some Excel-related tools moved to hutool-poi ). RSA and SM2 (SM national standard algorithms)

Hutool 3.9 remains an important evolutionary milestone in the Java utility space. By modularizing its structure, optimizing core I/O loops, and simplifying daunting tasks like cryptography and Excel manipulation, it proved that developer productivity does not have to be sacrificed for enterprise-grade performance. While most methods survive the upgrade, check the

: Protection against older vulnerabilities (CVEs) found in early versions.

Streamlines complex Excel and Word operations using Apache POI.

String content = FileUtil.readString("path/to/file.txt", CharsetUtil.CHARSET_UTF_8); Use code with caution. B. Enhanced Encryption/Decryption Tools ( SecureUtil )