Hutool 3.9 Upd Jun 2026

The DateUtil class is perhaps the most used part of Hutool. The 3.9 update focused on "safety" and "localization":

She frowned. She had used StrUtil.blankToDefault() a thousand times. It was supposed to take a string and, if blank, return a default value. It never threw exceptions. Hutool 3.9 UPD

Here is a quick look at why this update matters and how it helps you write cleaner, more efficient code. 1. Refined Core Utilities The DateUtil class is perhaps the most used part of Hutool