Need to mention that in the guide. Also, if there's a new way to handle system properties or environment variables, that could be part of the new features.
I should also mention migration from previous versions if there are breaking changes. But since the user didn't specify, I can note that it's a backward-compatible update with minimal breaking changes, and provide any necessary tips for upgrading.
I should outline the guide in sections. The structure could include an introduction to Hutool, new features overview, detailed examples, best practices, and troubleshooting tips. Each new feature section should explain what's new, how to use it, and maybe code examples. hutool 39 new
First section: Introduction. Briefly explain what Hutool is and why it's useful. Then mention the key updates in version 3.9.
import cn.hutool.core.bean.BeanUtil;
Need to ensure the examples are syntactically correct. For instance, using the new DateUtil method:
Examples are crucial. For each new feature, a short code example. Make sure the code is correct and shows practical applications. For instance, using a new method in BeanUtils to convert a Map to a Bean with nested properties. Need to mention that in the guide
import cn.hutool.http.HttpUtil;
Date date = DateUtil.parseIso8601("2023-10-10T12:30:45Z"); System.out.println(DateUtil.format(date, "yyyy-MM-dd HH:mm:ss")); But since the user didn't specify, I can
import cn.hutool.json.JSONObject;