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苹果今天又开始了新一轮的系统测试，向开发者和公测用户推送了 iOS10.3.3beta2 更新，距离第一个 iOS10.3.3 测试版大约2 周时间。

至于更新内容，iOS10.3.3 beta2 主要是以修复 bug 和改善性能为主。在 iOS10.3.3 第一个测试中，除了为 12.9 英寸 iPad Pro 推出专属新壁纸外，我们并未发现重要的新功能和显著的错误修复，可以推测 iOS10.3.3 就像 iOS10.3.2 一样，是一次小规模的更新，旨在引入安全性改进和错误修复。

之前已经升级 beta1 的用户可以直接在手机上 OTA 升级新的测试版。如果你还未曾安装过测试版，可关注同步推微信号获取描述文件来升级，无需开发者账号，无需申请公测资格，也可体验 iOS10.3.3 beta2。

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1.关注同步推微信号，回复“描述文件”即可免费获得 iOS10.3.3 升级文件