原标题：Apple 发布 iOS 16、iOS 15.7、iPadOS 15.7、watchOS 9 和 tvOS 16正如它所承诺的那样，今天苹果公司已经为其许多设备发布了新的重要更新。
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A worker carries out surveying work at the construction site of Suihua South Station of the Harbin-Yichun high-speed railway in Suihua, northeast China's Heilongjiang Province, March 13, 2026. (Xinhua/Zhang Tao)A high-speed railway traversing a permafrost zone in northeast China's Heilongjiang Province entered trial operation on Thursday, bringing the country's northernmost bullet-train line one step closer to official service.
A test train departed Harbin, the provincial capital, at 7:40 a.m. and arrived in the forest city of Yichun two hours and two minutes later.
According to China Railway Harbin Bureau Group Co., Ltd., the trial run comprehensively verifies train scheduling, arrivals and departures, service frequency, passenger facilities and system compatibility to provide a scientific basis for the official opening of the railway.
With a designed speed of 250 kilometers per hour, the 318-km line will slash travel time between Harbin and Yichun from about seven hours to just two hours once it becomes operational.
Heilongjiang, long known as one of China's traditional industrial powerhouses built on steel, machinery and oil, is now pivoting toward new growth drivers. The new railway is expected to play a key role in the province's comprehensive revitalization, while boosting tourism and the development of its ecological assets.
Running through the alpine permafrost zone, the track has been designed with numerous bridges, which together account for 72 percent of the total length of this railway section.
。让我们从iOS 16开始。对 iOS 最新版本的更新于 6 月首次宣布，现已针对iPhone 8和更新型号推出，并将在本周五开始发货的新 iPhone 14 型号上预装（iPhone 14 Plus除外）它将于 10 月 7 日开始发布，但它也将随 iOS 16 一起发布）。对于无法更新到 iOS 16 的用户，Apple 还发布了 iOS 15.7，它解决了多个内核漏洞并修复了联系人、地图、Safari、快捷方式和 WebKit 的安全问题。iPadOS 15.7 也推出了相同的修复程序，这可能是我们将在iPadOS 16最终发布之前看到的最后一个 15.x 分支更新——由于新的 Stage Manager 多任务功能问题，这被推迟了。Apple确认了延迟，并且有传言称我们将直接使用 iPadOS 16.1，最早可能在下个月。watchOS 9也发布了，它具有新的表盘、重新设计的通知、支持在睡眠跟踪中显示睡眠阶段，以及一个新的药物应用程序，可以帮助你跟踪你的药物、维生素和补充剂的摄入量。锻炼应用程序中还有新的自定义锻炼选项。此版本适用于Apple Watch Series 4和更新型号。最后，Apple TV 也没有被遗忘，tvOS 16 版本附带了对 Nintendo Joy-Cons 和 Nintendo Pro 控制器的游戏控制器支持。如果您将自动更新设置为开启，则所有这些更新都应该已经提供给您。如果没有，手动检查任何受支持的设备将导致立即下载。
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