It took careful work to recover the UNIX V4 operating system from the 9-track magnetic tape. The software is foundational for ...

I booted UNIX V4 (first C rewrite) in a PDP‑11 emulator. It feels tactile—no backspace, staggered print, slower typing, and ...

iPhone 用的 iOS 和 Mac 上用的 MacOS 都基于 Darwin 内核（类 Unix 架构），底层架构、核心生态与设计逻辑高度一致；硬件上，M 芯片和 A 芯片也是类似的情况，理论上来说系统是可以互刷的。

Since the beginning of December, Apple has been pushing iPhone users who opted to stay on iOS 18 to install iOS 26 instead. Apple started by making the iOS 18 upgrades less visible, and has now ...

iOS 26.2 has arrived just in time for the weekend. While the update isn’t a major overhaul, it brings numerous changes and refinements, including more Liquid Glass tweaks. More importantly, iOS 26.2 ...

Last Friday, Apple released iOS 26.2 to all iPhone users. Bringing with it several new features and important security patches, this will be the last major software update from Apple before the year ...

Screenshot iOS 26.2 fixes 26 flaws in Apple’s iOS software, two of which are already being used in real-life attacks. Update Dec. 14: This article, originally published on Dec. 13, has been updated to ...

Apple is preparing to roll out iOS 26.2, an update designed to enhance performance, strengthen security, and refine existing features. This release focuses on improving system stability and user ...

Apple is now recommending users upgrade from older operating systems to iOS 26 for the latest security fixes. Before updating your iPhone, back up your phone. This lets you keep your data safe by ...

iPhone users are divided on iOS 26 and Liquid Glass. But general opinion might not be what you think. Apple has begun actively encouraging iPhone users to move from iOS 18 to iOS 26, and social media ...

Apple is now recommending that iPhone users update to iOS 26, changing it from an optional upgrade. Users with an iPhone 11 or newer can download and install the iOS 26 update. While users can remain ...

Apple's iOS 26.2 update is expected to be released between December 11 and December 15, 2025. The update will introduce several new features, including a "Tinted" mode, a Sleep Score, and enhanced ...