iPhone OS 3 (stylized as iPhone OS 3.0) is the third major release of the iOS mobile operating system developed by Apple Inc., succeeding iPhone OS 2. It was announced on March 17, 2009, and was released on June 17, 2009.

iPhone - 使用手册 (适用于 iPhone OS 3.1 软件) Apple Footer Apple. 支持

2009年9月9日 · iPhone's 3.1 software update brings some new features with it, and also patches a few bugs along the way.

iPhone OS 3是美國 蘋果公司旗下行動作業系統 iOS（時稱為iPhone OS）的第三個主要版本，取代前代作業系統iPhone OS 2。iPhone OS 3於2009年3月在蘋果位於加州 庫帕提諾的公司總部中首次公布，並於同年6月17日正式推出。

Download current and previous versions of Apple's iOS, iPadOS, watchOS, tvOS, audioOS and macOS firmware and receive notifications when new firmwares are released.

2025年3月21日 · iPhone OS 3 (codenamed Kirkwood) is the third version of iPhone OS that was released on 17 June 2009. It was first announced on 17 March 2009. This was the last version to be branded as "iPhone OS" before being changed to "iOS". The system-wide cut, copy, and paste features have been added for text and images. Spotlight search has been added.

2017年4月13日 · iPhone OS 3.1.3采用了经典的滑动解锁，每次解锁都伴随着令人满足的音效和动效，这种解锁方式虽在今日司空见惯，而在当年，不知多少人被这种有趣的解锁方式深深吸引。 iOS 10.3.1则采用按下主屏幕按钮的方式解锁，虽多了方便，却少了一丝满足。 2013年可谓是iOS设计风格的分水岭，此前拟物，此后扁平。 从两台设备的主屏幕上，我们便可看出这两类UI设计的区别。 iPhone OS 3.1.3的图标设计忠诚于自然界中物体的真实样子，iOS 10的扁平化图 …

2018年3月6日 · Complete review of Apple's iPhone OS 3.1 software for iPhone and iPod touch. On the fence about downloading iPhone 3.1? Wondering what's changed since iPhone 3.0? Need a handy link to send your friends who may have questions? We've's got your back with our complete iPhone 3.1 Software Walkthrough.

iPhone OS 3 is the third and last major version of iPhone OS, as it was succeeded by iOS 4. iPhone OS 3 was announced by Apple on June 8 at the 2009 Worldwide Developers Conference, and was released on June 17, 2009.

2010年2月3日 · Amidst all the rumors about iPhone OS 4.0 and iPhone OS 3.2 beta, Apple has quietly released iPhone OS 3.1.3 and it is available for download right now! iPhone OS 3.1.3 addresses...