iOS 4 is the final version of iOS that features the iPod app for music and videos on iPhones and iPads. Starting with iOS 5, iPhones and iPads do not have the iPod app, but instead have the Music and Videos apps, as the iPod Touch does.

2010年4月10日 · 此次发布的iPhone OS 4.0与iPhone OS 3.0相比不仅带来了多达100多项的全新功能改良，其多达7大项100个小项目的改进，其中包括支持蓝牙键盘、5倍数码变焦、主菜单墙纸等细节功能，下面我们就来看一下iPhone OS 4的七大改进：

With continuous efforts and research from the Blackview team, the latest Doke OS 4.0 further streamlines user operation while upholding clean and intuitive interfaces, bringing you an unprecedented efficient, smooth experience like never before.

2010年4月8日 · — At today’s announcement of iPhone OS 4.0, Apple unveiled seven major features in the latest version of its OS. Most of these additions came as no surprise–in fact, many were what we wanted...

Enjoy fantastic Service Widget interactions, effortless cross-device collaboration, and seamless SuperHub transfers provided by HarmonyOS 4, with more thoughtful privacy protection and digital care. Customise the colors and shapes of Service Widgets, and add text and stickers to give them a little extra flair.

红星os历代都是有多个版本的：个人版和服务器版（目前网上流通的都是个人版） 个人认为 红星OS4.0根本没有个人版 为什么？ 我们回到原来的报道：上面写着很多诸如更快的网络连接 大容量磁盘管理 而对界面和其他附加软件一概没提

惊喜预告：备受期待的文石 BOOX OS 4.0 系统即将震撼登场啦！ 此次系统更新亮点满满： 系统 UI 设计实现了全面优化，操作界面更加简洁美观、流畅易用； 阅读功能进一步完善，为用户带来更舒适、高效的阅读体验； 笔记功能也迎来了重大升级，新增扩边记、添加目录等多项实用功能，极大地提升了记录与整理的便捷性。 我们邀请了文石产品经理来给大家做一下新功能剧透，精彩不容错过，快来先睹为快吧！ 为啥不买iPad？ 用了一周墨水屏读写本，我悟了数码科技 文 …

With components built for payment business, SUNMI OS delivers tigher security and more reliable performance. PCI and EMV certified for top-notch security, reliability and usability to accelerate your payment business.

OS/2 Warp 4 incorporated a number of new technologies over OS/2 Warp 3, such as Java, OpenGL, OpenDoc, and VoiceType. It also updated the appearance of the Workplace Shell. OS/2 Warp 4.0 requires a boot disk to start up for setup. Boot disk is provided in the download. Boot your computer or emulator using the Installation diskette.

2025年2月7日 · ylmf os 4.0 集成雨林木风自主开发的软件中心，该软件集精品软件推荐，系统更新，软件管理等功能于一身，帮助用户从根本上解决 Linux 系统下软件难找难安装的问题。