苹果于 8 月 11 日发布了 iOS/iPadOS 27 Beta 5 开发者预览版（内部版本号 24A5408d），带来多项新功能和设计更新 [1][2]。本次更新为 Safari、Siri、遥控器和预览等应用推出了重新设计的图标 [1][2]。
Siri AI 功能方面，苹果扩展了语音定制能力，用户现在可以调整所有 7 种美国语音和 4 种英国语音的语速和表现力 [1]。不过该功能仅限于 iPhone 17 Pro、iPhone 17 Pro Max 或 iPhone Air 设备使用 [1]。此外，Siri 新增对英国英语的支持 [2]。邮件应用新增了"个性化智能回复"功能开关，但默认处于关闭状态 [1]。
在其他方面，苹果调整了网络显示逻辑，连接 Wi-Fi 时不再显示蜂窝网络类型，仅在关闭 Wi-Fi 且开启蜂窝网络时才显示 5G、LTE 等标识 [2]。英国运营商 EE 的用户现在可以看到 5G+ 网络标识 [2]。Apple Wallet 的"创建通行证"功能已在美国以外地区推出 [1]。
Apple released iOS/iPadOS 27 Beta 5 on August 11, 2024, introducing significant updates across multiple applications and system features [1][2]. The developer preview build, designated version 24A5408d, delivered redesigned icons for Safari, Siri, Remote, and Preview applications, alongside expanded Siri voice customization capabilities [1][2].
The Siri AI voice personalization feature now allows users to adjust speech rate and expressiveness across seven American English voices and four British English voices [1]. This functionality is limited to iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air devices [1]. Additionally, Siri gained support for British English in this release [2]. The Mail application introduced a new personalized smart reply feature toggle, which remains disabled by default [1].
System-wide enhancements also included network display adjustments that modify how connectivity information appears to users [2]. When connected to Wi-Fi, the cellular network type indicator no longer displays; the 5G, LTE, and similar designations now appear only when Wi-Fi is disabled and cellular connectivity is active [2]. Users of the EE carrier in the United Kingdom can now see the 5G+ network indicator [2]. Apple Wallet's "Create Pass" functionality has been rolled out to regions outside the United States [1].
