苹果今天发布了 iOS 8.3 升级补丁，这是 iOS 8 系统发布后第三个重大升级。iOS 8.3 第一个测试版在今年2月发送给开发者，公共测试版在今年3月发布。iOS 8.3 增加了很多新功能并改进了系统的设计。目前，用户可以通过 OTA 无线升级。此外，苹果还为 Apple TV 准备了7.2 软件升级。
iOS 8.3 对 emoji 表情进行了大幅更新，加入了全新 emoji 选择器，可以在滚动列表中管理所有的 emoji。新加入的 emoji 包括各种肤色的头像，各种情况的假日年高。此外，与 OS X 10.10.3 相同，还有新国旗、iPhone、iMac 和 Apple Watch emoji 的图标加入。
iOS 8.3 其他改变包括无线 CarPlay，用户可以不需要 Lightning 线缆将 iPhone 与汽车连接。此外，Apple Pay 正式支持中国银联网络。在 iPhone 6 Plus 方面，iOS 8.3 增强了横屏模式的键盘，新增加了加粗/倾斜/下划线等格式化文本功能。苹果还对 Passbook 进行了改进，将 Apple Pay 和 Passes 分开。Siri 开始支持新语言，并且可以通过扬声器拨打电话。在信息中，现在有选项过滤来自朋友和未知发送者的 iMessage 信息。
其他小改变包括空格按钮的UI，空格按钮已经被加长防止输入空格时误输入句号。最后，iOS 8.3 允许用户进行设置，可以在下载免费应用时免输入密码。iOS 8.3 还包含了大量的错误修复，包括 WiFi、蓝牙、信息方面的功能改进等。下面是详细更新说明。
Improved performance for:
- App launch
- App responsiveness
- Messages
- Wi-Fi
- Control Center
- Safari tabs
- 3rd-party keyboards
- Keyboard shortcuts
- Simplified Chinese keyboard
Wi-Fi and Bluetooth fixes
- Fixes an issue where you could be continuously prompted for login credentials
- Addresses an issue where some devices disconnect intermittently from Wi-Fi networks
- Fixes an issue where hands-free phone calls could become disconnected
- Fixes an issue where audio playback could stop working with some bluetooth speakers
Orientation and rotation fixes
- Addresses an issue that sometimes prevented rotating back to portrait after having rotated to landscape
- Improves performance and stability issues that occurred when rotating the device between portrait and landscape
- Fixes an issue where device orientation appeared upside down after pulling the iPhone 6 Plus from your pocket
- Resolves an issue that sometimes prevented apps from rotating to correct orientation after switching apps in multitasking
Messages fixes
- Addresses issues that caused group messages to sometimes split
- Fixes an issue that sometimes removed the ability to forward or delete individual messages
- Resolves an issue that sometimes prevented a preview from appearing when taking a photo in Messages
- Adds the ability to report junk messages directly from the Messages app
- Adds the ability to filter out iMessages that are not sent by your contacts
Family Sharing fixes
- Fixes a bug where certain apps would not launch or update on family members' devices
- Fixes a bug that prevented family members from downloading certain free apps
- Increased reliability for Ask to Buy notifications
CarPlay fixes
- Fixes an issue where Maps could come up as a black screen
- Fixes an issue where the UI could be incorrectly rotated
- Fixes an issue where the keyboard could appear on the CarPlay screen when it shouldn't
Enterprise fixes
- Improves reliability of installing and updating enterprise apps
- Corrects the time zone of Calendar events created in IBM Notes
- Fixes a problem that could cause web clip icons to become generic after restarting
- Improves reliability of saving the password for a web proxy
- Exchange out-of-office message can now be edited separately for external replies
- Improves recovery of Exchange accounts from temporary connection problems
- Improves compatibility of VPN and web proxy solutions
- Allows use of physical keyboards to log into Safari web sheets, such as for joining a public Wi-Fi network
- Fixes an issue that caused Exchange meetings with long notes to be truncated
Accessibility fixes
- Fixes an issue where using the back button in Safari causes VoiceOver gestures to not respond
- Fixes an issue where VoiceOver focus becomes unreliable in draft Mail messages
- Fixes an issue where Braille Screen Input cannot be used to type text in forms on webpages
- Fixes an issue where toggling Quick Nav on a Braille Display announces that Quick Nav is off
- Fixes an issue keeping app icons from being moveable on home screen when VoiceOver is enabled
- Fixes an issue in Speak Screen where speech will not start again after pausing
Other improvements and bug fixes
- Introduces a redesigned Emoji keyboard with over 300 new characters
- iCloud Photo Library has been optimized to work with the new Photos app on OS X 10.10.3 and is now out of beta
- Improves the pronunciation of street names during turn-by-turn navigation in Maps
- Includes support for Baum VarioUltra 20 and VarioUltra 40 braille displays
- Improves the display of Spotlight results when Reduce Transparency is turned on
- Adds Italic and Underline format options for iPhone 6 Plus landscape keyboard
- Adds the ability to remove shipping and billing addresses used with Apple Pay
- Additional language and country support for Siri: English (India, New Zealand), Danish (Denmark), Dutch (Netherlands), Portuguese (Brazil), Russian (Russia), Swedish (Sweden), Thai (Thailand), Turkish (Turkey)
- Additional dictation languages: Arabic (Saudi Arabia, United Arab Emirates) and Hebrew (Israel)
- Improves stability for Phone, Mail, Bluetooth connectivity, Photos, Safari tabs, Settings, Weather and Genius Playlists in Music
- Addresses an issue where Slide to Unlock could fail to work on certain devices
- Addresses an issue that sometimes prevented swiping to answer a phone call on the Lock screen
- Addresses an issue that prevented opening links in Safari PDFs
- Fixes an issue where selecting Clear History and Website Data in Safari Settings did not clear all data
- Fixes an issue that prevented autocorrecting "FYI"
- Addresses an issue where contextual predictions did not appear in Quick Reply
- Fixes an issue where Maps did not enter night mode from hybrid mode
- Resolves an issue that prevented initiating FaceTime calls from a browser or 3rd-party app using FaceTime URLs
- Fixes an issue that sometimes prevented photos from properly exporting to Digital Camera Image folders on Windows
- Fixes an issue that sometimes prevented an iPad backup from completing with iTunes
- Fixes an issue that could cause Podcast downloads to stall when switching from Wi-Fi to cellular networks
- Fixes an issue where remaining time on timer would sometimes incorrectly display as 00:00 on Lock screen
- Fixes an issue that sometimes prevented adjusting call volume
- Fixes an issue that caused the status bar to sometimes appear when it shouldn't
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