Umbrella issue tracking developing Flutter apps on iOS 14

Blockers

• flutter run ios 14 crashing on release mode #60424 flutter run ios 14 crashing on release mode
• Running debug on iOS 14 shows "would like to find and connect to devices on your local network" popup #60634 Running debug on iOS 14 shows "would like to find and connect to devices on your local network" popup
• [iOS] Some text is displaying incorrectly on iOS 14 #60013 Some text is displaying incorrectly on iOS 14
• add-to-app via CocoaPods cannot find flutter_assets on iOS 14 #63552 add-to-app via CocoaPods doesn't work on iOS 14
• Add observatory Bonjour service to built iOS Info.plist bundle #65138 Cannot connect to the observatory on a physical iOS 14 device
• XCode 12 beta "Your Xcode version may be too old for your iOS version." when running iOS 14  #64045 flutter_tools/ios-deploy can't deploy to physical iOS 14 devices
• flutter drive CI tests fail targeting iOS 14, stuck on local network permission popup #65207 flutter drive tests fail targeting iOS 14, stuck on local network permission popup
• iOS 14 release Invalid Binary related to Invalid font when adding a Widget Extension #65991 iOS 14 release Invalid Binary related to Invalid font when adding a Widget Extension
• [iOS] Crash in debug when opening from the home screen #67624 iOS 14 app crashes with a segfault in debug when opening from the home screen

JIT crash

• App crashes on launch on physical iOS 14 device in debug mode when debugger not attached, EXC_BAD_ACCESS (SIGKILL - CODESIGNING) #60657 App crashes on launch on physical iOS 14 device
• Show error message in app when ptrace is not permitted on iOS 14 instead of crashing #62518 Show error message in app when ptrace is not permitted on iOS 14 instead of crashing
• Document that debug Flutter apps cannot be manually launched on the device on iOS 14 #62531 Document that debug Flutter apps cannot be manually launched on the device on iOS 14
• Delete iOS debug app when quitting resident runner #62883 Delete the debug app from iOS 14 device when quitting resident runner
• Relaunching debug iOS 14 app from home shows white screen in dark mode #66161 Relaunching debug iOS 14 app from home shows white screen in dark mode

Other bugs

• flutter screenshot fails on iOS 14 beta 5: Could not connect to screenshotr! #64605 flutter screenshot fails on iOS 14 beta 5: Could not connect to screenshotr!
• [IOS] 5.4" inch screen support #62437 Zoomed in mode/5.4" inch screen support
• flutter attach for add-to-app modules doesn't work on iOS 14, document how to add _dartobservatory._tcp to host app #63893 flutter attach for add-to-app modules doesn't work on iOS 14, document how to add _dartobservatory._tcp to host app

Aesthetic

• Add package for SF Symbols 2 #60034 Add package for SF Symbols 2
• [iOS] New iOS 14 CupertinoActivityIndicator #60047 New iOS 14 CupertinoActivityIndicator
• Add a Sidebar widget to Cupertino for a native look on iPadOS #60762 Add a Sidebar widget to Cupertino for a native look on iPadOS
• Deprecate iOSVersionStyle.iOS13 #62521 Deprecate iOSVersionStyle.iOS13
• Rounded rectangles painted badly[ios14][web][skia] #62652 Rounded rectangles painted badly
• Unsolicited iOS14 clipboard permission prompt #60145 Unsolicited iOS14 clipboard permission prompt
• Update the Cupertino picker visuals #63694 Update picker widget style

New features

• Explore home widgets for iOS 14 #60026 Explore home widgets for iOS 14
• Support app clips on iOS 14 #60029 Support app clips on iOS 14
• Pull-Down Menus for iOS 14 #60298 Pull-Down Menus for iOS 14
• TextField should support apple pencil input by default. #61278 Pencil scribble in text fields
• Add new Cupertino calendar date picker mode #63693 New date picker widget in iOS 14
• Add new Cupertino time picker mode  #63696 New time picker widget in iOS 14

Xcode 12 support tracked separately at #60133.