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Apple released a new El Capitan build making it build 15A226f to developers. No major word on what the new build brings, but here is the run down on the notes and known issues so far with El Capitan latest build: (Again, PLEASE make sure you backup your machine(s) before pushing out this update(s))
Notes and Known Issues
Installation
Note
- After upgrading to OS X El Capitan Developer Beta, applications that write to protected/system locations may no longer function correctly.
Known Issues
- Directly upgrading from OS X Lion or earlier to OS X El Capitan Developer Beta is not recommended.
- Selecting the ‘Do It Later’ option will not install updates for standard user accounts.
Apple ID
Note
- Some Apple ID accounts will be offered the option to upgrade to using two-factor authentication. For More information about using two-factor authentication with your Apple ID see apple.com/support/two-factor-authentication.
Known Issues
- After enabling two-factor authentication during Setup Assistant users may be challenged to enter their verification code at the next prompt.
- If you have two-factor authentication enabled, you may not be able to sign into services using OS X El Capitan or iOS 9 beta 2 or earlier.
- If you enable two-factor authentication, iTunes purchases on Mac and Windows and store purchases on Apple TV will require you to append a 6-digit code to the end of your password on every purchase. The 6-digit code will automatically be sent to your iOS 9 or OS X El Capitan devices.
- When there is only a single trusted device using two-factor authentication, you will need to generate a code in the iCloud Preference Pane when requested.
- If you disable two-factor authentication and set a new password at apple.com, the password requirements are not indicated so your password may not be accepted. Please ensure your password meets the following requirements:
- Have at least one lower case character
- Have at least one capital letter
- Have at least one number
- Your password must not contain more than two consecutive identical characters
- Not be the same as the account name
- Be at least 8 characters
- Not be a common password
- You cannot manage your two-factor authentication trusted devices at apple.com. Devices can be managed in the iCloud Preference Pane.
Photos
Note
- Photos libraries are not backwards compatible. Once a library has been opened in the OS X El Capitan Developer Beta, it will no longer be openable in OS X Yosemite or earlier.
Known Issues
- Photos app may prevent system sleep. Quit Photos before putting the system to sleep.
- Addresses may not be visible in edit panel when ordering print products.
- Moments location names may not be consistent across devices after manually adding or changing location information for photos and videos.
Language
Known Issues
- Some text may not be localized to the selected system language.
- Some languages may have clipped or misaligned layout.
Other
Notes
- System file permissions are automatically protected, and updated during Software Updates. The Repair Permissions function is no longer necessary.
- OS X El Capitan is the last major release of OS X that will support the previously deprecated garbage collection runtime. Applications or features that depend upon garbage collection may not function properly or will not launch when the runtime is removed. Developers should use Automatic Reference Counting (ARC) or manual retain/release for memory management. Xcode includes tools to aid in this migration.
- OS X El Capitan is the last major release of OS X that will support the previously deprecated Java 6 runtime and tools provided by Apple. Applications or features that depend upon Java 6 may not function properly or will not launch when Java 6 is removed. Developers should move to a newer version of Java as provided by Oracle. For more info on Java from Oracle: http://www.oracle.com/technetwork/java/javase/overview/
- When negotiating a TLS/SSL connection with Diffie-Hellman key exchange, OS X El Capitan requires a 1024-bit group or larger. OS X El Capitan will not connect to a server that allows negotiation with a 512-bit or smaller group. These connections include:
- Secure Web (HTTPS)
- Enterprise Wi-Fi (802.1X)
- Secure e-mail (IMAP, POP, SMTP)
- Printing servers (IPPS)
- The nscurl tool on OS X El Capitan supports diagnosing ATS secure connections. For example, /usr/bin/nscurl –ats-diagnostics https://www.example.com will display ATS connection information for http://www.example.com. Run /usr/bin/nscurl -h for more information.
- The fetchAllChanges property on CKFetchRecordChangesOperation is deprecated, and will be removed in iOS 9, OS X El Capitan.
Known Issues
- Devices running iOS 9 Beta may not connect to iTunes on OS X El Capitan Developer Beta 4. To resolve install Xcode 7 beta or iTunes 12.2 or later.
- Xcode 6.x has known compatibility issues when run on OS X El Capitan. It is strongly encouraged that you use Xcode 7 when running on OS X El Capitan.
- AIM video chat and screen sharing in Messages are not available in this beta.
- Faces may not be detected in newly-imported photos.
- Email received before installing OS X El Capitan Beta 1 will not work with the Proactive Assistant features.
- The share menu may not create new Mail compose windows when used with some apps.
- Lifting and Stamping adjustments in Aperture may cause the app to unexpectedly exit.
- The Mail app may not be visible after reboot. To work around, quit the app and relaunch.
- iCloud Keychain will not sync passwords & credit cards with previous versions of iOS 9 and OS X El Capitan Beta.
- Some full screen metal applications may not update reliably. Running the application in a windowed mode may resolve the problem.
- Flash Player 18.0.0.203 does not work with Safari’s tab audio feature.