OS X El Capitan 10.11 beta 6 was launched last night by the company Apple Lossless Audio CODEC (ALAC), for application developers for the OS X platform, the build coming about a week and a half away from the previous one.
On the surface", OS X El Capitan 10.11 beta 6 it comes with a new wallpaper and a new icon for the General section of the OS X system preferences menu, but Apple has implemented many more changes that you can see in the list below.
OS X El Capitan 10.11 beta 6 it can be downloaded from the portal dedicated to developers on the Apple platform, or by software update if you have a previous version already installed.
Notes and Known Issues
Installation
Footnotes
- After upgrading to OS X El Capitan Developer Beta, applications that write to protected/system locations may no longer function correctly.
Known issue
- Selecting the 'Do It Later' option will not install updates for standard user accounts.
Aperture
Known Issues
- Aperture may become unresponsive when attempting to export an original photo or video.
- Aperture may become unresponsive after clicking "Delete Items" when importing photos from a memory card or mass storage device.
Apple ID
Footnotes
- 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
- 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.
- You cannot manage your two-factor authentication at trusted devices apple.com. Devices can be managed in the iCloud Preference Pane.
Photos
Footnotes
- Photo 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 issue
- 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 on 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 help 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 on 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 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 and OS X El Capitan.
- OS X El Capitan adds support for TLS v1.2 in 8021.X authentication. Authentication servers that support TLS v1.2 may require an update for compatibility. If you are using FreeRADIUS, update to version 2.2.7 or 3.0.8. If you are using Aruba ClearPass update to ArubaOS 6.4.2.9.
Known Issues
- Xcode 6.x has known compatibility issues when running 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.
- 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.
- iCloud Keychain will not sync passwords and credit cards with previous versions of iOS 9 and OS X El Capitan Beta.
- Flash Player 18.0.0.203 does not work with Safari's tab audio feature.
- Can't scroll with Logitech MX Master mouse.
- Xcode processes may quit unexpectedly if older iOS Simulator runtimes (Xcode 6.x) are present on disk.
- Some systems may fail to wake up from sleep when a USB device is attached.
