Developer Preview System Requirements
The OS X Mavericks Developer Preview supports the following Macs:
iMac (Mid-2007 or later)
MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)
MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)
MacBook Air (Late 2008 or later)
Mac Mini (Early 2009 or later)
Mac Pro (Early 2008 or later)
Xserve (Early 2009)
Notes and Known Issues
iBooks
OS X Mavericks Developer Preview 5 includes a preview of iBooks for Mac. When you sign in with your iTunes account you will be able to access your existing iBooks library as well as the iBooks Store.
What should I try:
Verify that your book library from iTunes 11.1 Beta moved to iBooks. Books are moved when you open iBooks for the first time.
Open and read a variety of books, including your favorite novels, picture books, and multi-touch books.
Add bookmarks, highlights, and notes, and verify that they sync to iBooks on iOS and other Macs. Note that you must have the Sync Bookmarks preference enabled.
Sync books to your iPad, iPhone, or iPod touch using iTunes.
Download books and samples from the iBooks Store in iBooks.
Download books from the iBooks Store in iTunes and verify that they appear in iBooks.
Known Issues:
If iBooks is not open and signed in to the iBooks Store when a book is purchased in iTunes, the purchased book will not download in iBooks.
Some books with interactive elements may not respond as expected on the Mac in OS X Mavericks Developer Preview 5.
Purchased books that are stored in iCloud may not show up in your book library after signing in. To resolve, run the following commands in Terminal and then relaunch iBooks.
rm -rf ~/Library/Caches/com.apple.bookstoreagent/ProductionBag
killall -9 bookstoreagent
iPhoto
OS X Mavericks Developer Preview 5 includes a pre-release version of iPhoto for the purpose of testing compatibility with Mavericks.
Opening your Photo Library with this pre-release version of iPhoto will permanently upgrade it and make it incompatible with current versions of iPhoto and Aperture.
This pre-release version of iPhoto will only upgrade libraries from iPhoto version 8.x and later.
Photos with GPS locations will be marked with pins on the map in Places. However, searching for locations using the Places map may return only partial results, or may not display any results.
The Help system is not fully enabled. Searches using the Help Center will return limited results.
Localization is not yet complete, so some text may not be displayed correctly in certain languages.
Photo Stream updates will not be registered to your Mac after installing OS X Developer Preview 5. To enable Photo Stream, you can either restart your Mac or launch iPhoto with the library connected to the Photo Stream.
Make sure all photos that appear in My Photo Stream have been imported into your iPhoto Library before using this pre-release version of iPhoto.
Attempting to use My Photo Stream or iCloud Photo Sharing with current versions of iPhoto and Aperture after using these features with this pre-release version of iPhoto may cause some streamed photos or data to be displayed incorrectly. Disabling and re-enabling Photo Stream on your Mac will resolve the issue.
Installation
It may be necessary to refresh the App Store Purchases page before Developer Preview 4 will appear in the list of purchases.
Network migration from earlier versions of OS X requires the Migration Update for Snow Leopard, Lion, or Mountain Lion, available from the Mac Dev Center.
Migration from Windows is not supported in Developer Preview 5.
iCloud and iCloud Keychain
When enabling iCloud Keychain, a blank sheet may appear. Force Quit System Preferences and retry.
Customers using iCloud Keychain with recovery may see a dialog indicating that recovery has been disabled due to a server change. This is intentional. To re-enable functionality, follow the instructions in the notification.
Third-Party Applications
Adobe After Effects CS6 will not function correctly.
Other
Screen recordings taken with Developer Preview 5 are not compatible with earlier releases of OS X.
Aperture may exit unexpectedly when exporting an image while in full screen.
Moving a full-screen Aperture window to a secondary display may prevent the app window from being visible in subsequent attempts to use full screen.
Fusion Drive volumes created with Developer Preview 4 are not compatible with OS X v10.8.4 or earlier.
If using VoiceOver, network settings may not be accessible in Recovery Mode.
Contacts may be shown multiple times in the Previous Recipients window of Mail. To resolve, run the following command in Terminal:
rm ~/Library/Containers/com.apple.corerecents.recentsd/Data/Library/Recents/*; killall -9 recentsd
AirPort Utility may exit unexpectedly.
On first reboot after installing Developer Preview 5, Wi-Fi may not automatically connect to known networks on MacBook Air (Mid-2013). Turning Wi-Fi off and then back on should resolve the issue.
Applications may stop responding to scroll events, particularly while using the accessibility zoom feature. If you experience this problem, restarting OS X should resolve the issue.
Starting in Developer Preview 4, non-admin users will be allowed to install and update software from the Mac App Store. This functionality can be disabled with a profile that sets the “restrict-store-require-admin-to-install” key to true (boolean) in the com.apple.appstore domain.
