OS X Mavericks Developer Preview 5 Release Lands Josh Smith08/07/2013 The OS X Mavericks release approaches as Apple rolls out Developer Preview 5 to users that are testing the new version of Apple’s OS X system. This release is essentially the OS X Mavericks beta 5 release, which puts it on par with the iOS 7 beta 5 release that landed earlier this week for the iPhone and iPad. Both IOS 7 and OS X Mavericks are on track for a release later this year.Advertisement We could see the OS X Mavericks release date arrive in line with rumored new MacBook Pro models which could come in October. OS X Mavericks Developer Preview 5 is now available as an update in the Mac App Store for users running OS X Mavericks. Read: How to Try OS X Mavericks TodayAdvertisement The OS X Mavericks Developer Preview 5 release is here.Advertisement One of the biggest additions to OS X Mavericks Developer Preview 5 is the new iBooks app for Mac. With this release users can now view their iBooks on a Mac, syncing progress between devices and even opening multiple iBooks at once on a Mac. OS X Mavericks beta 5 delivers an iBooks app for Mac. Apple suggests trying the following iBooks for Mac features; 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. OS X Mavericks beta 5 also includes a new version of iPhoto which is in place to help test iPhoto with the new operating system. Users may need to turn Photo Stream off and back on to get everything up and running after this update. There are also other enhancements to the operating system which users will likely discover as they spend more time with the system.Advertisement Apple warns that Adobe After Effects CS 6 may not function properly in this release and Aperture may crash when exporting photos in full screen. The release comes as Apple recovers form a Developer Center outage that took software downloads offline for a little over a week. Apple released the Developer Preview 4 during the outage, so it does not appear to have slowed down the release schedule. OS X Mavericks is slated for a release later this year and will be compatible with Apple computers as far back as 2007 for some models, while others require a MacBook Air, Mac Mini or Mac Pro that is newer. Apple did not announce OS X Mavericks Update pricing when it first showed off the new operating system, but it could arrive as a $20 update in the Mac App Store.