AppleInsider Staff
Continuing its two-week release cycle, Apple on Monday seeded the third developer preview of its next-gen Mac operating system, OS X 10.9 Mavericks, with minor under-the-hood changes.
According to people familiar with the latest version of Mavericks, the new build shows no major changes, likely meaning only minor bug fixes and performance tweaks were made in the two weeks since the second developer preview was seeded in June. Apple has been on a two-week release cycle for both Mavericks and iOS 7 betas, the latter being seeded earlier on Monday.
The accompanying release notes suggest changes have been made to how Mavericks handles the forthcoming iCloud Keychain feature, as the seed is not backward compatible with iOS 7 Seed 2 or Mavericks Developer Seed 2. As such, users will need to re-enable iCloud Keychain from the iCloud preferences pane after upgrading to Developer Preview 3.
Other known issues include graphics problems when resizing or switching from standard to satellite view in Maps, file handling in Aperture and Photoshop, and various small bugs. Finally, the notes point out that Fusion Drive volumes created in Developer Preview 3 are incompatible with OS X 10.8.4 or earlier.
When Mavericks launches this fall, it will bring a number of improvements and feature additions to the current OS X 10.8 Mountain Lion, including Finder tabs, Maps, App Nap and Compressed Memory, among others.
Developers can download the the third Mavericks preview via the Mac App Store.
Charles Martin
Malcolm Owen
William Gallagher
Christine McKee
Wesley Hilliard
Andrew Orr
25 Comments
Finally, the notes point out that Fusion Drive volumes created in Developer Preview 3 are incompatible with OS X 10.8.4 or earlier.
Huh! What!!??!!
Huh! What!!??!!
I hope they get that sorted out before release without breaking anything, because I want to keep using the unofficial DIY Fusion drive I installed in my 2011 Mac Mini.
[quote name="Macky the Macky" url="/t/158399/apple-seeds-os-x-10-9-mavericks-developer-preview-3-with-minor-changes#post_2359234"]Huh! What!!??!! [/quote] New and improved!
[quote name="Macky the Macky" url="/t/158399/apple-seeds-os-x-10-9-mavericks-developer-preview-3-with-minor-changes#post_2359234"][QUOTE name="AppleInsider" url="/t/158399/apple-seeds-os-x-10-9-mavericks-developer-preview-3-with-minor-changes#post_2359198"] Finally, the notes point out that Fusion Drive volumes created in Developer Preview 3 are incompatible with OS X 10.8.4 or earlier. [/QUOTE] Huh! What!!??!! [/quote] I think they mean that you cannot access your FD volume with 10.8.4 from a different volume running DP3. Which would be strange, yes, but wouldn't be a problem if you upgrade 10.8.4 (or older version) to 10.9
[quote name="TheWB" url="/t/158399/apple-seeds-os-x-10-9-mavericks-developer-preview-3-with-minor-changes#post_2359236"] I hope they get that sorted out before release without breaking anything, because I want to keep using the unofficial DIY Fusion drive I installed in my 2011 Mac Mini. [/quote] Well, the primary reason of listing issues in release notes is normally not to point out that they are intended... Nevertheless, you should maybe not upgrade to 10.9 when it's out before hearing from others with "DIY" Fusion drives. Running a configuration that Apple does not officially support, one could not really blame them for breaking it... I even had some problems with Apple's software RAID implementations in the past - and those were "official".