Apple delivered a new build of Mac OS X 1.5 Leopard to developers this week, the objective of build 9A303 is too solve “performance related bugs” and were present in the previous build 9A283.

The following are listed as changes since build 9A283;

  • Finder hangs due to network connectivity issues have been reduced
  • As a precaution, please backup your Portable Home Directory
    before using FileSync
  • Many peformance related bugs have been fixed across the system
  • Timbuktu and Eudora no longer crash on launch
  • Safari’s bug reporting is now fixed
  • Performance improvements in the initial Time Machine backup

The following are known issues present in build 9A303;

  • Upgrades from previous seeds are not supported
  • Upgrades from previous releases are not recommended
  • Configurations with ATI Radeon or Radeon 7500 graphics cards will not
    be able to use this seed
  • Airport cards not recognized on some of the newst Core 2 Duo
    MacBook Pros
  • 32/64 bit universal apps built with 10.5 deployment target will now run
    as 32-bit on Tiger.
  • Can’t print to HP raster printers
  • Can’t login initially after enabling FileVault protection for an account.
    Wait several minutes and try again to workaround.
  • System Trash still shows deleted items until a reboot
  • Volumes in the Time Machine Pref pane are all named Volume. Quitting
    and relaunching System Preferences should workaround this.
  • Image Capture fails to recognize USB devices on PPC
  • Memory leaks when using CoreData’s NSManagedObject. This can been
    seen when sycing files.

    Syncing

  • Automatic iDisk syncing is not currently working. Please sync manually.
  • PHD syncing may generate false conflicts

    iChat

  • File transfers result in an error
  • QuickTime not working with iChat Theater

    Quick Look

  • Album art downloaded by iTunes 7 is not displayed in the music preview
  • Slideshow (aka Fullscreen from the Quick Look preview panel) doesn’t
    work for most types

Mac OS X 10.5 Leopard is due for release in Spring 2007.