Apple has started seeding Mac OS X 10.5.1 build 9B13 to developers for testing. The latest seed includes fixes to Mail Sync, Spotlight Index, Disk Management, Text Drawing, iCal and CalDAV syncing, Keychain login, Read-Only Issue with SMB, AirPort 802.1X, Application Firewall, To-Do Notes, and Smart Mailboxes.
The seed is only available to ADC Developers at this time.
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