Apple has released the client and server versions of the OS X 10.5.6 update, which includes a range of bug fixes and security patches. OS X 10.5.6 shores up the performance of Airport WLAN connections and specifically addresses issues that Intel based Mac users were having while roaming in large wireless networks. The update also addresses issues with Apple’s MobileMe, and ensures that contacts, calendars and bookmarks on a Mac automatically synchronize within a minute of the change being made on PCs, devices, or online at me.com, according to the release notes.

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