Apple has posted the Mac OS X 10.5.7 Update package to its Software Update servers, weighing in at a hefty 449MB just for the incremental update from 10.5.6. Combo packages are also available both for the standard (729MB) and server (951MB) variants from Apple’s Downloads Page.

Readers are encouraged to report on any problems or changes.

From release notes for the standard Delta Update package:

What’s new in this update?

Address Book

* Improves reliability of Address Book syncing with iPhone and other devices and applications.

AirPort

* Improves the reliability of AirPort connections, including improvements when roaming in large wireless networks with an Intel-based Mac.

Client management

* Improves reliability of synchronizing files on a portable home directory.
* Fixes an issue in Mac OS X 10.5.4 and 10.5.5 in which managed users may not see printers that use the Generic PPD.

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