Mac OS X 10.5.4

Mac OS X 10.5.5 is an update for Mac OS X 10.5 (Leopard) that was released by Apple on June 30, 2008. It has the build number 9E17.

Features
10.6.4 includes the following changes:

General

 * Includes recent Apple security updates.
 * Resolves an issue with saving and reopening Adobe Creative Suite 3 ﬁles on a remote server.
 * Includes additional RAW image support for several cameras.
 * Addresses an issue that may result in a partially installed X11 application.
 * Improves L2TP VPN client reliability.

AirPort

 * Addresses AirPort reliability issues with 5GHz networks.
 * Addresses AirPort issues that may result in slower performance in Logic Studio or MainStage.

iCal

 * Improves overall iCal reliability for meeting requests, cancellation notices, delegation, and syncing with iPhone.
 * Resolves an issue that prevents deleting an iCal event without notifying the creator.
 * Addresses an issue in which events in all calendars affect availability.  A checkbox now enables information-only calendars to be transparent from free/busy lookups.
 * Resolves a UI issue preventing delegated calendars from showing up as a separate window.
 * Addresses an issue with copying and pasting attendees from one event to another.
 * Resolves an issue in which iCal may not delete events after a speciﬁed time interval, even when set to do so in iCal preferences.
 * Addresses an issue in which To Dos cannot be marked private.

Safari

 * Addresses a potential performance issue when loading secure web pages.
 * Resolves issues that may be encountered when accessing secure web pages with client certificates that reside on a smart card.

Spaces and Exposé

 * Addresses an issue in which switching from a space with a Finder window keeps the Finder as the active application instead of the application residing in the destination space.
 * Fixes an issue in which dragging an application from the list of application assignments in Spaces System Preferences does not assign the application to the desired space.
 * Resolves an Exposé issue that may result in only a subset of windows being shown.