Leopard contains over 300 changes and enhancements, according to Apple. Some notable features include support for writing 64-bit graphical user interface applications, an automated backup utility called Time Machine, support for Spotlight searches across multiple machines, and large revisions to most core operating system components.
Mac OS X v10.5 has been the subject of a delay. When first discussed in June 2005, Apple CEO Steve Jobs had stated that Apple intends to release Leopard at the end of 2006 or early 2007. A year later, this was amended to "Spring 2007", however on April 12, 2007, Apple issued a statement that its release would be delayed until October 2007 because of the development of the iPhone.
Mac OS X v10.5 has been the subject of a delay. When first discussed in June 2005, Apple CEO Steve Jobs had stated that Apple intends to release Leopard at the end of 2006 or early 2007. A year later, this was amended to "Spring 2007", however on April 12, 2007, Apple issued a statement that its release would be delayed until October 2007 because of the development of the iPhone.
System requirements
The pre-release documentation states the following system requirements:
A G4 (800 MHz or faster)-, G5- or Intel-based Mac
A G4 (800 MHz or faster)-, G5- or Intel-based Mac
A DVD drive
At least 512 MB RAM
7 GB of hard disk space – 12 GB if Xcode is also installed
The latest Firmware
FireWire Ports
New features
Apple has published a list of the new features and capabilities planned for Mac OS X v10.5:
End-user features
All of the following features, although posted on the Apple website, are said by Apple to be subject to change.
New Desktop: comprised of a redesigned 3-D dock with a new grouping feature called Stacks.
Time Machine, an automated backup utility which allows the user to restore files that have been deleted or replaced by another version of a file.
Front Row and Photo Booth are currently only available with the purchase of a new Mac, but will be included with Leopard. Front Row has been reworked to closely resemble the interface used by the Apple TV.
Spaces, an implementation of "virtual desktops" (individually called "spaces"). It allows multiple desktops per user, with certain applications and windows in each desktop. Users can organize certain Spaces for certain applications (i.e., one for work-related tasks and one for entertainment) and switch between them. Exposé will work inside Spaces, allowing the user to see at a glance all desktops on one screen.)
Spotlight incorporates additional search capabilities such as Boolean operators, as well as the ability to search other computers (with permissions).
Spotlight incorporates additional search capabilities such as Boolean operators, as well as the ability to search other computers (with permissions).
Redesigned Finder with features similar to those seen in iTunes 7.
Quick Look, a framework allowing documents to be viewed without opening them in an external application.
Enhancements in Universal Access: significant improvements to applications including VoiceOver, along with increased support for Braille, closed captioning and a new high‐quality text-to-speech voice.
Enhancements to Mail including the additions of RSS feeds, Stationery, Notes, and to-dos. To-dos use a system-wide service that is available to all applications.
Dashboard enhancements, including Webclip, a feature that allows users to turn a part of any web page into a live Dashboard widget, and Dashcode to help developers code widgets.
iChat enhancements, including multiple logins, animated icons, and tabbed chats, similar to features present in Pidgin, Adium and the iChat plugin Chax; iChat Theater, allowing users to incorporate images from iPhoto, presentations from Keynote, videos from QuickTime, and other Quick Look features into video chats; and Backdrops, which are similar to chroma keys, but use a real-time difference matte technique which does not require a green or blue screen. iChat will also implement desktop sharing, a feature previously available with Apple Remote Desktop.
Parental controls now include the ability to place restrictions on use of the Internet and to set parental controls from anywhere using remote setup.
iCal calendar sharing and group scheduling as well as syncing event invitations from Mail.
Boot Camp will be included. It is a software assistant which has been available as a beta release download for Mac OS X v10.4 from Apple’s website since April 5, 2006. It assists in the installation of Windows XP or Windows Vista to a separate partition (or separate internal drive) on Intel-based Macs.
New Menu Bar, which is now transparent and it is no longer rounded, which was a design feature since Mac System 1.0.
Safari 3.0.x will be included.
Version history
Mac OS X v10.5 Developer Preview (build 9A241), released August 7, 2006.
Leopard Preview Update version 1.0 (build 9A241e), released August 31, 2006
Mac OS X v10.5 Developer Preview (build 9A283), released October 12, 2006
Mac OS X v10.5 Developer Preview (build 9A303), released November 9, 2006
Mac OS X v10.5 Developer Preview (build 9A321), released December 12, 2006
Mac OS X v10.5 Developer Preview (build 9A343), released January 18, 2007
Mac OS X v10.5 Developer Preview (build 9A377a), released March 1, 2007
Mac OS X v10.5 Developer Preview (build 9A410), released April 12, 2007
Mac OS X v10.5 WWDC-beta (build 9A466), released June 11, 2007.
This was the first feature-complete version of Leopard which was released to developers attending WWDC 2007 and was later made available to Select and Premier members of the Apple Developer Connection. Mac OS X v10.5 Developer Preview (build 9A477), released July 2007.
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