Leopard Guides
This page lists new and recently changed documentation. Most documentation has a revision history, which details additions and changes since the previous version. Look for "Revision History" in the documentation's table of contents.

Items are listed in reverse chronological order by publication date. To see the list sorted by the type of revision, click Sort by Revision Type. Items published for the first time (First Version) will be at the top of the list, followed by items with new or changed content (Content Update), followed by items with small fixes, such as typos and format errors, but no significant content changes (Minor Change).

New and updated developer documentation is announced in the bi-weekly Apple Developer Connection News, available as an option to ADC members. See the Membership Overview page for details on joining.
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2009-03-04 Audio Device Driver Programming Guide (HTML) (PDF)
Corrected errors in Listing 3-12 and 3-13.
Minor Change Hardware & Drivers
2009-01-06 Authorization Services Programming Guide (HTML) (PDF)
Corrected minor errors. Changed the title from "Performing Privileged Operations With Authorization Services."
Minor Change Security
2008-11-19 Code Signing Guide (HTML) (PDF)
Added a chapter describing the code signing requirement language.
Content Update Security
2009-02-26 Dynamic Library Programming Topics (HTML) (PDF)
Added information about run-path dependent libraries.
Minor Change Runtime Architecture
2009-05-06 HID Class Device Interface Guide (HTML) (PDF)
Made minor corrections to code samples.
Minor Change Hardware & Drivers
2009-02-04 Mac OS X ABI Function Call Guide (HTML) (PDF)
Made content corrections.
Minor Change Intel-Based Macs
2009-03-02 Network Kernel Extensions Programming Guide (HTML) (PDF)
Fixed an error in a code listing related to the return value of the socket function.
Minor Change Kernel, Networking
2009-05-06 Porting Drivers to Mac OS X (HTML) (PDF)
Corrected bugs in code samples.
Minor Change General, Porting
2008-10-15 Security Overview (HTML) (PDF)
Added a link to the iPhone OS Technology Overview.
Content Update Security
2008-11-19 System Startup Programming Topics (HTML) (PDF)
Miscellaneous edits.
Minor Change Runtime Architecture
2009-02-04 Universal Binary Programming Guidelines, Second Edition (HTML) (PDF)
Made minor content additions.
Minor Change Intel-Based Macs