Reference Library
This page lists new and recently changed documents, including Articles, Guides, Reference, Release Notes, Sample Code, Technical Notes, and Technical Q&As. Most documents have a revision history, which details additions and changes to that document since the previous version. Look for "Revision History" at the bottom of the document or in the document'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 Reference Library documents are 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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2008-03-11 File System Events Programming Guide (HTML) (PDF)
Fixed typos.
 Minor Change Guides File Management
2008-07-11 File System Overview (HTML) (PDF)
Revised information about initial file permissions.
 Minor Change Guides File Management
2008-04-08 FSEvents Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference File Management
2008-02-25 FSMegaInfo (HTML) (DMG) (ZIP)
Prints information about various file system objects; helpful when debugging VFS plug-ins.
 First Version Sample Code File Management
2008-04-08 Darwin Notification API Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference General
2008-04-08 Disk Arbitration Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference General
2008-04-08 I/O Kit Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference General
2008-04-08 Kernel Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference General
2008-04-29 Mac OS X Man Pages (HTML)
Updated Java manual pages.
 Content Update Reference General
2008-04-08 Bluetooth Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Hardware & Drivers
2008-04-08 Bluetooth User Interface Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Hardware & Drivers
2008-08-18 Building Universal I/O Kit Drivers (HTML)
Updated for Xcode 3.x.
 Minor Change Technical Notes Hardware & Drivers
2008-04-08 Force Feedback Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Hardware & Drivers
2008-04-08 I/O Kit Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Hardware & Drivers
2008-09-18 IODeviceTree and the I/O Registry (HTML) (日本語 HTML)
Modernized and made minor editorial changes.
 Minor Change Technical Q&As Hardware & Drivers
2008-04-08 Kernel Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Hardware & Drivers
2008-09-16 Mac OS X and root access (HTML)
Modernized and made minor editorial changes.
 Minor Change Technical Q&As Hardware & Drivers
2008-03-11 Network Device Driver Programming Guide (HTML) (PDF)
Added note about how to remove the IP protocol from an interface to permit KEXT unloading.
 Minor Change Guides Hardware & Drivers
2008-09-24 Programmatically causing restart, shutdown and/or logout (HTML) (日本語 HTML)
Updated source listing.
 Minor Change Technical Q&As Hardware & Drivers
2008-08-08 Registering and unregistering for sleep and wake notifications (HTML)
Added information about forced/idle sleep, how to receive sleep/wake notification in Cocoa, and expanded IOKit sample to include wake messages and IOPMAssert.
Content Update Technical Q&As Hardware & Drivers
2008-09-24 Retain Counts of io_object_t Objects in IOKit.framework (HTML) (日本語 HTML)
Minor editorial changes.
 Minor Change Technical Q&As Hardware & Drivers
2008-08-27 SimpleUserClient (HTML) (DMG) (ZIP)
Now demonstrates 64-bit user client APIs, how to build a sub-kext to support older OS versions, and how to build the test tool 4-way universal.
Content Update Sample Code Hardware & Drivers
2008-08-14 Understanding and Debugging Kernel Panics (HTML) (日本語 HTML)
Added content for Intel-based Macs and updated for Leopard.
 Content Update Technical Notes Hardware & Drivers
2008-04-08 64-Bit Transition Guide (HTML) (PDF)
Fixed minor typographical errors and links.
 Minor Change Guides Interprocess Communication
2008-06-18 BootstrapDump (HTML) (DMG) (ZIP)
Fix a benign bug that was tripping an assert.
 Minor Change Sample Code Interprocess Communication
2008-04-08 Darwin Notification API Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Interprocess Communication
2008-03-11 File System Events Programming Guide (HTML) (PDF)
Fixed typos.
 Minor Change Guides Interprocess Communication
2008-03-11 File System Events Programming Guide (HTML) (PDF)
Fixed typos.
 Minor Change Guides Kernel
2008-09-16 Mac OS X and root access (HTML)
Modernized and made minor editorial changes.
 Minor Change Technical Q&As Kernel
2008-04-08 Network Kernel Extensions Programming Guide (HTML) (PDF)
Added additional details about msleep function.
 Minor Change Guides Kernel
2008-08-27 SimpleUserClient (HTML) (DMG) (ZIP)
Now demonstrates 64-bit user client APIs, how to build a sub-kext to support older OS versions, and how to build the test tool 4-way universal.
Content Update Sample Code Kernel
2008-03-25 Supported KPIs (HTML)
First Version
 First Version Technical Q&As Kernel
2008-08-14 Understanding and Debugging Kernel Panics (HTML) (日本語 HTML)
Added content for Intel-based Macs and updated for Leopard.
 Content Update Technical Notes Kernel
2008-03-25 Bonjour Printer Subtype for HTTP (HTML)
Restructured the document to clarify possible ambiguities.
 Minor Change Technical Q&As Networking
2008-04-23 DNS Service Discovery API Reference for C (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Networking
2008-06-03 Getting a Packet Trace (HTML) (日本語 HTML)
Streamlined product descriptions and reorganized the Miscellaneous notes. Restructured entire document and added additional packages. Added additional Hub/Switch information.
 Minor Change Technical Q&As Networking
2008-04-29 Mac OS X Man Pages (HTML)
Updated Java manual pages.
 Content Update Reference Networking
2008-04-08 Network Kernel Extensions Programming Guide (HTML) (PDF)
Added additional details about msleep function.
 Minor Change Guides Networking
2008-04-08 System Configuration Framework Reference (HTML)
Reprocessed content with new toolchain.
 Minor Change Reference Networking
2008-06-09 Using Doxygen to Create Xcode Documentation Sets (HTML)
First Version Articles Open Source
2008-04-08 64-Bit Transition Guide (HTML) (PDF)
Fixed minor typographical errors and links.
 Minor Change Guides Performance
2008-09-16 Disabling Processor Cores on a Multi-Core System (HTML) (日本語 HTML)
Added CHUD Processor preference pane. Removed obsolete content. Made editorial changes.
 Content Update Technical Q&As Performance
2008-03-11 File System Events Programming Guide (HTML) (PDF)
Fixed typos.
 Minor Change Guides Performance
2008-04-08 64-Bit Transition Guide (HTML) (PDF)
Fixed minor typographical errors and links.
 Minor Change Guides Porting
2008-08-19 Is dlopen available on all versions of Mac OS X? (HTML) (日本語 HTML)
Fixed broken links.
 Minor Change Technical Q&As Porting
2008-04-08 Porting UNIX/Linux Applications to Mac OS X (HTML) (PDF)
Fixed minor typographical errors and omissions.
 Minor Change Guides Porting
2008-03-25 Bonjour Printer Subtype for HTTP (HTML)
Restructured the document to clarify possible ambiguities.
 Minor Change Technical Q&As Printing
2008-06-18 BootstrapDump (HTML) (DMG) (ZIP)
Fix a benign bug that was tripping an assert.
 Minor Change Sample Code Process Management
2008-02-20 Customizing Process Stack Size (HTML)
Updated NSThread section for Leopard.
 Minor Change Technical Q&As Process Management
2008-04-14 Determining console user login status (HTML)
A complete rewrite to account for fast user switching, and to simplify the code.
 Minor Change Technical Q&As Process Management
2008-09-10 Observing Process Lifetimes Without Polling (HTML)
A major rewrite to eliminate use of deprecated APIs and to update the technote to reference the latest techniques.
 Minor Change Technical Notes Process Management
2008-09-16 Running At Login (HTML)
First Version
 First Version Technical Notes Process Management
2008-03-19 UTXplorer (HTML) (DMG) (ZIP)
Uses the <utmpx.h> API to display current login sessions and login history.
 First Version Sample Code Process Management
2008-02-20 Customizing Process Stack Size (HTML)
Updated NSThread section for Leopard.
 Minor Change Technical Q&As Resource Management
2008-08-08 Registering and unregistering for sleep and wake notifications (HTML)
Added information about forced/idle sleep, how to receive sleep/wake notification in Cocoa, and expanded IOKit sample to include wake messages and IOPMAssert.
Content Update Technical Q&As Resource Management
2008-08-19 Is dlopen available on all versions of Mac OS X? (HTML) (日本語 HTML)
Fixed broken links.
 Minor Change Technical Q&As Runtime Architecture
2008-03-17 CryptNoMore (HTML) (DMG) (ZIP)
Corrected a bug with Open Directory-based authentication that was uncovered by Mac OS X 10.5. Also, Open Directory authentication now works correctly when built 64-bit.
 Content Update Sample Code Security
2008-09-16 Mac OS X and root access (HTML)
Modernized and made minor editorial changes.
 Minor Change Technical Q&As Security
2008-08-06 Mac OS X Code Signing In Depth (HTML)
First Version
 First Version Technical Notes Security
2008-02-08 Security Overview (HTML) (PDF)
Added descriptions of new features for Mac OS X v10.5.
 Minor Change Guides Security
2008-03-11 Suppressing the "unexpectedly quit" alert (HTML)
Updated content for Mac OS X 10.4 and 10.5. Fixed a typographical error. "~Library/Preferences/com.apple.CrashReporter.plist" should be "~/Library/Preferences/com.apple.CrashReporter.plist."
 Minor Change Technical Q&As Security
2008-04-08 HeaderDoc User Guide (HTML) (PDF)
Updated for Mac OS X v10.5.
Content Update Guides Tools
2008-08-19 Is dlopen available on all versions of Mac OS X? (HTML) (日本語 HTML)
Fixed broken links.
 Minor Change Technical Q&As Tools
2008-04-29 Mac OS X Man Pages (HTML)
Updated Java manual pages.
 Content Update Reference Tools
2008-06-19 Netwide Assembler Guide (HTML)
Content Update Reference Tools
2008-04-08 Porting UNIX/Linux Applications to Mac OS X (HTML) (PDF)
Fixed minor typographical errors and omissions.
 Minor Change Guides Tools