This document provides developer-level information about features that were introduced in different versions of Mac OS X.
This document is not intended as a complete list of features or changes for each new version of Mac OS X. Instead, it focuses on those features or changes that affect the development of third-party software, providing overviews of each along with insight as to how and when you might use them to create your own software. Wherever possible, this document also provides links to other Apple conceptual and reference documentation for that feature or change.
For each shipping release, this document also provides links to “delta” reference documents, which list the new and changed programming interfaces that were introduced with that release.
This document includes the following articles:
“Mac OS X v10.6” describes the changes that were introduced in Mac OS X v10.6.
“Mac OS X v10.5” describes the features that were introduced in Mac OS X v10.5.
“Mac OS X v10.4” describes the features that were introduced in Mac OS X v10.4.
Last updated: 2009-11-13