This document summarizes changes to the Safari Web browser since version 4.0. Changes are presented cumulatively in reverse chronological order, from later to earlier versions of the software. The document will be updated continuously over time to reflect new software releases.

These are the main websites where you can obtain Safari development support:

Use or to communicate issues with Apple. Include detailed information about the issue, including the system and developer tools version information, and any relevant crash logs or console messages.


To make best use of this document, you should already be familiar with Safari web development, HTML, CSS, and JavaScript.