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:
developer.apple.com: The best source of official up-to-date technical documentation on iOS, macOS, and Safari development
developer.apple.com/safari: The Safari Dev Center homepage on the Apple Developer website.
https://forums.developer.apple.com/community/safari-and-web: The Apple Developer Forum areas specifically for Safari development.
www.webkit.org: The main homepage of the WebKit Open Source Project.
Use bugreport.apple.com or bugs.webkit.org 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.