Safari 5 was released during Apple's Worldwide Developer Conference ( WWDC ) and boasts some really nice developer tools, fantastic support for HTML 5 and CSS 3, ability to host extensions, and is really, really fast. I also love the Readability Feature which allows reading online tutorials and articles so much more enjoyable. You can get a comprehensive list of the features in Safari 5 on the Apple website.
In terms of Safari 5 Extensions, developing them couldn't be easier as they are just HTML, CSS, and Javascript. You can develop them right in Safari using the Safari 5 Developer Tools. If you want to deploy them so others can use the extensions, you will need to join the FREE Safari Developer Program and get your own certificate to sign the extension. This keeps others from maliciously hacking your extension and also proves it comes from you. In the near future Apple will have an Extensions Gallery for developers to upload their extensions and share with all Safari 5 Users.
I am really looking forward to sharing Safari Extensions with other users. For more information on developing Safari 5 Extensions, check out Apple's Safari Extensions Developer Guide. If you don't have Safari 5, download it now.
David Hayden
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