Apple released an update to its Safari web browser Monday afternoon. We’ve been testing it for close to a full day, and we’ve found that Safari 5 performs as advertised: It’s faster, more capable and well worth the upgrade.
Safari 5 was launched rather quietly at the end of the first day of the 2010 Worldwide Developer Conference, an event that was dominated by Steve Jobs’ debut of the next iPhone and the new iOS. Safari wasn’t discussed during the morning keynote, but an announcement was made later that afternoon at a web-developer session.
You can download Safari 5 on Apple’s site. Both Mac OS X (Leopard or better) and Windows (XP and up) versions are available.
For faster page loads, Safari 5 is implementing DNS pre-fetching. Basically, the browser looks at all the links on the page you’re currently on and fetches the IP addresses of all the linked sites and page assets, preparing itself to make the jump more quickly as soon as you click on a link and begin loading another page. All of this happens in the background. Google Chrome and Firefox do this, too.
There’s added support for various pieces of the HTML5 stack in Safari 5, as well as more support for CSS 3 and other technologies powering modern web apps. According to Apple’s overview page, Safari 5 supports geolocation, sectioning elements, drag and drop, HTML5 form validation, Ruby, AJAX History, EventSource and WebSocket. We can’t tell which version of WebSocket is being supported — typing
At any rate, all of these new features are great to see, as Firefox, Chrome and Opera have supported most or all of these APIs and technologies for a while, and IE9 will support most of them. It also washes away some of the bitter aftertaste left by last week’s PR mess around HTML5 support.
There’s also support for full-screen playback of H.264 videos, and for subtitles — the screenshot at the top shows YouTube’s H.264 player. Apple is touting this as HTML5 video support, but we’d like to point out that while H.264 does make up the bulk of online video, HTML5 doesn’t require videos be H.264. All the other major browsers are backing the new, open source WebM format for video, which we’ve urged Apple to support as well.
One of the most talked-about new features is Safari Reader. A small gray “Reader” button now appears in the URL bar when you land on a news website or blog. Click it, and Safari strips out all of the clutter on the page (ads, widgets, sidebars, headers and footers) and presents just the text in a large typeface, cleanly formatted in a white window that floats, lightbox-style, over a darkened page. It also strings multipage articles together in the same window automatically. It’s intriguing to speculate about how Reader, if widely adopted, will change website-design principles by encouraging cleaner, more readable layouts. Scott Gilbertson explores this idea in detail in his in-depth look at Safari Reader here on Webmonkey.