Opera lanzo su nueva edicion “SwordFish”

New and improved features
Code name
Opera 11.50 beta uses "Swordfish" as its code name.
Opera Presto 2.8 rendering engine
Opera 11.50 beta uses the latest version of the Opera Presto 2.8 rendering engine.
Opera Next
Opera Next is a stand-alone installation of the Opera desktop browser intended for testing the development of new features, technologies, and improvements.
It is automatically updated to include the latest changes as they become available.
Important note: Pre-release builds may be unstable and include known issues, such as crashes or data loss situations.
See: What is Opera Next?
Opera Link: Password synchronization
The most requested feature for Opera Link is password synchronization.
You can enable it when you set up link for the first time or in the Synchronization Options dialog.
Speed Dial extensions
Speed Dial extensions are like small web pages embedded in your Speed Dial powered by Opera's extension framework.
They allow developers to make live previews of web pages or other nice decorations for your Speed Dial.
The Add Speed Dial dialog now promotes Speed Dial extensions, and the way Speed Dial extensions are shown in the extensions manager has been improved.
You can also install the same Speed Dial extension more than once.
See: Opera Extensions API: Speed Dial guide
See: Creating Opera Speed Dial Extensions
See: Extensions - in Speed Dial!
Web specifications support
Opera 11.50 beta incorporates web specifications added up to and including Opera Presto 2.8 core-integration-point 158. For further reference please see:
Web specifications support in Opera
CSS
Improved deep nesting of the quotes property.
See: W3C CSS 2.1 Section 12.3: Quotation marks
DOM event handling
Updated the list of DOM events visible on window, document and element objects.
Events supported by Opera and part of the Window interface of the HTML standard are now exposed on the window object.
Events supported by Opera and part of the HTMLDocument interface are now exposed on the HTML document object.
onstorage has been removed.
Events supported by Opera and part of the HTMLElement interface are exposed on all elements, unless the events are form specific, in which case they remain visible only on form elements.
See: HTML5 elements, attributes, and APIs support in Opera Presto 2.8
See: W3C HTML5 Section 3.1.1: Documents in the DOM
See: W3C HTML5 Section 3.2.2: Elements in the DOM
See: W3C HTML5 Section 5.2: The Window object
HTML5 datalist element
Added support for datalist.
See: HTML5 elements, attributes, and APIs support in Opera Presto 2.8
See: W3C HTML5 Section 4.10.10: The datalist element
HTML5 Session history and navigation
Added support for the history interface.
See: HTML5 Session History and Navigation support in Opera Presto 2.8
See: W3C HTML5 Section 5.4: Session history and navigation
HTML5 and SVG classList attribute
Enabled the classList attribute for HTML and SVG elements.
See: HTML5 elements, attributes, and APIs support in Opera Presto 2.8
See: W3C HTML5 Section 3.2.3.6: The class attribute
HTML5 <time> element
Implemented the HTML5 <time> element.
See: W3C HTML5 Section 4.6.10: The time element.
See: W3C HTML5 Section 10.4.17: The time element
Opera Widgets specification
Default widget size has been overridden from 100x100 to 300x300.
See: Opera Widgets specification
Selectors API
Implemented Element.oMatchesSelector.
Prefixed implementation of the Element interface .matchesSelector method with "o".
Note: The refNodes parameter is not supported.
See: W3C Selectors API Level 2.