1485 Opera has released version 10.52 of their browser for the Mac.

Enhanced Mac user interface

Along with a unified toolbar, new Opera 10.52 now uses the Cocoa and Core Text frameworks for improved performance and a native Mac OS look and feel.

Multi-Touch trackpad gestures

On MacBooks with the Multi-Touch trackpad, you can pinch to zoom in and out, swipe two fingers to scroll, and swipe three fingers left and right to navigate backward and forward in browser history.

Growl notification support

Growl users can now get all of Opera's notifications from downloads, Opera Unite, Opera Mail and more.

Opera 10.52 is a recommended security and stability upgrade. Opera highly recommends all users to upgrade to this version to take advantage of these improvements.

New features:

• Better integration with Mac native systems


• Cocoa Framework


• "Growl" notification


• "Growl" license included in opera:about


• Opera Carakan JavaScript engine


• Cross-platform bytecode interpreter for a new register-based instruction set


• Internal object model with automatic classification and inline property caching


• Machine code generation (JIT compiler)


• Divided garbage collection heap: automatically traverses the memory of active heaps


• Caching of compiled programs


• Reduced memory usage


• Further Carakan information (http://my.opera.com/core/blog/2009/12/22/carakan-revisited)


• Opera Presto 2.5 rendering engine


• The Opera Presto 2.5 rendering engine includes the following additions and improvements.

CSS

• CSS 2.1 visibility: collapse


• CSS3 border-radius property (rounded corners)


• CSS3 Backgrounds and Borders


• CSS3 2D Transforms


• CSS3 Transitions

HTML

• HTML 5


• HTML 5 element (child of the HTML 5