This pre-alpha build is also features a new rendering engine Presto 2.5, which contains a huge numbers of improvements. It includes support for CSS3 transitions and transforms, and more HTML5 features like persistent storage.
The other major change in Opera 10.5 is a is a new graphics library – Vega. Vega is the graphics rendering engine in Opera. It handles things like transitions and transforms in CSS, rounded corners, box shadow etc. Also small animations when opening/closing a tab, when alerts appear and when you drag tabs are all achieved through Vega. It’s currently software based but can be hardware accelerated.
Other new features
- Menu bar is removed and added to a drop-down menu from an icon. A new look with Aero Glass effect on Windows Vista/7.
- Private browsing: Open a new private window or a private tab.
- Better integration with Windows 7 features like Aero Glass, Aero Peeks and Jumplists, and a move to Cocoa on the Mac, where you get a unified toolbar, touch pad gestures and drop down menus. It also adds notification features, in particular 'Growl' notification support on the Mac.
- Some improvements to the search box and the address box.
- A new interface for opera:cache. It allows you to directly browse, preview and use the contents of the cache on a per site basis.
- Opera Dragonfly in 10.5 pre-alpha features new and improved highlighting for clicking and selecting elements to inspect on a page. To open Opera Dragonfly, go to Tools->Advanced->Developer Tools.
- New inline page search and password manager.
Download Opera 10.5 pre-alpha from the bottom of this page.