Opera 10.5 final version is out and guess what? They claim to be the
fastest browser for Windows in the world! Well, each time a major web-browser version is released, they claim to be the fastest amongst all! Isn't it?! But Opera claims that their developers have introduced a new JavaScript engine called
Carakan and a new graphics library called
Vega in Opera 10.5 which makes it really fast.
The new release of Opera browser includes a sleek and redefined new design and an improved private browsing. The improvement in private browsing is that you can open it in a separate tab or in a new window. The new Opera 10.5 also integrates well with the Aero Glass feature in
Windows 7 and Windows Vista.

Opera 10.5 also boasts of full CSS 2.1 support and improved CSS 3 and HTML5 support. HTML5 videos are now supported in Opera. Personally, I feel Opera 10.5 is definitely the best browser with respect to the design and performance released by Opera till date. Whether it is the fastest or the best amongst all browsers, is something left for personal choice.
Opera 10.5 Final - Key Features