While Opera calls the beta version 10.50, the feeling is that of a major release.
The User Interface is slick and slender and fits perfect to the current trend to reduce overhead screen space. While this is an assett for any user, it addresses especially owners of netbooks. Windows 7 and Vista users will like the neat integration into their OS, using transparency effects similar to Google's Chrome browser.
But the Opera developers take it a step further and do not reduce any functionality, instead they top up the features with the improved JavaScript engine "Carakan". The engine is not only much faster (according to heise, using the Sunspider benchmark it is 11 times faster than the current stable's v10.10 release), it finally overtakes Firefox and Chrome, needing nearly 1.5 times as long.
New is also that JavaScript alerts, HTTP notifications and password manager pop-ups are now handled as part of the regarding tab. It is possible now to keep browsing in a different tab, while another is showing a message pop-up.
But Opera's JavaScript is not the only feature receiving a whole new
engine. With the new vector graphics library "Vega", graphics,
transitions, scrolling and all other animations are made smoother, more
scalable.
A Linux version is currently not available, but the first impressions
on windows systems are good. Speed, always one of Opera's big
advantages, is now taken to a different level. Launching Opera on a
windows 7 test system took 3 seconds, while FireFox needs 6 seconds.
Opera 10.50 is a definite beta. Some features are not fully
imlemented yet, but the general experience makes hungry for more.
As always, the beta can be installed parallel to a stable release of
Opera to allow testing.
Edit 14.2.2010:
While using the 10.50, a crash could
be reproduced: While using the
web management console of a
Synology DS-209, Opera
always crashed after some minutes.