The last couple of months we've been working hard on the upcoming Opera 9.5 release, codename Kestrel. Opera 9.5 will contain many cool new features, improvement of existing features, and we fixed a lot of bugs. Within a few weeks we will publish 9.5 weeklies on this blog so everyone can start playing with it.
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Platform integration
To make sure that Opera remains the best choice on your platform, we spend a lot of time making Opera feel more integrated with your platform. Mac users can expect a nice new visual look and feel. Opera for Linux will add a QT4 build, so you can easily adjust the skin to match with desktop. There will also be 64-bit Linux/FreeBSD packages made available.
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[fonte: http://my.opera.com/desktopteam/blog/kestrel-is-coming ]