The latest snapshot for Opera 12.10 introduces the possibility to enable SPDY for Turbo. The option is turned off by default but you can enable it yourself.
You can find it under the Preferences Editor of the browser (opera:config), in the proxy settings (Use SPDY for Turbo).
Repairs are also available in the list of changes and address plenty of issues, crash bugs, too.
The fresh revision should no longer crash when opening Dragonfly with hardware acceleration enabled or when closing a tab with an active tooltip.
Furthermore, the developer addressed the problems that caused the web browser to crash when initiating the deletion of private data, after clicking Help or on when closing the Delete Private Data dialog that is in progress.
Download Opera for Windows (32bit)
Download Opera for Mac (32bit)
Download Opera for Mac (64bit)