Today, Opera Software pushed a new update for the Developer channel of their web browser. Although it is a small increment in the build number (17.0.1246.0), the new version brings to the table plenty of improvements and bug fixes.
First off, the developer announced the update to Chromium 1599.14 and that a number of language (UI, dictionaries and “accept language” headers) and font settings have been implemented.
Plenty of improvements and fixes target the Quick Access Bar. Among them is support for opening the items in Quick Access Bar folder using the middle click button, eliminating a crash bug that occurred when adding a site to the expander list before loading its icon.
Also, starting this build, the Ctrl+Shift+Delete key should bring up the dialog for clearing browsing data. The shortcut is not currently implemented in the stable release of the browser. You can check the full list of changes on this page.