Opera 140.0.6066.0 developer update
Hello!
We’ve rolled out a new Opera Developer update with improved tab tooltips, refreshed wallpapers, interface refinements, and stability fixes across the browser.
Key highlights
- Added a clearer related-sites experience in tab tooltips: the tooltip displays up to five lines while additional sites remain accessible by scrolling.
- Added new default wallpapers and refreshed the wallpaper thumbnails used in onboarding and the Classic theme.
- Refreshed the Windows and macOS installers with new hero images, updated secondary buttons, and improved spacing and error-screen layouts.
- Improved Vertical Tabs behavior, including tab island sizing, close-button positioning, sidebar interactions, window resizing, and preserving the scroll position when opening external links.
- Fixed a crash when moving a tab island containing Split Screen tabs to another workspace.
- Added support on Linux for dragging URLs from the bookmarks bar.
- Fixed emoji selection through the “+” button and restored suggestion dropdowns after displaying tab tooltips.
- Fixed removing permissions from sites on the allowed list in Settings.
- Improved Browser Connector installation and onboarding from rich hints.
- Fixed several crashes affecting authentication, browser-window activation, component management, extension dialogs, and tab handling.
For a full list of changes check out our changelog.
Happy browsing!
Installation links:
- Opera developer for Windows (Using the Opera developer for Windows installer means you have accepted the Opera for Computers EULA)
- Opera developer for Windows (Portable version)
- Opera developer for macOS
- Opera developer for Linux – deb packages
- Opera developer for Linux – RPM packages




