Dinsdag is de eerste release candidate van versie 11.00 van de webbrowser Opera uitgebracht en woensdag de tweede. Het gelijknamige Noorse bedrijf heeft browsers voor alle belangrijke computerplatforms en voor een groot aantal mobiele platforms. De browser biedt tabs, kan worden aangestuurd met mouse gestures, heeft een ingebakken downloadmanager en biedt bescherming tegen phishing en malware. Er kan met Opera niet alleen worden gesurfd, maar ook gemaild, er is een ingebouwde bittorrentclient en er kan worden gechat via irc of met het door Opera zelf ontwikkelde sociale netwerk Unite. Versie 11.00 maakt gebruik van versie 2.7 van de rendering engine Presto, wat de snelheid en stabiliteit ten goede moet komen. Verder kan de functionaliteit verder worden uitgebreid met behulp van extensies, kunnen tabs worden gestapeld en is er een auto-update functie. Het changelog van deze release ziet er als volgt uit:
Opera 11.00 build 1149 RC1
Desktop/cross-platformTab stacking
- More detailed output for "-profilinglog": those affected by slow startup should use this to generate a new log
- Updated Speed Dial background
- Added background image to the find text toolbar, geolocation, and friends and another background image to the bookmarksbar
- Translations strings updated
- DSK-321939 (With vertical Tab Bar, stacks animate out of the Tab Bar)
- DSK-321956 (Repainting issue when stacking tabs)
- DSK-321965 (Opera freezes when UI animations are disabled and tab is moved)
- DSK-321971 (Cannot move tabs in the middle of a stack to another tab to create a second stack)
- DSK-321990 (Dragging and rearranging stacks can make tabs disappear from UI)
- DSK-321993 (Can not move rightmost tab stack to the left)
- DSK-322020 (Dragging tab into stack can produce two expander arrows)
- Fixed order of tabs dropped when you drop more than one from the window list into and stack or into normal tabs
- Fixed some crashes
Extensions
- CORE-35166 (Documentedit crash when clearing the undo/redo stack after typing in Hebrew)
- DSK-317885 (Filter icons: need to clear the alpha before painting into the bitmap)
- DSK-320674 (Quick reply messes up body's HTML source when replying to an HTML message when you have "prefer HTML formatting" set)
- DSK-321243 (Mail panel scrollbar doesn't always move when tabbing to out-of-view sections)
- DSK-321295 (Clicking on collapsed section header at bottom of panel doesn't scroll section into view)
- DSK-321296 (Clicking inside long section scrolls other sections out of view)
- DSK-321458 (Gray out 'limit filter to messages in parent' for top-level labels (and rename to 'label'))
- DSK-321556 (Grey out hide feeds when only feeds added to the panel)
- DSK-321623 ([Infobar Button Skin.hover] needs image, not color)
- DSK-321638 (Fix [Yes] in Go to Intranet toolbar)
- DSK-321945 (Content blocker toolbar should be set to 'wrap')
- DSK-322029 (Feed selector in mail view tab toolbar doesn't work with feeds only)
- DSK-322030 ('Label as' list missing in feeds-only installation)
- DSK-322048 (Problems with keyboard navigation in Mailing list panel section)
- Added mail label menu shortcut to the 9.2 Compat keyboard shortcuts
- Fix for broken context menu when using keyboard on accordion section headers
- Fixed an issue with the mailto dialog missing favicons
Windows
- Fix for .oex file icon on Windows
- Fixed an issue with the translation of "Extensions" in the O-Menu
- Numerous small tweaks and fixes to the Windows installer
- Possible fix for recreation of 'desktop.ini': we are interested to hear if this works for affected users
Opera 11.00 build 1152 RC2
Desktop/cross-platformTab stacking
- DSK-321517 (Some action labels do not fit in visual mouse gesture UI)
- DSK-321946 (Tab dragging bug)
- DSK-321974 (Trying to merge stacks can cause them to split)
- DSK-322060 (scrambled address field)
- DSK-322105 (some reproducible tab stacking issues)
- DSK-322179 (Crash when dragging and dropping an item to the last position on the tab bar)
- Correction of drop position for drag & drop of links
- Fixed dragging collapsed group out of expanded group at the left end and right end of tab bar
- Set the top button of collapsed group dropped into expanded group as the active for the group
- Fixed setting of the active and hidden tabs in groups when the mouse up occurs
Core
- Further fix to DSK-317885 (filter icons: need to clear the alpha before painting into the bitmap)
- DSK-321902 (After removing an item from a treeview, key down to next section doesn't work)
- DSK-315824 (Contacts panel not counted as mail related panel)
- Further fix to CORE-31929 (Crash on exit)
- More crash fixes
De volgende downloads zijn beschikbaar: 
Opera 11.00 build 1152 RC2 voor WindowsOpera 11.00 build 1152 RC2 voor Mac OS XOpera 11.00 build 1152 RC2 voor Linux/FreeBSD
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