Opera heeft de finalversie van versie 9.51 uitgebracht. Opera is een gratis te gebruiken internetbrowser, die features bevat zoals tabbed browsing, een pop-up blocker en een e-mailprogramma met spamfilter. Downloads zijn in 31 verschillende talen en voor de besturingssystemen Windows, Mac OS X, Linux, Freebsd en Solaris beschikbaar. De lijst met veranderingen in versie 9.51 is enorm. Zo is er een een ingebouwde 'full text history search' en een verbeterde mailclient. Daarnaast zijn de nodige verbeteringen aangebracht in de performance, de renderengine en veiligheid. Hieronder is het complete overzicht te vinden van alle aanpassingen sinds versie 9.50:
User InterfaceMail/News
- Fine-tuned the new Opera skin.
- Improved drag/drop of tabs.
- Fixed problems with search engines when upgrading from Opera 9.2x.
- Fixed a stability issue when printing or when in print preview.
- Added an option to toggle mouse flips in opera:config (User Prefs - Enable Mouse Flips).
- Textarea inputs now clear when no-cache is set.
- Saving of images is no longer recorded in transfers.
Display and Scripting
- Feeds now show the first time when you subscribe.
- Corrected a stability issue that could occur when clicking the drop-down to switch views.
- Adjusted thread expanding in Mail when receiving new messages.
- Corrected a problem where multiple views (access points) show for the same account.
Security
- Corrected a stability issue with User JS.
- Style sheets now load when navigating in history.
- window.close() now functions after invoking a context menu and when closing Opera Dragonfly.
Miscellaneous
- Fixed an issue where [canvas] functions could reveal data from random places in memory, as reported by Philip Taylor. See our advisory.
- Fixed an issue that could be used to execute arbitrary code, as reported by Billy Rios. Details will be disclosed at a later date.
- Security status is now correctly set when navigating from HTTP to HTTPS.
- Corrected an issue related to OCSP and CRLs that would lower security.
- Note: This will take effect with the weekly update, or when checking manually for an update (Help > Check for Updates).
Windows-specific changes
- Corrected a stability issue with Yahoo! Mail.
- TinyMCE 2.1.x editor now works properly.
- Printing of chat items has been improved.
- Reconnection of the IRC client has been adjusted and improved.
- Menus on deviantart.com now work properly.
- Eliminated unwanted line breaks in rich text editors.
Mac-specific changes
- Fixed a resource leak in the transfer window that could cause visual paint problems and other related problems.
- Command line parameters must now be specified before any URLs on the command line.
UNIX-specific changes
- Improved the "Reuse current tab" feature in Opera Speed Dial.
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- An Opera package for 64-bit Linux is now available.
- Corrected an issue that would prevent pages from closing on Qt4 builds.
- Improved the saving of changes to plugin configuration.
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was al een tijd erop aan het wachten, had namelijk in 9.5 problemen met posten in GoT. in de RC's was dat al verholpen, maar toch altijd fijn om de final te hebben 
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). Zowel 9.27 als 9.5x lopen prima hier.
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