New features
Opera Presto 2.6 rendering engine

• Opera 10.60 final contains the Opera Presto 2.6 rendering engine, which improves stability and adds support for the following new Opera features.

Geolocation services

• User-enabled geolocation services are provided through Google Location Services (GLS).
• IP address and WiFi recognition are implemented.
• IP address recognition works with GLS by recognizing your IP address and telling you the cordinates based on it.
• WiFi recognition works with GLS by gathering and then sending a list of all nearby wireless networks including MAC (Media Access Control) address, SSID (Service set identifier) name, and signal strength, which returns your coordinates.
• An address bar map pin icon indicates a Web page is accessing the Geolocation API.
• Opera geolocation services support the W3C Geolocation API Specification (http://www.w3.org/TR/2008/WD-geolocation-API-20081222/).
• A user decides to share or not share their device location with a Web site based on trust; see section 4.2 (http://dev.w3.org/geo/api/spec-source.html#privacy_for_recipients) of the W3C Geolocation specification.
• Further information is available at the Opera Desktop Team blog: "The return of Geolocation" (http://my.opera.com/desktopteam/blog/2010/02/05/skin-fixes-unite-and-then-some).
• See this Opera demo (http://html5demos.com/geo).

Offline Web Applications

• Support is added for Offline Web Applications (http://dev.w3.org/html5/spec/offline.html#offline) implementing the user interface for caching.
• This allows documents to communicate with each other regardless of their source domain, and is designed in a way which does not enable cross-site scripting attacks.
• See this Opera demo (http://html5demos.com/offlineapp).

Web Workers

• Web Workers (http://www.w3.org/TR/workers/) is an API for running scripts in the background independently of any user interface scripts. This allows for long-running scripts that are not interrupted by scripts that respond to clicks or other user interactions, and allows long tasks to be executed without yielding to keep the page responsive.
• See this Opera demo (http://html5demos.com/worker).

WebM

• The WebM format consists of the VP8 video and Vorbis audio codecs wrapped inside a .webm container. It is based on the Matroska media container format, and offers high-quality video with fast seeking.
• WebM works together with the HTML5
• See these Opera articles:
  • Welcome, WebM
  • Opera supports the WebM video format (http://dev.opera.com/articles/view/opera-supports-webm-video/)

Changes since Opera 10.60 beta 1
User interface
Improved

• The design of the "Fraud Warning" dialog
• Allowing file choosers to be editable in the native UI
• Adding support for enabling/disabling nettype, leaving it enabled by default

Fixed

• Premature shutdown when using the Mozilla Web Workers demo
• An Application Cache issue when enabling "Work Offline"
• Advanced menu in download tab not appearing for files downloaded to a non-ASCII folder
• End key putting the cursor at beginning of next line instead of end of the current line
• Opera reloading images when going back with History Navigation Mode 3
• Gmail checkboxes looking odd
• Block level elements not creating new lines in pasted text
• Premature shutdown using spatial navigation when two scrollable containers are positioned near each other
• Cache-related premature shutdown when reloading pages
• Incorrect font being used for CJK contents within a page of other language
• File handling when dealing with zip archives
• Search suggestions fixes:
  • Search suggestions not working in the address bar when using search keywords
  • Default Speed Dial search not being present in many locals
  • Search drop-down getting mixed up when deleting a previous search
  • Clicking on search suggestions in the Go To dialog dismissing the dialog
• Start bar looking unstyled and text labels not being visible with Windows Native skin
• Premature shutdown on exit after using the download context menu
• HTML5 video and gif animations stop playing when context menu is open
• Not being able to type in file input fields in the user interface
• Text being cut off in the browser identification dropdown in Polish version
• QuAVlive Webm Adaptive HTTP Streaming Demo prematurely shutting down Opera
• Premature shutdown when trying to use Opera Voice
• Opera Unite Messenger application not loading

Display and scripting
Fixed

• Serif fonts being used as default in form elements (input, text fields, and buttons)
• Documents (where documentedit has been enabled) stay in memory along with every later document in the tab
• No load event occurring for not-yet-visible images (hp.com slideshow: Main content on hp.com not displaying when "slideshow" starts running)
• IMG x/y not being supported (date picker in wrong location)
• innerHTML not stripping quotes on attributes, and innerHTML not being lowercase
• Image upload to blogger.com appearing to fail
• Page load producing a blank page
• Premature shutdown when rich text editing a page
• Meta refresh without a URL reloading the page
• Premature shudown when performing a normal shutdown procedure
• An issue when printing and print previewing emails
• Large images only rendering up to 5-10%, then nothing until fully loaded
• Yahoo! Mail chat truncating output sent from Opera
• Premature shutdown after inspecting an element with a background attribute
• Background being corrupted when scrolling (large negative text-indent)
• Not all param values being displayed
• Scrolling a page by dragging the scrollbar in print preview stops scrolling when halfway through the document
• Range header not being sent for a redirected (301) URL
• Premature shutdown occurring in the cookie dialog
• Large amount of overflow (in the vertical direction) disabling scrollbars
• XHR (XMLHttpRequest) custom headers not being resent when redirected
• An unclosed, absolutely positioned span freezing Opera if ancestors are relatively positioned, with one of them being an inline-block
• Authentication information not being propagated to Java
• MHTML file with "Content-Encoding:gzip" header causing a premature shutdown
• Popup blocker being circumvented when using JS URL and fake click
• IFRAME height property being ignored in MSR mode if scrolling=no
• Setting the same JS URL as the src of a script element halts its loading
• An active-window event not being sent after a dialog is closed, with focus then switching back to the opener
• A premature shutdown when using inline search
• Incorrect reporting of the offline cache size
• Application cache list not containing unvisited caches after shutdown/restart

Plug-in fixes:

• New Java plug-in not finding the applet on local pages
• A problem with the Quake Live (and friends) plug-in
• Voddler plug-in scripting issues
• Swedish BankID causing Opera to prematurely shut down (pensionsmyndigheten.se)
• Not being able to click links at dramaten.se: script resumes after inserting a non-plugin object
• Flash not always painting until being forced (YouTube channels)
• Modifying OuterHTML on nested objects with document.onmouseover disables page interaction
• DivX Webplayer plug-in crashing, and then showing a plug-in failed dialog
• An issue with Netflix streaming video
• Premature shutdown when hosting the Microsoft Silverlight plug-in
• Premature shutdown occurring with the unsigned_npgoogletalk.dll
• Application cache quota strategy not working properly
• Not being able to revisit a cached URL
• Page cache deleting application cache URLs
• Hangup being caused by img/float/iframe in a width-restricted element
• Unicode freezing (Wikipedia)
• Form input fields with border-radius and no border being invisible
• Premature shutdown when attempting to load mountpoint URL of file inside a zip file
• Opera freezing when changing src attribute of audio element in event handler for "ended"
• Fast history navigation stops working when document cache reaches half the size of previous problem level
• Premature shutdown when closing a tab with mouse gesture over Flash
• HTML5 video not working without a DirectSound driver
• Premature shutdown when using Web Storage
• Canvas 2D context's font attribute forcing a premature shutdown
• Disabling the Opera Speed Dial search provider is not remembered
• A document being served with an incorrect MIME breaks multistyle/font switch-writing system
• An inline element breaking the layout of inline-blocks (deviantart.com)
• JavaScript/plug-in shutdown on sites like Google Maps
• A premature shutdown occuring with WebM
• Transparent Opera Speed Dial dialogs not rendering correctly

Mail, news, chat
Improved

• Prevention of broken searches in mail

Miscellaneous
Offline Web Applications fixes

• The list of application caches not containing unvisited domains after a shutdown/restart
• Offline application cache size being incorrectly reported
• Offline application cache being unavailable for panels
• Offline application cache being unavailable for the special Opera Dragonfly window
• Offline "application_cache" not being stored in a temporary location

Geolocation services fixes

• Adding a mechanism to clear Geolocation preferences
• Corrected several erroneous Geolocation settings
• Checkbox labels in Geolocation Terms and Conditions not being clickable
• "Do you want to share your location" toolbar being displayed even if "remember my choice" was previously selected
• Show the domain rather than URL in the Geolocation toolbar

Widgets fixes

• Widgets not showing tooltips
• Inconsistent context menu item name; should be "View" instead of "Position"
• Updating the structure of widgets menu
• Wrong ordering of context menus for widgets with image, and for widgets with link

Security
Improved

• Implemented validation of certificates used in widget signature using OCSP

Fixed

• Fixed an issue where double-clicking a link can unexpectedly run a program from the Internet; see our advisory (http://www.opera.com/support/search/view/957/).
• Fixed an issue which could be used to trick users into uploading unexpected files, as reported by Andrew Valums; see our advisory (http://www.opera.com/support/search/view/958/).