Changelog details here http://www.opera.com/docs/changelogs/windows/1160/ .
Basics changes are,
Basics changes are,
New and improved features
Code name
Opera 11.60 uses "Tunny" as its code name.
Opera Presto 2.10 rendering engine
Opera 11.60 uses the Opera Presto 2.10 rendering engine (Presto/2.10.229).
Opera Mail
The user interface for Opera Mail has been redesigned.
Two-lined message list: Opera Mail will now default to "list on the left, message on the right", with the newest message on top, and showing message threads.
Mail grouping: Opera will automatically group messages by date. You can also group them by unread status, by pinned status, or not at all.
Cleaned up look: The mail toolbars are simplified, and icons have been redesigned.
New settings dialogs: The "View" dropdown menu with all its sub-menus has been replaced by an overlay dialog that can be reached by clicking the "wrench" button.
Pinning: You can now "pin" messages with one click in the message list or in the message headers, to mark a message for attention. This pinning is mapped to the IMAP \Flagged feature, so it corresponds to "starring" and "flagging" in other IMAP clients, and with Gmail's starred messages.
See: Mail goes two-lined and grouped
Featherweight address field with star menu
The star menu in the address field allows you to quickly bookmark a page or to create a Speed Dial entry.
Web specifications support
Opera 11.60 incorporates web specifications added up to and including Opera Presto 2.10 core-integration-point 229. For further reference please see:
Web specifications support in Opera
HTML5 Parser
Implemented the HTML5 parsing algorithm
The HTML5 specification defines a set of parsing rules for all markup, whether valid or invalid. Once all browsers have HTML5 parsers, the same markup will produce the same DOM across all conforming browsers. Hence, the HTML5 parser will improve website compatibility.
See: Parsing HTML documents
HTML5 <audio> and <video>
Implemented support for the following attributes:
preload
buffered
seekable
muted
See: Media elements
HTML5 Microdata
Implemented the DOM API for HTML5 Microdata.
See: HTML Microdata
HTML5 custom scheme and content handlers
Implemented support for registerProtocolHandler() and registerContentHandler() methods.
See: Custom scheme and content handlers
ECMAScript 5.1
Implemented full support for ECMAScript 5.1
See: ECMAScript Language Specification
XMLHttpRequest Level 2
Implemented support for "Khronos Typed Arrays" and XMLHttpRequest Level 2 support for receiving ArrayBuffers
See: Typed Array Specification
CSS3
Implemented full support for for radial-gradient and repeated-radial-gradient.
See CSS Image Values and Replaced Content Module Level 3
CSS3, SVG
Implemented support for font-relative length rem in CSS and SVG.
See: CSS Values and Units Module Level 3
See: Interface SVGLength
CSS4
Added support for applying the image-rendering property to HTML content, including: <img>, <canvas>, <video poster>, background-image, and (-o-)border-image.
The supported values of the image-rendering property are:
auto
optimizeSpeed
optimizeQuality
-o-crisp-edges
See CSS Image Values and Replaced Content Module Level 4
Geolocation
Implemented Google's new geolocation JSON API.