Opera introduces the looks and the performance of an exceptional Web browser.

Opera is famous for its speed, security, flexibility, and standards support. Itself in supporting all major web standards currently in use, including CSS 2.1, XHTML 1.1, HTML 4.01, HTML5, WML 2.0, ECMAScript, DOM 2 and SVG 1.1 tiny.

General Features:

• Tab stacking
• Mouse gestures
• Extensions
• Opera Turbo
• Speed Dial
• Opera Link
• Password manager
• Opera Unite
• Zoom

What's New:

Code name

• Opera 11.60 beta uses "Tunny" as its code name.

Opera Presto 2.10 rendering engine

• Opera 11.60 beta uses the latest version of the Opera Presto 2.10 rendering engine.

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 always 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• New settings dialogs: The "View" dropdown menu with all its sub-menus has been replaced by an overlay dialog that can be reached by clicking the "wrench" button.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 beta 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

• 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

This beta is a test version of new features in the next release. It includes known bugs and may be unstable in certain browsing conditions. It is strongly recommended that you back up your current Opera installation before installing this version.