Opera is a very fast, elegant and easy to use Web browser.

Opera's cross-platform Web browser technology is renowned for its performance, standards compliance and small size, while giving users a faster, safer and more dynamic online experience.

Opera Web browser scores a 100/100 on the Acid3 test.

Version 11.10.2048:

Code name

* Opera 11.10 beta uses "Barracuda" as its code name.

Opera Presto 2.8 rendering engine

* Opera 11.10 beta uses the new Opera Presto 2.8 rendering engine as identified in its user agent string.
* Opera/9.80 (Windows NT 5.1; U; en) Presto/2.8.119 Version/11.10

URL Filter API for Opera extensions

* The URL Filter API for Opera extensions defines a DOM interface that allows extensions to add temporary rules to Opera's native content blocker. Rules added through this API are associated with an extension and apply as long as an extension is enabled. Once an extension is disabled or the browser is shut down, the temporary rules are discarded.
* It defines the API that is applied to an extension browsing context.
* An extension browsing context is a browsing context that implements the Opera extension interface (opera.extension).
* See URL Filter API for Opera extensions

WebP

* Opera adds support for the Google WebP image format.
* This enhances Opera Turbo's compression performance with images.
* WebP is a new image format that provides lossy compression for photographic images.
* A WebP file consists of VP8 image data, and a container based on the Resource Interchange File Format (RIFF).
* See WebP: A new image format for the Web
* See RIFF Container

Feature improvements

Declarative UI

* Written in YAML:
* A human friendly data serialization standard for all programming languages
* A tool for visual layout development of YAML based CSS layouts

Improves:

* Adaptation to different string sizes for different languages
* Changes in layout for a specific platform to get closer to platform guidelines
* Dialogs with variable contents

Requirements

Intel, Mac OS X 10.4 or later

Download

Fileserver

http://www.fileserve.com/file/zbhKq2v/Opera_11.10_b1_Intel.dmg

Filesonic

http://www.filesonic.com/file/291584351/Opera_11.10_b1_Intel.dmg