Opera 40.0.2308.54

Opera是一套從挪威來的網路瀏覽器，其啟動速度快速，且內建功能豐富，有分頁標籤功能，滑鼠手勢功能，且支援最新的widget技術，可供擴充。

• Opera 自訂性強、內建功能多元的多標籤頁的網路瀏覽器，可快速切換網頁。
• 方便的書籤欄能保存經常瀏覽的網站和書籤文件。您可以在工具欄啟用此功能。
• Opera提供許多方法來執行瀏覽器操作，並且還可以自定義自己的鍵盤快捷鍵，鼠標手勢等。
• 世界各地的社群維護不同的Opera版本。
• Opera提供Mini手機版本的網頁瀏覽器。

* free VPN
* Automatic battery saving
* Chromecast support
* Video pop-out improvements
* Newsreader with RSS support
* Updated browser engine
* Chromium 53.0.2785.101
* Improved to allow unicode
* Shadow DOM v1 to allow developers to make their own custom HTML elements and ensure styles are encapsulated. (This is part of a wider suite of specifications collectively known as “Web Components”.)
* Promise-based getUserMedia. The navigator.mediaDevices.getUserMedia() API, which returns a promise, is now supported.
* Unprefixed CSS filter. The CSS filter property is now supported in its unprefixed form. A demo featuring SpongeBob SquarePants is available. For now, -webkit-filter is still supported as an alias for filter to aid backwards compatibility. The prefixed version may be removed in future.
* HTTP/0.9, the predecessor to HTTP/1.x, is now deprecated and will be removed in a future release. Its replacement, HTTP/1.0, was standardized 20 years ago, and HTTP 2 is just around the corner, which will mean a faster web.
* Support for DHE-based TLS ciphers has been removed after being deprecated in Chromium 51 & Opera 38. Servers should upgrade to ECDHE ciphers instead.