Opera version history

Last update: 2015-09-15

This document provides a quick historical reference to Opera versions, release dates, release streams, rendering engines, JavaScript engine, user agent/ID strings formats, features, and improvements.

The information below describes version history for Opera browsers built using the WebKit/Chromium rendering engine, Opera versions 15.0 and above. For information about the landmarks developed in Opera's Presto rendering engine and related Opera browsers, please see Opera's archived version history.

Version downloads

Opera downloads for Mac, Windows, and Linux platforms:

Latest Opera features, security and stability release (final)

Opera highly recommends all users to update to the latest release.

Opera pre-release channel builds

WARNING: These are pre-release builds. Please use them only on properly backed up computers. They contain the latest changes, but may also have severe known issues, including crashes and data loss situations. In fact, they may not work at all.

Archived Opera versions

Legacy version of Opera for Mac, Windows, and Linux can be found in the Opera archive.

User agent string/ID

The user agent string for Chromium-based versions of Opera resembles the Chrome string with an additional browser signature:

OPR/[version major].[version minor].[build].[patch] (edition)

This signifies the name of the browser (OPR) followed by a series of numbers denoting the build.

An edition may be included in the string, if the build is from the developer or beta pre-release streams, or if the build has been custom-made for an Opera partner. For example, a developer channel release of Opera's partner build with Yandex may have a signature that looks like:

OPR/25.0.1614.18 (Edition developer-Yx)

The full user agent string looks similar to this:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.82 Safari/537.36 OPR/29.0.1795.41 (Edition beta)

This string will vary depending on your operating system and the build number you are using. Broken down, these objects mean:

Signifies the browser is Mozilla compatible.
(Operating system)
Signifies which platform and version of operating system the browser is running on.
Signifies the browser is WebKit compatible.
(Layout engine)
Signifies the layout engine used for rendering. KHTML is open-source and developed by the KDE project.
Chrome/[version, build, and patch]
Signifies the browser is Chrome compatible.
Signifies that the browser is Safari compatible.
OPR/[version, build, and patch]
Signifies the Opera browser signature (See above).
Signifies the edition of the Opera browser.

Feature facts

Discover when an Opera feature was first introduced into the WebKit/Chromium based browsers (in alphabetical order).

Feature Introduced (date: version)
Autofill 2013-08-27: 16.0
Bookmarks bar 2014-01-28: 19.0
Bookmark manager 2014-10-15: 25.0
Combined address and search bar 2013-07-02: 15.0
Custom search 2013-10-08: 17.0
Discover 2013-07-02: 15.0
Extensions 2013-07-02: 15.0
Geolocation 2013-08-27: 16.0
Heart menu 2014-07-22: 23.0
Media access 2013-11-19: 18.0
Mouse gestures 2013-07-02: 15.0
Off-Road mode 2013-07-02: 15.0
opera:flags 2013-08-27: 16.0
Opera Turbo (Turbo 2) 2014-06-03: 22.0
Pin tabs 2013-10-08: 17.0
Rocker gestures 2013-11-19: 18.0
Speed Dial 2013-07-02: 15.0
Stash 2013-07-02: 15.0
Sync services 2015-03-10: 28.0
Tab previews 2014-09-02: 24.0
Tab menu 2015-01-27: 27.0
Theme creation 2014-01-28: 19.0
Web notifications 2014-10-15: 25.0

Version history

Opera 32
Release date 2015-09-15
Rendering engine Chromium 45
JavaScript engine V8
  • Animate themes
  • Sync passwords
  • Improved heart menu
  • Tree view for bookmark manager
  • Native Mac toolbars
Opera 31
Release date 2015-08-04
Rendering engine Chromium 44
JavaScript engine V8
  • Widevine DRM support
  • Sync browsing history
Opera 30
Release date 2015-06-09
Rendering engine Chromium 43
JavaScript engine V8
  • Extensions sidebar
  • Enhanced tab menu
  • Bookmarks trash folder
  • Sync browser settings
  • HTML5 MSE/H.264 support
Opera 29
Release date 2015-04-28
Rendering engine Chromium 42
JavaScript engine V8
  • Improved start page look
  • Improved history manager
  • Sync open tabs
  • Sync and manage Speed Dial start pages
  • Audio indicator on the tab bar
  • Custom keyboard shortcuts
  • More mouse gestures
Opera 28
Release date 2015-03-10
Rendering engine Chromium 41
JavaScript engine V8
  • Sync bookmarks with phones and tablets
  • Improved bookmark manager
  • Bookmarks suggestions in address bar
  • Increased H.264 support for Mac
  • Increased vibrancy for Mac menus
Opera 27
Release date 2015-01-27
Rendering engine Chromium 40
JavaScript engine V8
  • Tab menu
  • Enhanced bookmark manager
  • Improved PPAPI support
  • Support for synthesized speech
  • New start page navigation
Opera 26
Release date 2014-12-03
Rendering engine Chromium 39
JavaScript engine V8
  • Browser data import
  • Print preview
  • Bookmark sharing
  • Handoff support for Mac
  • Popover enhancement for Mac
Opera 25
Release date 2014-10-15
Rendering engine Chromium 38
JavaScript engine V8
  • Bookmark manager
  • PDF viewer
  • Web notifications
  • Experimental start page
  • More support for HiDPI video and MP3 audio
  • Network installation on Mac
Opera 24
Release date 2014-09-02
Rendering engine Chromium 37
JavaScript engine V8
  • Tab previews
  • HiDPI improvements on Windows
  • Darker window color for private browsing on Windows
Opera 23
Release date 2014-07-22
Rendering engine Chromium 36
JavaScript engine V8
  • Heart menu in combined search and address bar
  • UI to allow blocked content in secure sessions
Opera 22
Release date 2014-06-03
Rendering engine Chromium 35
JavaScript engine V8
  • HiDPI improvements
  • New default themes
Opera 21
Release date 2014-05-06
Rendering engine Chromium 34
JavaScript engine V8
  • Aura implementation (Windows)
  • Option to display full URL in address bar
  • Broken padlock security badge
Opera 20
Release date 2014-03-04
Rendering engine Chromium 33
JavaScript engine V8
  • Improved Stash screenshots
  • Draggable bookmarks
  • Speed Dial entry manual sizing
Opera 19
Release date 2014-01-28
Rendering engine Chromium 32
JavaScript engine V8
  • Bookmarks bar
  • Theme creation
  • Advanced settings
Opera 18
Release date 2013-11-19
Rendering engine Chromium 31
JavaScript engine V8
Opera 17
Release date 2013-10-08
Rendering engine Chromium 30
JavaScript engine V8
  • Pinned tabs
  • Custom search
  • Startup behavior options
Opera 16
Release date 2013-08-27
Rendering engine Chromium 29
JavaScript engine V8
  • opera:flags experimental test features
  • Geolocation and location sharing
  • Presentation mode for Mac
  • Task bar and start menu integration for Windows 7 and 8
Opera 15
Release date 2013-07-02
Rendering engine Chromium 28
JavaScript engine V8
  • New rendering engine based on Chromium/Blink
  • New user interface
  • Improved site compatibility
  • Silent auto updates
  • Combined address and search bar
  • Enhanced Speed Dial
  • Stash
  • Discover
  • Off-Road mode

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