Opera version history

Last update: 2017-09-27

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 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.87 Safari/537.36 OPR/37.0.2178.31 (Edition beta)

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

Mozilla/[version]
Signifies the browser is Mozilla compatible.
(Operating system)
Signifies which platform and version of operating system the browser is running on.
AppleWebKit/[build]
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.
Safari/[build]
Signifies that the browser is Safari compatible.
OPR/[version, build, and patch]
Signifies the Opera browser signature (See above).
(Edition)
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)
Ad blocker 2016-05-04: 37.0
Animated PNG support 2017-06-22: 46.0
Autofill 2013-08-27: 16.0
Battery saver 2016-06-08: 38.0
Bookmarks bar 2014-01-28: 19.0
Bookmark manager 2014-10-15: 25.0
Classic link selection (revived from Opera 12) 2017-02-07: 43.0
Combined address and search bar 2013-07-02: 15.0
Currency converter 2016-13-12: 42.0
Custom search 2013-10-08: 17.0
Dark theme 2017-05-10: 45.0
Discover (news feed) 2013-07-02: 15.0
Exportable bookmarks 2017-08-09: 47.0
Extensions 2013-07-02: 15.0
Geolocation 2013-08-27: 16.0
Heart menu 2014-07-22: 23.0
Mac Touch Bar UI 2017-03-21: 44.0
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
Personalized newsreader 2016-08-02: 39.0
Rocker gestures 2013-11-19: 18.0
Search pop up 2016-08-02: 39.0
Sidebar messengers 2017-05-10: 45.0
Snapshot 2017-09-27: 48.0
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
Time zone converter 2017-09-27: 48.0
Unit converter 2017-09-27: 48.0
URL suggestion removal 2017-09-27: 48.0
VPN (free, built-in) 2016-20-09: 40.0
WebAssembly 2017-03-21: 44.0
Web notifications 2014-10-15: 25.0
Video pop out 2016-05-04: 37.0

Version history

Opera 48
Release date 2017-09-27
Rendering engine Chromium 61
JavaScript engine V8
Features
  • Unit converter
  • Time zone converter
  • Snapshot
  • URL suggestion removal
Opera 47
Release date 2017-08-09
Rendering engine Chromium 60
JavaScript engine V8
Features
  • Exportable bookmarks
Opera 46
Release date 2017-06-22
Rendering engine Chromium 59
JavaScript engine V8
Features
  • Animated PNG support
Opera 45
Release date 2017-05-10
Rendering engine Chromium 58
JavaScript engine V8
Features
  • Sidebar messengers
  • Dark theme
  • Improved ad blocker
  • Refreshed UI
Opera 44
Release date 2017-03-21
Rendering engine Chromium 57
JavaScript engine V8
Features
  • Mac Touch Bar UI
  • WebAssembly
Opera 43
Release date 2017-02-07
Rendering engine Chromium 56
JavaScript engine V8
Features
  • Instant page loading
  • Profile Guided Optimization (PGO) for Windows
  • Classic link selection returns
Opera 42
Release date 2016-12-13
Rendering engine Chromium 55
JavaScript engine V8
Features
  • Built-in currency converter
  • Improved startup; smarter and faster
  • Newsreader shortcut in URL address bar
  • Network installer for Opera 64-bit
Opera 41
Release date 2016-10-25
Rendering engine Chromium 54
JavaScript engine V8
Features
  • Faster startup.
  • Longer battery time when video conferencing
  • Hardware-accelerated video pop-out
  • Personalized newsreader improvements
  • Stability enhancements and bug fixes
Opera 40
Release date 2016-09-20
Rendering engine Chromium 53
JavaScript engine V8
Features
  • Free, unlimited, no-log browser VPN service
  • Automatic battery saving
  • Chromecast support
  • Video pop-out improvements
  • Newsreader with RSS support
  • Stability enhancements and bug fixes
Opera 39
Release date 2016-08-02
Rendering engine Chromium 52
JavaScript engine V8
Features
  • Personalized newsreader
  • Improved video pop out
  • Customizable block lists to the native ad blocker
  • Search pop-up
  • Stability enhancements and bug fixes
Opera 38
Release date 2016-06-08
Rendering engine Chromium 51
JavaScript engine V8
Features
  • Battery saver
  • Ad blocker – add your own lists
  • Speed Dial improvements
    • Add your own photo as theme
    • Extension button visible in the Speed Dial side panel
  • Stability enhancements and bug fixes
Opera 37
Release date 2016-05-04
Rendering engine Chromium 50
JavaScript engine V8
Features
  • Built-in ad blocker makes webpages load faster
  • Video pop out displays video in a floating frame, always on top
Opera 36
Release date 2016-03-15
Rendering engine Chromium 49
JavaScript engine V8
Features
  • News feed on start page
  • Updated start page look and feel
  • Touch support for Windows 10
Opera 35
Release date 2016-02-02
Rendering engine Chromium 48
JavaScript engine V8
Features
  • Basic settings page
  • Mute button in tab bar
  • Active download warning on exit
  • Removal of bookmark duplicates
  • Optional separate search bar
Opera 34
Release date 2015-12-08
Rendering engine Chromium 47
JavaScript engine V8
Features
  • MSE audio playback
  • Share button on Mac
Opera 33
Release date 2015-10-27
Rendering engine Chromium 46
JavaScript engine V8
Features
  • Turbo 2 compression
  • Proprietary audio codec support
  • MIDI system-exclusive message settings
  • Protocol handler settings
  • Discontinued NPAPI support
Opera 32
Release date 2015-09-15
Rendering engine Chromium 45
JavaScript engine V8
Features
  • 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
Features
  • Widevine DRM support
  • Sync browsing history
Opera 30
Release date 2015-06-09
Rendering engine Chromium 43
JavaScript engine V8
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • 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
Features
  • HiDPI improvements
  • New default themes
Opera 21
Release date 2014-05-06
Rendering engine Chromium 34
JavaScript engine V8
Features
  • 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
Features
  • Improved Stash screenshots
  • Draggable bookmarks
  • Speed Dial entry manual sizing
Opera 19
Release date 2014-01-28
Rendering engine Chromium 32
JavaScript engine V8
Features
  • Bookmarks bar
  • Theme creation
  • Advanced settings
Opera 18
Release date 2013-11-19
Rendering engine Chromium 31
JavaScript engine V8
Features
Opera 17
Release date 2013-10-08
Rendering engine Chromium 30
JavaScript engine V8
Features
  • Pinned tabs
  • Custom search
  • Startup behavior options
Opera 16
Release date 2013-08-27
Rendering engine Chromium 29
JavaScript engine V8
Features
  • 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
Features
  • 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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