This page provides details for the version history of the Microsoft's Windows Phone branded mobile operating systems, from the release of Windows Phone 7 in October 2010, which was preceded by Windows Mobile version 6.x.

Windows Phone 7

Windows Phone 7 was the first release of the Windows Phone mobile client operating system, released worldwide on October 21, 2010, and in the United States on November 8, 2010.

Windows Phone 7 version historyVersion Changes 7.0.7004 October 29, 2010 Initial version of the Windows Phone 7 OS 7.0.7008 2010 Improved update process for future update 7.0.7390 (NoDo) March 22, 2011 Added CDMA support, Copy and Paste, fast application startup, and deeper Facebook Integration 7.0.7392 2011 Revoke of fraudulent certificates 7.0.7403 2011 Intermediate update required for updating to Mango

Windows Phone 7.5

At the 2011 Mobile World Congress, Steve Ballmer announced a major update to Windows Phone 7 due toward the end of the year, Windows Phone 7.5, codenamed Mango. The new OS would address many of the platform's shortcomings, including a mobile version of Internet Explorer 9 that supports the same web standards and graphical capability as the desktop version, multi-tasking of third-party apps, Twitter integration for the People Hub, and Windows Live SkyDrive access. Although the OS internally identifies itself as version 7.1, it is marketed as version 7.5 in all published materials intended for end-users.

Microsoft started rolling out Windows Phone 7.5 to both the United States and International markets on September 27, 2011. The first phones that came pre-loaded with Windows Phone 7.5 were released in the last quarter of 2011.

A minor update released in 2012 known as Tango, along with other bug fixes, would also lower the hardware requirements to allow for devices with 800 MHz CPUs and 256 MB of RAM to run Windows Phone. Certain resource-intensive features are also disabled on these phones, and the Windows Phone Store will also prevent the installation of apps that are considered to be too intensive for use on weaker hardware. The lower requirements were adopted in order to allow the development of lower-cost devices, particularly to target emerging markets such as China.

Windows Phone 7.5 version history Version Changes 7.10.7720 (Mango) September 27, 2011Messaging and social integration Dynamic Live tile information Twitter and LinkedIn integration in the People hub. Groups: organize contacts by groups which can also be pinned on the start screen. Contact cards now include all the contacts conversation history (SMS, emails, MMS, Messenger, etc.) Facebook Places check-in support. Windows Live Messenger and Facebook Chat integration. Threads: all messaging communication organized in a single thread (Messenger, SMS, MMS). Threaded email conversations support. Outlook tasks support. Facebook events integrated into the calendar. Linked email accounts: multiple email accounts can be combined and linked into one inbox. Built-in voice-to-text/text-to-voice functionality, which will allow for hands-free texting or chatting. Server search for Exchange. Information Rights Management support for emails and Office documents. Visual Voicemail

Search/Bing Bing Vision: barcode, covers, posters, products scanning, and OCR text translation. Bing Audio / Music: Shazam-like audio recognition. Bing Local Scout: "around me" business and POI locator. Bing Quick Cards: product/media information, reviews. Bing Search: indoor maps (US only), image search results, third-party app integration. Bing Maps: turn-by-turn navigation, voice guidance.

Microsoft Office Mobile Skydrive and Office 365 documents sync (PDF also supported). Excel Mobile now supports adding additional macro functions. Microsoft Lync support via downloadable app. Added "To-Do" option when editing OneNote pages. Removed ability to edit Office documents from versions older than Office 2007.

Photo management People / Groups gallery with Skydrive and Facebook sync. People tagging in the photos with Skydrive and Facebook sync. Photo auto-fix - automatically improves sharpness, brightness, etc. Pictures tile is now animated. Video sharing via MMS, Facebook, Skydrive, and email. Twitter integration—Tweet your pics! Integration with the People Hub. Quick access to the Camera Roll. When you choose a photo from within an app, you can now pick from online albums on Facebook or SkyDrive, not just pictures saved on your phone. Pin any album to Start, including Facebook albums.

Multimedia Zune SmartDJ mix support. Artist picture now displays on lock screen when music is played. UI change of the media controls on the lock screen. Ability to control video aspect ratio during playback. Single music track repeat without having to pin it on the start screen. Podcast downloads / subscriptions over the air (US only). Open / play media content by voice. Ability to create and save playlists.

Marketplace Revamped Marketplace UI and search.

Camera UI changes (new icons + added arrow icon on the lower left of the viewfinder to indicate camera roll). Settings are now saved when the Camera application is closed. Disable/enable shutter sound. Support for front facing camera. Touch focus and capture—Tap any spot on the screen to focus there and take the shot. (This varies according to hardware—some phones will have tap-to-capture but will still automatically center focus.) Review pictures above the lock—Snap a photo when your phone is locked, then take a peek at it above the lock. You’ll only be able to get to photos you just took—better for security. Changes for portrait orientation—Now, when you take a picture in portrait orientation, you’ll see it in portrait orientation when you review it.

Games Redesigned Xbox LIVE Games hub with integrated 3D avatar and avatar customization. Friends and achievements now integrated in the hub. Fast Async for multiplayer games.

Internet Explorer 9 Mobile Hardware-accelerated rendering. Support for HTML5 audio and video playback. Background HTML5 audio playback. Geolocation support. New JavaScript engine. New UI with URL bar at the bottom of the screen. URL bar is now available in landscape mode. Removal of Find on Page feature Moved the "tabs" button to a menu item under the application bar.

Security Voice commands are now disabled when the device is locked. Complex (alpha-numeric) PIN support.

Other changes Internet sharing Battery saver: phone automatically disables power consuming services and applications running in the background if the battery is low. Also predicts time remaining on battery. Ringtone manager with custom and downloadable ringtones. The "People" tile has been reworked and is animated differently than before. Search icon and quick jump list added to the application list. Support for 16 new languages: Czech, Danish, Hungarian, Dutch (Netherlands), Norwegian, Polish, Portuguese (Brazil, Portugal), Finnish, Swedish, Greek, Russian, Korean, Chinese (Traditional, Simplified), Japanese. East Asian handwriting recognition. Support for new languages and emoticons in on-screen keyboard. Hidden WiFi network support. Qualcomm MSM7X30 and MSM8X55 support. Programs menu will have alphabetical options similar to the people functionality Power off now requires a swipe down gesture after holding down the power button for a few seconds. Removal of "soft-on" alarm feature Modification of alarm sleep interval Development API changes and additions Third-party application multi-tasking and fast application switching. Support for background tasks and services/agents. Expanded live tiles that can be updated without network connection and can have two sides which flip periodically. App Connect: third-party applications can integrate with Bing search, have multiple live tiles, and can have push notifications that link deep ("Deep Toast") into various parts of the application directly. Optional 32 bit color support for Silverlight applications with hardware dithering. Silverlight 4 support. Silverlight + XNA support in the same application screen. Raw camera feed access for third-party applications. New sensor API combines compass, gyroscope, and accelerometer. Improved Listbox control with better scrolling performance. Improved WebBrowser control with IE9 rendering engine and system-wide cookies access. Clipboard API. Hardware-accelerated video decoding in the MediaPlayer control. TCP/IP and UDP sockets support. Embedded database with LINQ (based on SQL Server Compact 4.0 engine, but without direct SQL execution). Background file transfer agent. Generational garbage collector. NEON/SIMD support for XNA applications. 7.10.7740 2011 Fixed email issue in Microsoft Exchange Server 2003 Fixed voicemail notification issue. 7.10.8107 (Refresh) 2011LTE support Fixed keyboard disappearing bug Fixed location access issue Other bugfixes 7.10.8112 2012Initial release for AT&T Nokia Lumia 900 & HTC Titan II. 7.10.8773.98 (Tango) June 28, 2012 Better media messaging Ability to send ringtones via MMS Export and manage contacts to SIM card Support for low-cost devices with 256 MB RAM and low clock CPU. New wallpapers Letter indexing More reliable notifications Attachment download with Microsoft Exchange 2003 Server Faster numeric PIN response Location awareness icon Minor improvements and changes Also confirmed are 23 additional markets including; Bahrain, Bulgaria, China, Costa Rica, Croatia, Estonia, Iceland, Iraq, Israel, Kazakhstan, Latvia, Lithuania, Qatar, Romania, Saudi Arabia, Slovakia, Slovenia, Thailand, Turkey, UAE, Ukraine, Venezuela and Vietnam. This update will also include a Skype application. The Nokia Lumia 610 and ZTE Orbit, introduced at Mobile World Congress in 2012, are the first phones to run the Tango update. 7.10.8779.8 Fixes an issue with app purchases in some regions. Changes default sync times for email. 7.10.8783.12 Provides other Windows Phone improvements.

Windows Phone 7.8 Windows Phone 7.8 is the final major release of Windows Phone 7. It consists exclusively of user interface improvements backported from Windows Phone 8, as existing Windows Phone 7 devices cannot be upgraded due to changes to its architecture and hardware requirements. These include a home screen with the ability to resize live tiles, new accent color options, and an updated lock screen with support for Bing wallpapers. Unlike Windows Phone 8, the lock screen does not allow third-party apps to display notifications on it. However, the Internet Explorer Mobile of Windows Phone 7.8 still remained to Internet Explorer Mobile 9, and Windows Phone 7.8 cannot install or run apps designed for Windows Phone 8.

Windows Phone 7.8 version history Version Changes 7.10.8858.136 February 1–2, 2013 New start screen UI with customizable sizes of the tiles, as found in Windows Phone 8 New splash screen at startup, the phone displays the new logo of Windows Phone 8 New logo for basic applications such as Games, Office, Windows Phone Store 20 accent colors (one for the manufacturer or the operator), as Windows Phone 8 Improved lock screen similar to Windows Phone 8, presence of dynamic wallpaper (Bing) notifications and probably third-party applications Volume control problems Data consumption issues with certain apps 7.10.8860.142 March 14, 2013 Intermediate update Features "several quality improvements" Enabled Tethering Wi-Fi in Samsung Omnia GT-I8350 7.10.8862.144 March 14, 2013 Fix for functionality issues with Live Tiles, such as Live Tiles not updating Details of all updates included in this release at http://www.windowsphone.com/en-gb/how-to/wp7/basics/update-history

Windows Phone 8

GDR1