Windows Phone 8.1

Windows Phone 8.1
Version of Microsoft Windows
OS familyWindows NT
CodenameWindows Phone Blue
ArchitectureARM32, x86[a]
Release date2014-04-14
Support end2017-07-11
Based on
Windows 8.1
Windows Phone 8
Replaced by
Windows 10 Mobile

Windows Phone 8.1 (codenamed Windows Phone Blue) is a version of the Windows Phone mobile operating system.

Windows Phone has its own versioning system. The build of Windows NT that a given build is based on is stated in the build's page.

List of known builds[edit | edit source]

Developer Preview[edit | edit source]

RTM[edit | edit source]

Update 1[edit | edit source]

Update 2[edit | edit source]

Notes[edit | edit source]

  1. Only available through the public Windows Phone 8.1 Software Development Kit release