Windows Phone 8.1 Update 2 is the latest OS update to the Microsoft Windows Phone 8.1 operating system. Internally it is known as GDR2 or general distribution release 2.

Update 2 is the second update to Windows Phone 8.1, with Update 1 releasing in August 2014. Some Windows Phones began receiving Update 2 updates in late May 2015 while the Lumia series began receiving updates at the beginning of June.

Windows Phone 8.1 Update 2 is only confirmed for the Lumia 640, Lumia 640 XL, Lumia 735, and Lumia 830. BLU has also updated their Win HD LTE devices. The new Verizon LG Lancet also shipped with Update 2 preinstalled. Here are the following main features of Update 2:

Windows Phone 8.1 Update 2 Main Features

  • Reorganized Settings screen with categories and search
  • MKV support for video playback
  • Bluetooth HID support for external keyboards and get your text messages straight from your car if it has a compatible Bluetooth system.
  • Devices with on-screen navigation bar can now 'double tap' on the bar to turn the display off
  • App privacy permission toggles
  • Pin Individual Settings to the Start screen
  • Reset Protection feature
  • Calendar. Agenda view is back.
  • Name your phone. Give your phone a name without connecting to a PC. Just tap Settings > About > Edit name to name it.
  • VPN. Now you can use certificates to sign in for L2TP VPN connections. Always-on VPN profiles are now supported too, so you're automatically and always connected.

Typically, GDR updates from Microsoft enable new hardware for phone manufacturers, although there are often some minor consumer-facing features as well.

Windows Phone 8.1 Update 2 is expected to be the last iteration of the 8.1 operating system. Microsoft is instead moving most modern Windows Phones to Windows 10 Mobile in fall of 2015.