windows
Microsoft rolls out Windows Phone 7 security update
No word on what other fixes the update brings, but if you’ve received the notification, just plug your phone into your computer and run Zune to update it. Of course, make sure you backup your files just in case anything goes wrong. After all you can’t be too careful.
Microsoft has also mentioned that their updates are cumulative, so if you’ve missed out on the NoDo update or any other fixes before that, this update should bring you up to speed.